Tootfinder

Has anybody seen #RFC9727
(api-catalog: A Well-Known URI and Link Relation to Help Discovery of APIs) implemented anywhere on the internet yet?
https://www.rfc-editor.org/rfc/rfc9727.html

Phospho-Tau 217, Plasma

USEFUL FOR
Evaluation of individuals, aged 50 years and older, presenting with cognitive impairment who are being assessed for Alzheimer disease and other causes of cognitive decline
 
This test is not intended as a screening test for Alzheimer disease in asymptomatic individuals.
https:/…

Safe and Certifiable AI Systems: Concepts, Challenges, and Lessons Learned
Kajetan Schweighofer, Barbara Brune, Lukas Gruber, Simon Schmid, Alexander Aufreiter, Andreas Gruber, Thomas Doms, Sebastian Eder, Florian Mayer, Xaver-Paul Stadlbauer, Christoph Schwald, Werner Zellinger, Bernhard Nessler, Sepp Hochreiter
https://arxiv.org/abs/2509…

Safe and Certifiable AI Systems: Concepts, Challenges, and Lessons Learned
There is an increasing adoption of artificial intelligence in safety-critical applications, yet practical schemes for certifying that AI systems are safe, lawful and socially acceptable remain scarce. This white paper presents the TÜV AUSTRIA Trusted AI framework an end-to-end audit catalog and methodology for assessing and certifying machine learning systems. The audit catalog has been in continuous development since 2019 in an ongoing collaboration with scientific partners. Building on three…

Binary Black Hole Phase Space Discovers the Signature of Pair Instability Supernovae Mass Gap
Samsuzzaman Afroz, Suvodip Mukherjee
https://arxiv.org/abs/2509.09123 https://

Binary Black Hole Phase Space Discovers the Signature of Pair Instability Supernovae Mass Gap
The rapidly expanding catalog of gravitational-wave detections provides a powerful probe of the formation history of compact binaries across cosmic time. In this work, we extend the Binary Compact Object (BCO) phase-space framework to the full set of events in the GWTC-4 catalog to map the observed binary formation scenarios in a data-driven way. Applying this framework, we identify distinct regions of phase-space associated with different channels and discover for the first time a unique mass-…

A Comprehensive All-Sky Catalog of 3345 Molecular Clouds from Three-dimensional Dust Extinction
Tao Wang, Haibo Yuan, Bingqiu Chen, Guangxing Li, Bowen Huang, Helong Guo, Ruoyi Zhang
https://arxiv.org/abs/2509.07670

A Comprehensive All-Sky Catalog of 3345 Molecular Clouds from Three-dimensional Dust Extinction
Understanding the distribution and properties of molecular clouds is crucial for tracing the structure and evolution of the interstellar medium and the large-scale morphology of the Milky Way. Here we present an all-sky catalog of 3,345 molecular clouds identified from our previous three-dimensional dust reddening map using a dendrogram-based clustering method with distance-adaptive parameters. The catalog spans heliocentric distances from 90 pc to 4.3 kpc and includes key physical properties f…

An updated catalog of HIRES/Keck radial velocity measurements. Including Ca II H&K measurements
Jerusalem T. Teklu, Volker Perdelwitz, R. Paul Butler, Trifon Trifonov, Steven S. Vogt, Deepa Mukhija, Lev Tal-Or
https://arxiv.org/abs/2509.06072

An updated catalog of HIRES/Keck radial velocity measurements. Including Ca II H&K measurements
The first HIRES/Keck precision radial velocity (RV) catalog was released in 2017; it was followed by a second release in 2019, which incorporated corrections for small but significant systematic errors. The manifestation of stellar activity accompanied by systematic errors could affect the detection of exoplanets via the RV method. We expanded the HIRES catalog to March 2023 using publicly available spectra. Furthermore, we included the chromospheric emission line Ca II H&K indicator ($R_{\math…

I got an advertisement in the mail that offered a full print catalog on request. Which reminded me I miss catalogs.
DigiKey was particularly inspiring - flipping through pages of ICs and switches and cases and their diagrams and imagining projects.
Unfortunately I don't think I have any anymore: recycling them to save on very limited space, assuming another would show up.
(Jameco & Mouser too, but for whatever reason even when I ordered more from Jameco, I liked th…

C3PO V: Comoving Pairs Indicate Rotational Spin-Down Drives the Main-Sequence Li-Dip
Qinghui Sun (Lucy), Yuan-Sen Ting (Lucy), Barbara J. Anthony-Twarog (Lucy), Bruce A. Twarog (Lucy), Fan Liu (Lucy), Yuxi (Lucy), Lu
https://arxiv.org/abs/2508.08671

C3PO V: Comoving Pairs Indicate Rotational Spin-Down Drives the Main-Sequence Li-Dip
The lithium-dip observed in mid-F dwarfs remains a long-standing challenge for stellar evolution models. We present high-precision stellar parameters and A(Li) for 22 new comoving pairs, primarily located on the hotter side of the Li-Dip. Combined with pairs from the C3PO catalog, our sample includes 124 stars with Teff between 6000 and 7300 K, encompassing and extending slightly beyond the Li-Dip. Among them, 49 comoving pairs (98 stars) have both components within the temperature range of int…

First ICCUB Numerical Relativity Waveform Catalog of Eccentric Black Hole Binaries
J. Trenado, T. Andrade, A. Climent, M. A. Ferrer
https://arxiv.org/abs/2509.05269 https://

First ICCUB Numerical Relativity Waveform Catalog of Eccentric Black Hole Binaries
We release the first Numerical Relativity catalog of Institut de Ciencies del Cosmos at University of Barcelona (ICCUB) consisting of 128 simulations for black hole binaries. All simulations in this first release correspond to highly eccentric binaries with eccentricity $e = (0.62,0.79)$ which develop zoom-whirls up to three close passages before merger. We consider aligned, equal spin configurations in the range $χ= (-0.5, 0.5)$ and equal mass ratios. For each simulation, we provide the mod…

Independent music company Reservoir Media acquires the majority of the Miles Davis estate's music rights; Reservoir has spent $876M on acquisitions since 2007 (Ben Sisario/New York Times)
https://www.nytimes.com/2025/09/09/arts/music/miles-davis-esta…

Miles Davis Catalog Sells to Reservoir Media, a Small but Savvy Player
Reservoir, led by Golnar Khosrowshahi, has acquired the majority of music rights owned by the Davis estate ahead of the jazz master’s centennial next year.

Cluster Catalog Validation with Multiwavelength Data
Ethan K. Steelberg, Tesla E. Jeltema, Jackson H. O'Donnell, Rance Solomon, The LSST Dark Energy Science Collaboration
https://arxiv.org/abs/2509.07268

Cluster Catalog Validation with Multiwavelength Data
The Legacy Survey of Space and Time (LSST) will provide a ground-breaking data set for cosmology, but to achieve the precision needed, the data, data reduction, and algorithms measuring the cosmological data vectors must be thoroughly validated and calibrated. In this note, we focus on clusters of galaxies and present a set of validation tests for optical cluster finding algorithms through comparison to X-ray and Sunyaev-Zel'dovich effect cluster catalogs. As an example, we apply our pipeline t…

AudioBoost: Increasing Audiobook Retrievability in Spotify Search with Synthetic Query Generation
Enrico Palumbo, Gustavo Penha, Alva Liu, Marcus Eltscheminov, Jefferson Carvalho dos Santos, Alice Wang, Hugues Bouchard, Humberto Jes\'us Corona Pampin, Michelle Tran Luu
https://arxiv.org/abs/2509.06452

AudioBoost: Increasing Audiobook Retrievability in Spotify Search with Synthetic Query Generation
Spotify has recently introduced audiobooks as part of its catalog, complementing its music and podcast offering. Search is often the first entry point for users to access new items, and an important goal for Spotify is to support users in the exploration of the audiobook catalog. More specifically, we would like to enable users without a specific item in mind to broadly search by topic, genre, story tropes, decade, and discover audiobooks, authors and publishers they may like. To do this, we ne…

Gaia DR3 Open Cluster Cepheids: A Unified Catalog with Calibrated Period-Age and Period-Wesenheit Relations
Shunhong Deng, Zhihong He, Anbing Ren, Qian Cui, Xiaoyue Zhou, Liming Peng, Chenxin Wang, Ziang Chen, Yangping Luo, Kun Wang
https://arxiv.org/abs/2510.08390

Gaia DR3 Open Cluster Cepheids: A Unified Catalog with Calibrated Period-Age and Period-Wesenheit Relations
Classical Cepheids (CCs) in Galactic open clusters (OCs) provide essential observational constraints for calibrating the period-age relation (PAR) and the period-Wesenheit relation (PWR) of CCs. However, distant and long-period OC Cepheids remain limited, while the confirmed samples still require more precise determinations of their physical properties, such as ages and extinctions. In this work, we present a comprehensive census of OC Cepheids based on an extensive sample of distant OCs from G…

'This is child trafficking' — Russia launches 'catalog' of Ukrainian children for adoption, sorted by eye and hair color
https://kyivindependent.com/russia-launches-catalogue-of-ukrainian-children-for-adoption-sorted-by-eye-and-hair-color/

AllBRICQS: The Discovery of Luminous Quasars in the Northern Hemisphere
Yunyi Choi, Yuming Fu, Myungshin Im, Xue-Bing Wu, Christopher A. Onken, Christian Wolf, Seo-Won Chang, Hyeonho Choi, Mankeun Jeong, Yongjung Kim, Gu Lim, Yuxuan Pang, Taewan Kim, Jubee Sohn, Dohyeong Kim, Ji Hoon Kim, Eunhee Ko, Gregory S. H. Paek, Sungho Jung
https://…

AllBRICQS: The Discovery of Luminous Quasars in the Northern Hemisphere
We present the second catalog of bright quasars from the All-sky BRIght, Complete Quasar Survey (AllBRICQS), focusing on spectroscopically observed quasars in the Northern Hemisphere with Galactic latitude $|b| > 10^\circ$. This catalog includes their spectral data, redshifts, and luminosities. AllBRICQS aims to identify the last remaining optically bright quasars using data from the Wide-field Infrared Survey Explorer (WISE) and Gaia all-sky survey Data Release 3 (DR3). AllBRICQS sea…

I Can't Patch My OT Systems! A Look at CISA's KEVC Workarounds & Mitigations for OT
Philip Huff, Nishka Gandu, Pavel Nov\'ak
https://arxiv.org/abs/2510.06951 htt…

I Can't Patch My OT Systems! A Look at CISA's KEVC Workarounds & Mitigations for OT
We examine the state of publicly available information about known exploitable vulnerabilities applicable to operational technology (OT) environments. Specifically, we analyze the Known Exploitable Vulnerabilities Catalog (KEVC) maintained by the US Department of Homeland Security Cybersecurity and Infrastructure Security Agency (CISA) to assess whether currently available data is sufficient for effective and reliable remediation in OT settings. Our team analyzed all KEVC entries through July 2…

1FLAT: a Firmamento-based catalog of AGN in Fermi-LAT high Galactic latitude {\gamma}-ray sources
P. Giommi, M. Doro, M. Gouv\^ea, L. Fronte, F. Metruccio, F. Arneodo, U. Barres de Almeida, S. Di Pippo, T. Kerscher, A. Macci\'o, B. Mazzon, M. Morrone, E. Prandini, A. Rodr\'iguez, A. Ruina, N. Sahakyan, L. Silveri, D. Tripathi
https://

1FLAT: a Firmamento-based catalog of AGN in Fermi-LAT high Galactic latitude γ-ray sources
We present a systematic reassessment of 5,062 high-Galactic latitude gamma-ray sources from the Fermi-LAT 4FGL-DR4 catalog using Firmamento, a web-based platform for multi-frequency source discovery and analysis. Our goal is to provide an independent evaluation of LAT gamma-ray source associations through alternative spectral and spatial methods that combine recent and legacy survey data, supplemented by human supervision of spectral energy distributions (SEDs), source morphology, flux variabil…

from my link log —
A catalog of ways that compilers generate SSA.
https://bernsteinbear.com/blog/ssa/
saved 2025-02-11 https://

Number of #bitnami container images in the #homelab cluster: 4
Number of #bitnami container images to remove: 3

Towards Accurate Asteroseismic Masses for Luminous Giants
Kaili Cao (OSU), Marc H. Pinsonneault (OSU)
https://arxiv.org/abs/2508.06609 https://arxiv.org/pd…

Towards Accurate Asteroseismic Masses for Luminous Giants
Asteroseismology, the study of stellar oscillations, provides high-precision measurements of masses and ages for red giants. Scaling relations are a powerful tool for measuring fundamental stellar parameters, and the derived radii are in good agreement with fundamental data for low-luminosity giants. However, for luminous red giant branch (RGB) stars, there are clear systematic offsets. In APOKASC-3, the third joint spectroscopic and asteroseismic catalog for evolved stars in the Kepler fields,…

Discussing ANZAC biscuits with my wife led me down a rabbit hole to 1917’s War Chest Cookery Book (https://catalogue.nla.gov.au/catalog/1955520).
This recipe has me intrigued. I didn’t expect to see macaroni in 1910s Australia, let alone that people would boil it with celery and carr…

SDSS low z quasar companion galaxies
D. Bettoni (INAF - Osservatorio Astronomico di Padova), R. Falomo (INAF - Osservatorio Astronomico di Padova), S. Paiano (INAF - IASF Palermo)
https://arxiv.org/abs/2509.09483

SDSS low z quasar companion galaxies
We investigate the relationship between quasars and close companion galaxies using photometry and spectroscopy from the large data set of the SDSS DR16 survey. From the SDSS-QSO catalog of quasars, we selected objects with 0.1 < z < 0.35 and absolute magnitude M(r) <-21.3. For all these targets, we searched for candidate companion galaxies that have a projected distance from the target < 700 kpc and a radial velocity difference from the QSO DeltaV < 1000 km/sec. We find that in 447 QSO at least…

This looks pretty cool...
"What Rides at Night: Queer, Feminist, Fantastical Bicycle Halloween Stories"
#bikeTooter

What Rides at Night: Queer, Feminist, Fantastical Bicycle Halloween Stories
When the veil thins, the bicycle revolution rises. Thirteen new, original, spooky stories for the thirteenth volume in the series!  Gather ‘round,...

The Open mulTiwavelength Transient Event Repository (OTTER): Infrastructure Release and Tidal Disruption Event Catalog
Noah Franz, Kate D Alexander, Sebastian Gomez, Collin T Christy, Tanmoy Laskar, Sjoert van Velzen, Nicholas Earl, Suvi Gezari, Mitchell Karmen, Raffaella Margutti, Jeniveve Pearson, V. Ashley Villar, Ann I Zabludoff
https://

The Open mulTiwavelength Transient Event Repository (OTTER): Infrastructure Release and Tidal Disruption Event Catalog
Multiwavelength analyses of astrophysical transients are essential for understanding the physics of these events. To make such analyses more efficient and effective, we present the Open mulTiwavelength Transient Event Repository (OTTER), a publicly available catalog of published transient event metadata and photometry. Unlike previous efforts, our data schema is optimized for the storage of multiwavelength photometric datasets spanning the entire electromagnetic spectrum. Open source software, …

GW230814: investigation of a loud gravitational-wave signal observed with a single detector
The LIGO Scientific Collaboration, The Virgo Collaboration, The Kagra Collaboration, Others
https://arxiv.org/abs/2509.07348

GW230814: investigation of a loud gravitational-wave signal observed with a single detector
GW230814 was detected by the LIGO Livingston observatory with a signal-to-noise ratio of 42.4 making it the loudest gravitational-wave signal in the GWTC-4.0 catalog. The source is consistent with a binary black hole coalescence similar to those in the previously observed population, with component masses $m_1 = 33.7^{+2.9}_{-2.2}$ $\mathrm{M}_\odot$, $m_2 = 28.2^{+2.2}_{-3.1} M_\odot$, and small effective inspiral spin $χ_{\mathrm{eff}}= -0.01^{+0.06}_{-0.07}$. The high signal-to-noise ratio …

Enhancing Multiplet Alignment Measurements with Imaging
Alexus Annika Kumwembe, Claire Lamman, Daniel Eisenstein, Jessica Nicole Aguilar, Steven Ahlen, Davide Bianchi, David Brooks, Todd Claybaugh, Andrei Cuceu, Axel de la Macorra, Biprateep Dey, Peter Doel, Andreu Font-Ribera, Jaime E. Forero-Romero, Enrique Gaztanaga, Satya Gontcho A Gontcho, Gaston Gutierrez, Mustapha Ishak, Jorge Jimenez, Dick Joyce, Robert Kehoe, Theodore Kisner, Ofer Lahav, Martin Landriau, Marc Manera, Ramon Miq…

Enhancing Multiplet Alignment Measurements with Imaging
We demonstrate that measurements of the gravitational tidal field made with spectroscopic redshifts can be improved with information from imaging surveys. The average orientation of small groups of galaxies, or "multiplets" is correlated with large-scale structure and is used to measure the direction of tidal forces. Previously, multiplet intrinsic alignment has been measured in DESI using galaxies that have spectroscopic redshifts. The DESI Legacy Imaging catalog can be used to supplement mult…

Sources: BMG, a division of Bertelsmann, buys Jason Aldean's catalog along with 1,000 songs by 23 artists, in a deal worth $250M, its single largest acquisition (Murray Stassen/Music Business Worldwide)
https://www.musicbusinessworldwide.com…

BMG acquires Jason Aldean’s recorded catalog plus tranche of other rights in $250m deal
Deal brings company’s total investment in music rights since the launch of Bertelsmann’s ‘Boost program’ in 2021 to $1.5bn+…

BGRem: A background noise remover for astronomical images based on a diffusion model
R. Nicolaas, S. Caron, F. Stoppa, S. Bhattacharyya, R. Ruiz de Austri, P. J. Groot, A. J. Levan
https://arxiv.org/abs/2510.04718

BGRem: A background noise remover for astronomical images based on a diffusion model
Context: Astronomical imaging aims to maximize signal capture while minimizing noise. Enhancing the signal-to-noise ratio directly on detectors is difficult and expensive, leading to extensive research in advanced post-processing techniques. Aims: Removing background noise from images is a valuable pre-processing step catalog-building tasks. We introduce BGRem, a machine learning (ML) based tool to remove background noise from astronomical images. Methods: BGRem uses a diffusion-based model…

GWTC-4.0 - An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog and three more papers: #GravitationalWave detection Rainer Weiss has died at 92: https://www.space.mit.edu/news/professor-emeritus-rainer-weiss-influential-physicist-who-forged-new-paths-to-understanding-the-universe-dies-at-92/

➤ Our newest OpenOlat release 20.1 is now ready for download
20.1 adds improvements to the new Course Planner module, features a redesigned Coaching Tool and adds overall new features and improvement, e.g. in the topic broker, the assessment scheduling, the catalog management, the blog comment subscription, the digital signing of badges and much more.

A Large Catalog of DA White Dwarf Characteristics Using SDSS and Gaia Observations
Nicole R. Crumpler, Vedant Chandra, Nadia L. Zakamska, Gautham Adamane Pallathadka, Stefan Arseneau, Nicola Gentile Fusillo, J. J. Hermes, Carles Badenes, Priyanka Chakraborty, Boris T. G\"ansicke, Sean Morrison, Hans-Walter Rix, Stephen P. Schmidt, Axel Schwope, Keivan G. Stassun

A Large Catalog of DA White Dwarf Characteristics Using SDSS and Gaia Observations
We present a catalog of 8545 and 19,257 unique DA white dwarfs observed in SDSS Data Release 19 and previous SDSS data releases, respectively. This is the largest catalog of both spectroscopic and photometric measurements of DA white dwarfs available to date, and we make this catalog and all code used to create it publicly available. We measure the apparent radial velocity, spectroscopic effective temperature and surface gravity, and photometric effective temperature and radius for all objects …

Pour one out for the legend Tom Lehrer, departed from us at age 97. What an amazing career, catalog, and human. https://mastodon.energy/@AkaSci@fosstodon.org/114927037902689482

Neural Post-Einsteinian Test of General Relativity with the Third Gravitational-Wave Transient Catalog
Yiqi Xie, Gautham Narayan, Nicol\'as Yunes
https://arxiv.org/abs/2510.02515

Neural Post-Einsteinian Test of General Relativity with the Third Gravitational-Wave Transient Catalog
Gravitational waves (GWs) from compact binaries are excellent probes of gravity in the strong- and dynamical-field regime. We report a test of general relativity (GR) with the third GW Transient Catalog (GWTC-3) using the recently developed neural post-Einsteinian framework, both on individual events and at the population level through hierarchical modeling. We find no significant violation of GR and place a constraint that, for the first time, efficiently covers non-GR theories characterized b…

Exploring Warm Jupiter Migration Pathways with Eccentricities. I. Catalog of Uniform Keplerian Fits to Radial Velocities of 200 Warm Jupiters
Marvin Morgan, Brendan P. Bowler, Quang H. Tran, Robert A. Wittenmyer, Duncan J. Wright, George Zhou, Tyler R. Fairnington
https://arxiv.org/abs/2510.02564

Exploring Warm Jupiter Migration Pathways with Eccentricities. I. Catalog of Uniform Keplerian Fits to Radial Velocities of 200 Warm Jupiters
Giant planets are expected to predominantly form beyond the water ice line and occasionally undergo inward migration. Unlike hot Jupiters, which can result from high-eccentricity tidal migration, warm Jupiters between 0.1-1 AU ($\approx$10--365 d) are in many ways more challenging to explain because they reside outside the tidal influence of their host stars. Warm Jupiters should therefore preserve traces of their origins as their eccentricities are directly related to their past interactions. …

Dark Energy Survey Year 6 Results: Redshift Calibration of the MagLim Lens Sample
G. Giannini, A. Alarcon, W. d'Assignies, G. M. Bernstein, M. A. Troxel, C. Chang, B. Yin, A. Amon, J. Myles, N. Weaverdyck, A. Porredon, D. Anbajagane, S. Avila, K. Bechtol, M. R. Becker, J. Blazek, M. Crocce, D. Gruen, M. Rodriguez-Monroy, C. S\'anchez, D. Sanchez Cid, I. Sevilla-Noarbe, M. Aguena, S. Allam, O. Alves, F. Andrade-Oliveira, D. Bacon, S. Bocquet, D. Brooks, R. Camilleri, A. Carner…

Dark Energy Survey Year 6 Results: Redshift Calibration of the MagLim++ Lens Sample
In this work, we derive and calibrate the redshift distribution of the MagLim++ lens galaxy sample used in the Dark Energy Survey Year 6 (DES Y6) 3x2pt cosmology analysis. The 3x2pt analysis combines galaxy clustering from the lens galaxy sample and weak gravitational lensing. The redshift distributions are inferred using the SOMPZ method - a Self-Organizing Map framework that combines deep-field multi-band photometry, wide-field data, and a synthetic source injection (Balrog) catalog. Key impr…

I seriously tried to join the ranks of the keyboard snobs, using a fancy mechanical keyboard. Special key switches! Movable keycaps! (needed so I could put END where I can find it). Fancy Color LEDs!
But after a year of constant typos, I finally gave up and went back to my Mac extended. Something about the super-low profile and the key separation works so much better for me.

CISA orders federal agencies to patch Sitecore zero-day following hacking reports https://therecord.media/cisa-orders-patch-for-sitecore-zero-day

WFC/WFD: Web Fuzzing Commons, Dataset and Guidelines to Support Experimentation in REST API Fuzzing
Omur Sahin, Man Zhang, Andrea Arcuri
https://arxiv.org/abs/2509.01612 https:/…

WFC/WFD: Web Fuzzing Commons, Dataset and Guidelines to Support Experimentation in REST API Fuzzing
Fuzzing REST APIs is an important research problem, with practical applications and impact in industry. As such, a lot of research work has been carried out on this topic in the last few years. However, there are three major issues that hinder further progress: how to deal with API authentication; how to catalog and compare different fault types found by different fuzzers; and what to use as case study to facilitate fair comparisons among fuzzers. To address these important challenges, we prese…

For anyone who wants to self-host their catalog of book video game or movie collections, Koillection is a good open-source option.
It can also be installed using Docker, which can speed up the setup process.
I've only been using this tool for a couple of days, and it looks promising. The only thing that doesn't seem very intuitive at the moment is the scraping system, although its developer has commented on GitHub that they are working on it.

On the Reliability of Sampling Strategies in Offline Recommender Evaluation
Bruno L. Pereira, Alan Said, Rodrygo L. T. Santos
https://arxiv.org/abs/2508.05398 https://

On the Reliability of Sampling Strategies in Offline Recommender Evaluation
Offline evaluation plays a central role in benchmarking recommender systems when online testing is impractical or risky. However, it is susceptible to two key sources of bias: exposure bias, where users only interact with items they are shown, and sampling bias, introduced when evaluation is performed on a subset of logged items rather than the full catalog. While prior work has proposed methods to mitigate sampling bias, these are typically assessed on fixed logged datasets rather than for the…

Gaia DR3 Open Cluster Cepheids: A Unified Catalog with Calibrated Period-Age and Period-Wesenheit Relations
Shunhong Deng, Zhihong He, Anbing Ren, Qian Cui, Xiaoyue Zhou, Liming Peng, Chenxin Wang, Ziang Chen, Yangping Luo, Kun Wang
https://arxiv.org/abs/2510.08390

The Nature of an Unidentified X-ray Source in the 7 Ms Chandra Deep Field-South Catalog
Quinn P. Sullivan, Zhibo Yu, William N. Brandt, Bin Luo, Fan Zou
https://arxiv.org/abs/2508.03656

The Nature of an Unidentified X-ray Source in the 7 Ms Chandra Deep Field-South Catalog
In the 7 Ms Chandra Deep Field-South catalog, only one source, XID 912, was highly significantly detected in X-rays but had no formally reported counterparts in the UV, optical, infrared, or radio bands. We identified its potential JWST and VLT VIMOS counterparts and measured the corresponding aperture photometry to construct its spectral energy distribution (SED). We fitted this SED using CIGALE. The results indicate that the source is most likely an off-nuclear ultraluminous X-ray source, rat…

The AI Model Risk Catalog: What Developers and Researchers Miss About Real-World AI Harms
Pooja S. B. Rao, Sanja \v{S}\'cepanovi\'c, Dinesh Babu Jayagopi, Mauro Cherubini, Daniele Quercia
https://arxiv.org/abs/2508.16672

The AI Model Risk Catalog: What Developers and Researchers Miss About Real-World AI Harms
We analyzed nearly 460,000 AI model cards from Hugging Face to examine how developers report risks. From these, we extracted around 3,000 unique risk mentions and built the \emph{AI Model Risk Catalog}. We compared these with risks identified by researchers in the MIT Risk Repository and with real-world incidents from the AI Incident Database. Developers focused on technical issues like bias and safety, while researchers emphasized broader social impacts. Both groups paid little attention to fr…

Wow, how did I sleep on the catalog of neat small pen-and-paper RPGs on Itch? So many interesting concepts there. Particularly stuck on "They should have sent a poet", which self-describes as "a solo journalling game about searching alone for the impossible among the stars, and desperately, hopefully, unfathomably holding on to your mission and humanity." Seems like a really cool concept, definitely got to try this out, as story-writing and worldbuilding is catnip to me w…

They Should Have Sent a Poet by Telling Games
A solo journalling game about searching among the stars, and desperately holding on to your mission and humanity.

Unveiling Galactic substructures with M Giant stars: A kinematic and chemical study based on LAMOST DR9, Gaia DR3 and APOGEE DR17
Longfei Ding, Jing Li, Xiang-Xiang Xue, Hao Tian, Zhengzhou Yan, Gang Zhao
https://arxiv.org/abs/2509.07744

Unveiling Galactic substructures with M Giant stars: A kinematic and chemical study based on LAMOST DR9, Gaia DR3 and APOGEE DR17
Based on the updated M giant star catalog selected from LAMOST DR9, we iden-tify substructures within the integrals-of-motion space through Friends-of-Friends cluster-ing algorithm. We obtain members belonging to several known substructures: the Sagittarius stream, Galactic Anticenter Substructure (GASS), Gaia-Enceladus-Sausage (GES), Splash, and the high-α disk. Furthermore, we also identify two groups which cannot be clearly asso-ciated with previously known substructures. Our findings confi…

i'm going through my records looking for ones to trade in or give away, found a mancini soundtrack that does not spark joy ("the great race"), sonny rollins' freedom suite doesn't do it to me, was eyeballing this dizzy gillespie savoy reissue but milt jackson and stuff smith make up for everything else on this record so it stays
#nowplaying

A Spatial Gap in the Sky Distribution of Fast Radio Burst Detections Coinciding with Galactic Plasma Overdensities
Swarali Shivraj Patil, Robert A. Main, Emmanuel Fonseca, Kyle McGregor, B. M. Gaensler, Charanjot Brar, Amanda M. Cook, Alice P. Curtin, Gwendolyn Eadie, Ronniy Joseph, Lordrick Kahinga, Victoria Kaspi, Afrokk Khan, Bikash Kharel, Adam E. Lanman, Calvin Leung, Kiyoshi W. Masui, Mason Ng, Kenzie Nimmo, Ayush Pandhi, Aaron B. Pearlman, Ziggy Pleunis, Mawson W. Sammons, Ketan…

A Spatial Gap in the Sky Distribution of Fast Radio Burst Detections Coinciding with Galactic Plasma Overdensities
We analyze the positional and morphological properties of about 3600 unique fast radio burst (FRB) sources reported in the second FRB catalog generated by the Canadian Hydrogen Intensity Mapping Experiment (CHIME) telescope. We find a two-dimensional dependence of FRB detections on sky position, and identify a significant absence of detections in a roughly circular region centered at Galactic coordinates (77.7$^\circ$, 0.9$^\circ$), spanning an area of 216.2 deg$^2$. This detection gap spatiall…

AgentDR Dynamic Recommendation with Implicit Item-Item Relations via LLM-based Agents
Mingdai Yang, Nurendra Choudhary, Jiangshu Du, Edward W. Huang, Philip S. Yu, Karthik Subbian, Danai Kourta
https://arxiv.org/abs/2510.05598

AgentDR Dynamic Recommendation with Implicit Item-Item Relations via LLM-based Agents
Recent agent-based recommendation frameworks aim to simulate user behaviors by incorporating memory mechanisms and prompting strategies, but they struggle with hallucinating non-existent items and full-catalog ranking. Besides, a largely underexplored opportunity lies in leveraging LLMs'commonsense reasoning to capture user intent through substitute and complement relationships between items, which are usually implicit in datasets and difficult for traditional ID-based recommenders to capture. …

Improvements in the Reconstruction of IceCube Realtime Alerts / IceCat-2 - Updated IceCube Event Catalog of Alert Tracks / Two 100 TeV #Neutrinos Coincident with the Seyfert Galaxy NGC 7469: https://arxiv.org/abs/2507.06957 / https://arxiv.org/abs/2507.06176 / https://iopscience.iop.org/article/10.3847/1538-4357/adb031/meta -> Source Desperately Sought: https://news.rub.de/english/2025-08-22-astrophysics-source-desperately-sought -> Detecting Neutrino Trajectories in Real Time: https://news.rub.de/english/press-releases/2025-08-22-cosmic-radiation-detecting-neutrino-trajectories-real-time

Jupiter Trojans spectrophotometry using Gaia DR3 catalog
Sonia Fornasier, Noemie El-Bez-Sebastien
https://arxiv.org/abs/2508.19872 https://arxiv.org/pdf/25…

Jupiter Trojans spectrophotometry using Gaia DR3 catalog
We present the spectral characterization of Jupiter Trojans using data from the Gaia mission DR3 spectral catalog (320 spectra of good quality) and from the literature. Gaia spectrophotometry is available in 16 spectrophotometric points covering the 0.33-1.08 $μ$m range. The final dataset includes 519 Trojans, 291 in the leading swarm (L4) and 228 in the trailing swarm (L5), which we classified using the Bus-Demeo and Mahlke classification schemes. The Trojan population is dominated by featu…

GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog
The LIGO Scientific Collaboration, et al.
https://arxiv.org/abs/2508.18080 https://

GWTC-4.0: An Introduction to Version 4.0 of the Gravitational-Wave Transient Catalog
The Gravitational-Wave Transient Catalog (GWTC) is a collection of short-duration (transient) gravitational wave signals identified by the LIGO-Virgo-KAGRA Collaboration in gravitational-wave data produced by the eponymous detectors. The catalog provides information about the identified candidates, such as the arrival time and amplitude of the signal and properties of the signal's source as inferred from the observational data. GWTC is the data release of this dataset and version 4.0 extends th…

Replaced article(s) found for astro-ph.CO. https://arxiv.org/list/astro-ph.CO/new
[1/2]:
- Validating the Galaxy and Quasar Catalog-Level Blinding Scheme for the DESI 2024 analysis
U. Andrade, et al.

A Catalog of Forty-two Heartbeat Stars Discovered in TESS Data
Min-Yu Li, Sheng-Bang Qian, Ai-Ying Zhou, Li-Ying Zhu, Wen-Ping Liao, Lin-Feng Chang, Xiang-Dong Shi, Fu-Xing Li, Qi-Bin Sun, Ping Li
https://arxiv.org/abs/2508.01156

A Catalog of Forty-two Heartbeat Stars Discovered in TESS Data
Heartbeat stars (HBSs) are ideal laboratories for studying the formation and evolution of binary stars in eccentric orbits and their internal tidal interactions. We present 42 new HBSs discovered based on TESS photometric data. Their light curves are modeled by using a corrected version of Kumar et al.'s model or the PHOEBE binary model code. Tidally excited oscillations (TEOs) are detected in ten systems, with most pulsation phases can be explained by the dominant being $l=2$, $m=0$, or $\pm2$…

A Comprehensive Study of the Energy and Redshift Distributions of the Fast Radio Burst Population Based on the First CHIME/FRB Catalog
Qing-Zhen Lei, Xin-Zhe Wang, Can-Min Deng
https://arxiv.org/abs/2507.23122

A Comprehensive Study of the Energy and Redshift Distributions of the Fast Radio Burst Population Based on the First CHIME/FRB Catalog
Fast radio bursts (FRBs) are brief, high-energy bursts of radio waves from extragalactic sources, and their origin remains an open question. In this paper, we perform a comprehensive analysis of the FRB population using the first CHIME/FRB catalog, focusing on their energy and redshift distribution, with careful consideration of selection effects. We investigate a range of models, including the Schechter function and the broken power-law function for the energy distribution, and several redshif…

Studying the gravitational-wave population without looking that FAR out
Noah E. Wolfe, Matthew Mould, Jack Heinzel, Salvatore Vitale
https://arxiv.org/abs/2510.06220 https://

Studying the gravitational-wave population without looking that FAR out
From catalogs of gravitational-wave transients, the population-level properties of their sources and the formation channels of merging compact binaries can be constrained. However, astrophysical conclusions can be biased by misspecification or misestimation of the population likelihood. Despite detection thresholds on the false-alarm rate (FAR) or signal-to-noise ratio (SNR), the current catalog is likely contaminated by noise transients. Further, computing the population likelihood becomes les…

Revised classification of the CHIME fast radio bursts with machine learning
Liang Liu, Hai-Nan Lin, Li Tang
https://arxiv.org/abs/2509.02645 https://arxiv.…

Revised classification of the CHIME fast radio bursts with machine learning
Fast radio bursts (FRBs) are short-duration and energetic radio transients of unknown origin. Observationally, they are commonly categorized into repeaters and non-repeaters. However, this binary classification may be influenced by observational limitations such as sensitivity and time coverage of telescopes. In this work, we employ unsupervised machine learning techniques to re-examine the CHIME/FRB catalog, with the goal of identifying intrinsic groupings in the FRB population without relying…

Evolution of the Physical Properties of the Most Massive Galaxies in Clusters and their Protohalos
Qingyang Li, Xiaohu Yang, Antonios Katsianis, Paola Popesso, Ilaria Marini, Y. Sophia Dai, Chengze Liu, Yipeng Jing, Jia-Sheng Huang, Marcin Sawicki
https://arxiv.org/abs/2509.05637

Evolution of the Physical Properties of the Most Massive Galaxies in Clusters and their Protohalos
We investigated the evolution of the physical properties of the brightest galaxies in clusters and their protohalos from $z = 4$ to $z = 0$. Galaxy clusters and groups are identified using a halo-based group finder applied to the COSMOS2020 galaxy catalog. We construct evolution chains from low redshift clusters to higher redshift groups via the abundance matching method. The region of protohalos corresponding to clusters is defined on the basis of a characteristic radius. Our analysis encompas…

The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog
HSC Collaboration, M. Aguena, S. Aiola, S. Allam, F. Andrade-Oliveira, D. Bacon, N. Bahcall, N. Battaglia, E. S. Battistelli, S. Bocquet, B. Bolliet, J. R. Bond, D. Brooks, E. Calabrese, J. Carretero, S. K. Choi, L. N. da Costa, M. Costanzi, W. Coulton, T. M. Davis, S. Desai, M. J. Devlin, S. Dicker, P. Doel, A. J. Duivenvoorden, J. Dunkley, S. Ferraro, B. Flaugher, J. Frieman, P. A. Gallardo, …

The Atacama Cosmology Telescope: DR6 Sunyaev-Zel'dovich Selected Galaxy Clusters Catalog
We present the results of a search for galaxy clusters in the Atacama Cosmology Telescope (ACT) Data Release 6 (DR6) microwave sky maps covering 16293 square degrees in three frequency bands, using data obtained over the lifetime of the project (2008-2022). We report redshifts and mass estimates for 9977 clusters detected via their Sunyaev-Zel'dovich (SZ) effect with signal-to-noise greater than 4 at a 2.4 arcminute filter scale. The catalog includes 1166 clusters at redshifts greater than 1, a…

The Non Parametric Reconstruction of Binary Black Hole Mass Evolution from GWTC-4.0 Gravitational Wave Catalog
Samsuzzaman Afroz, Suvodip Mukherjee
https://arxiv.org/abs/2509.25356

The Non Parametric Reconstruction of Binary Black Hole Mass Evolution from GWTC-4.0 Gravitational Wave Catalog
The distribution of binary black hole (BBH) masses and its evolution with redshift provide key insights into the different formation channels of the compact objects and their evolution with cosmic time and stellar properties such stellar metallicity and star formation rate history. We present a non parametric, model-independent joint reconstruction of the redshift evolution of BBH mass distribution from gravitational wave (GW) catalog GWTC-4.0 from the fourth observation of LIGO-Virgo-KAGRA (LV…

A catalog of near-IR absolute magnitudes of Solar System small bodies
Alvaro Alvarez-Candal, Juan Luis Rizos, Milagros Colazo, Ren\'e Duffard, David Morate, Valerio Carruba, J\'ulio I. B. Camargo, Andr\'es G\'omez-Toribio
https://arxiv.org/abs/2507.22259

A catalog of near-IR absolute magnitudes of Solar System small bodies
Context. Phase curves of small bodies are useful tools to obtain their absolute magnitudes and phase coefficients. The former relates to the object's apparent brightness, while the latter relates to how the light interacts with the surface. Data from multi-wavelength photometric surveys, which usually serendipitously observe small bodies, are becoming the cornerstone of large statistical studies of the Solar System. Nevertheless, to our knowledge, all studies have been carried out in visible wa…

Classification for 969 double-mode RR Lyrae stars from Zwicky Transient Facility
Jianxing Zhang, Xiaodian Chen, Shu Wang, Jiyu Wang, Licai Deng
https://arxiv.org/abs/2510.07705 …

Classification for 969 double-mode RR Lyrae stars from Zwicky Transient Facility
RR Lyrae (RRL) variable stars are cornerstone distance indicators. In particular, double-mode RR Lyrae (RRd) stars enable period--luminosity relations (PLRs) that are less sensitive to metallicity, reducing systematic biases in distance measurements. However, their utility has been limited by a global sample of only $\sim$3,000 objects. We develop an automated RRd-screening pipeline and apply it to a cross-matched sample between the Gaia DR3 RRL catalog and ZTF DR22 time-series photometry. The …

Double White Dwarf Binaries in SDSS-V DR19 : A catalog of DA white dwarf binaries and constraints on the binary population
Gautham Adamane Pallathadka, Vedant Chandra, Nadia L. Zakamska, Nicole R. Crumpler, Stefan M. Arseneau, Kareem El-Badry, Boris T. G\"aensicke, Yossef Zenati, J. J. Hermes, Axel D. Schwope, Carles Badenes, Nicola Pietro Gentile Fusillo, Sean Morrison, Tim Cunningham, Priyanka Chakraborty, Gagik Tovmasian, Dmitry Bizyaev, Kaike Pan, Scott F. Anderson, Sebastian …

Double White Dwarf Binaries in SDSS-V DR19 : A catalog of DA white dwarf binaries and constraints on the binary population
The fifth-generation Sloan Digital Sky Survey (SDSS-V) includes the first large-scale spectroscopic survey of white dwarfs (WDs) in the era of Gaia parallaxes. SDSS-V collects multiple exposures per target, making it ideal for binary detection. We present a search for hydrogen atmosphere (DA) double white dwarf (DWD) binaries in this rich dataset. We quantify radial velocity variations between sub-exposures to identify binary candidates, and also measure the orbital period for a subset of DWD b…

Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison
Androniki Dimitriou, Daniel G. Figueroa, Peera Simakachorn, Bryan Zaldivar
https://arxiv.org/abs/2508.05395

Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison
We present a catalog of gravitational wave background (GWB) signal templates from cosmic-string networks, based on relevant models proposed in the literature. We classify templates as conventional, based on standard cosmology and Nambu-Goto results (VOS and BOS), and beyond conventional, based on modifications of a) the loop number density (LRS, super, metastable, current-carrying strings), b) the expansion history (non-standard cosmologies, extra degrees of freedom, either thermal or secluded)…

GWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run
The LIGO Scientific Collaboration, The Virgo Collaboration, the KAGRA Collaboration
https://arxiv.org/abs/2508.18082

GWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run
Version 4.0 of the Gravitational-Wave Transient Catalog (GWTC-4.0) adds new candidates detected by the LIGO, Virgo, and KAGRA observatories through the first part of the fourth observing run (O4a: 2023 May 24 15:00:00 to 2024 January 16 16:00:00 UTC) and a preceding engineering run. In this new data, we find 128 new compact binary coalescence candidates that are identified by at least one of our search algorithms with a probability of astrophysical origin $p_{\rm astro} \geq 0.5$ and that are n…

Operational Validation of Large-Language-Model Agent Social Simulation: Evidence from Voat v/technology
Aleksandar Toma\v{s}evi\'c, Darja Cvetkovi\'c, Sara Major, Slobodan Maleti\'c, Miroslav An{\dj}elkovi\'c, Ana Vrani\'c, Boris Stupovski, Du\v{s}an Vudragovi\'c, Aleksandar Bogojevi\'c, Marija Mitrovi\'c Dankulov
https://…

Operational Validation of Large-Language-Model Agent Social Simulation: Evidence from Voat v/technology
Large Language Models (LLMs) enable generative social simulations that can capture culturally informed, norm-guided interaction on online social platforms. We build a technology community simulation modeled on Voat, a Reddit-like alt-right news aggregator and discussion platform active from 2014 to 2020. Using the YSocial framework, we seed the simulation with a fixed catalog of technology links sampled from Voat's shared URLs (covering 30+ domains) and calibrate parameters to Voat's v/technolo…

The Hidden Life of Stars: Embedded Beginnings to AGB Endings in the PHANGS-JWST Sample. I. Catalog of Mid-IR Sources
Hamid Hassani, Erik Rosolowsky, Adam K. Leroy, Karin Sandstrom, M\'ed\'eric Boquien, David A. Thilker, Bradley C. Whitmore, Gagandeep S. Anand, Ashley T. Barnes, Yixian Cao, Ryan Chown, Enrico Congiu, Daniel A. Dale, Oleg V. Egorov, Ivan Gerasimov, Kathryn Grasha, Remy Indebetouw, Janice C. Lee, Fu-Heng Liang, Daniel Maschmann, Sharon E. Meidt, Elias K. Oakes, Is…

The Hidden Life of Stars: Embedded Beginnings to AGB Endings in the PHANGS-JWST Sample. I. Catalog of Mid-IR Sources
We present a multiwavelength catalog of mid-infrared-selected compact sources in 19 nearby galaxies, combining JWST NIRCam/MIRI, HST UV-optical broadband, H$α$ narrow-band, and ALMA CO observations. We detect 24,945 compact sources at 21 $μ$m and 55,581 at 10 $μ$m. Artificial star tests show 50% completeness limits of $\sim$5 $μ$Jy for the 10 $μ$m catalog, and $\sim$24 $μ$Jy for the 21 $μ$m catalog. We find that 21 $μ$m compact sources contribute $\sim$20% of the total galaxy emission i…

Investigations of MWISP Clumps: 13CO Clump Source Catalog and Physical Properties
Yu Jiang, Qing-Zeng Yan, Ji Yang, Sheng Zheng, Xuepeng Chen, Yang Su, Zhibo Jiang, Zhiwei Chen, Xin Zhou, Yao Huang, Xiaoyu Luo, Haoran Feng, De-Jian Liu
https://arxiv.org/abs/2509.01955

Investigations of MWISP Clumps: 13CO Clump Source Catalog and Physical Properties
We present the first comprehensive catalogs of $^{13}$CO clumps from the Milky Way Imaging Scroll Painting (MWISP) project. By developing an equivalent global detection scheme integrated with the FacetClumps algorithm, we successfully extract 71,661 molecular clumps across a high-resolution $^{13}$CO data cube spanning 2310 deg$^2$ from the MWISP Phase I survey. To determine accurate distances, we design an automatic hierarchical distance decision method using signal regions as fundamental obje…

An Efficient Shift-and-Stack Algorithm Applied to Detection Catalogs
Steven Stetzler, Mario Juri\'c, Pedro H. Bernardinelli, Dino Bekte\v{s}evi\'c, Colin Orion Chandler, Andrew J. Connolly, Fred C. Adams, Cesar Fuentes, David W. Gerdes, Matthew J. Holman, Hsing Wen Lin, Larissa Markwardt, Andrew McNeill, Michael Mommert, Kevin J. Napier, William J. Oldroyd, Matthew J. Payne, Andrew S. Rivkin, Luis E. Salazar-Manzano, Hilke Schlichting, Scott S. Sheppard, Dallin Spencer, Ryder S…

An Efficient Shift-and-Stack Algorithm Applied to Detection Catalogs
The boundary of solar system object discovery lies in detecting its faintest members. However, their discovery in detection catalogs from imaging surveys is fundamentally limited by the practice of thresholding detections at signal-to-noise (SNR) $\geq 5$ to maintain catalog purity. Faint moving objects can be recovered from survey images using the shift-and-stack algorithm, which coadds pixels from multi-epoch images along a candidate trajectory. Trajectories matching real objects accumulate s…

Combined tracer analysis for DESI 2024 BAO
D. Valcin, M. Rashkovetskyi, H. Seo, F. Beutler, P. McDonald, A. de Mattia, A. J. Rosado-Mar\'in, A. J. Ross, N. Padmanabhan, J. Aguilar, S. Ahlen, U. Andrade, D. Bianchi, D. Brooks, E. Chaussidon, S. Chen, X. Chen, T. Claybaugh, A. Cuceu, K. S. Dawson, A. de la Macorra, Biprateep Dey, Z. Ding, P. Doel, S. Ferraro, A. Font-Ribera, J. E. Forero-Romero, E. Gazta\~naga, S. Gontcho A Gontcho, G. Gutierrez, C. Hahn, K. Honscheid, C. Howlett, M.…

Combined tracer analysis for DESI 2024 BAO
This paper demonstrates how the Dark Energy Spectroscopic Instrument (DESI) Data Release 1 (DR1) and future baryon acoustic oscillations (BAO) analyses can optimally combine overlapping tracers (galaxies of distinct types) in the same redshift range. We make a unified catalog of Luminous Red Galaxies (LRGs) and Emission Line Galaxies (ELGs) in the redshift range 0.8 < z < 1.1 and investigate the impact on the BAO constraints. DESI DR1 contains ~30% of the final DESI LRG sample and less than 25%…

Planet Earth in reflected and polarized light -- III. Modeling and analysis of a decade-long catalog of Earthshine observations
Giulia Roccetti, Michael F. Sterzik, Claudia Emde, Mihail Manev, Stefano Bagnulo, Julia V. Seidel
https://arxiv.org/abs/2509.13415

Planet Earth in reflected and polarized light - III. Modeling and analysis of a decade-long catalog of Earthshine observations
Earthshine observations offer a unique opportunity to study Earth as an exoplanet seen from the Moon. As the Sun-Earth-Moon geometry changes, Earth can be observed as a spatially unresolved exoplanet at different phase angles, providing important context for future observations of Earth-like exoplanets. Here, we present a catalog of Earthshine polarization spectra obtained with FORS2 on the VLT, covering diverse scenes, surface conditions, cloud properties, and weather patterns for over a decad…

A Comparative Study of Halo Mass Estimates from Group Catalogs and Lensing Signals
Xinyue Chen, Weiwei Xu, Ran Li, Huanyuan Shan, Ji Yao, Chunxiang Wang
https://arxiv.org/abs/2507.20294

A Comparative Study of Halo Mass Estimates from Group Catalogs and Lensing Signals
We compare halo mass estimates from three galaxy group catalogs (redMaPPer, Yang21, and Zou21) with those derived from gravitational lensing measurements. Each catalog employs distinct methodologies, including mass-richness relations, abundance matching, and luminosity-based calibration. A linear correlation is observed between catalog-estimated and lensing-derived masses. The redMaPPer catalog shows the best agreement, especially for lower-redshift groups, with minor deviations in higher-redsh…

A Catalog of M&M Eclipsing Binaries with TESS
Dominic Oddo, Diana Dragomir, Brian P. Powell, Veselin B. Kostov, Te Han
https://arxiv.org/abs/2508.13941 https://

A Catalog of M&M Eclipsing Binaries with TESS
We present a catalog of 1292 low-mass (M&M) short-period eclipsing binaries observed by the TESS mission. Eclipsing binaries are useful for many aspects of stellar astrophysics, including calibrating stellar models. Catalogs of eclipsing binary properties provide context for population-level inferences. In this work, we present our selection criteria for our catalog, along with steps taken to characterize both the orbital and physical properties of our EBs. We further detail crucial steps in ve…

Verification of the Black Hole Area Law with GW230814
Shao-Peng Tang, Hai-Tian Wang, Yin-Jie Li, Yi-Zhong Fan
https://arxiv.org/abs/2509.03480 https://arxi…

Verification of the Black Hole Area Law with GW230814
We present observational confirmation of Hawking's black-hole area theorem using the newly released gravitational-wave data from the GWTC-4 catalog. We have analyzed two high signal-to-noise ratio binary black hole (BBH) merger events, including GW230814 and GW231226, from the first part of the LIGO-Virgo-KAGRA O4 run, and measured the (total) horizon area of the black holes before and after merger. For both events, the horizon area of the remnant black hole is found to be greater than the tota…

Discovery of 63 New Young Asteroid Families
David Nesvorny, David Vokrouhlicky, Miroslav Broz, Fernando V. Roig
https://arxiv.org/abs/2508.00753 https://ar…

Discovery of 63 New Young Asteroid Families
We searched for young asteroid families -- those with ages t_age < 10 Myr and at least three members -- using the proper element catalog from Nesvorny et al. (2024). Our approach employed the Hierarchical Clustering Method (HCM) in a five-dimensional space of proper orbital elements: semimajor axis, eccentricity, inclination, proper nodal longitude, and proper perihelion longitude. The proper longitudes were calculated for various times in the past. Any convergence of these angles at times t < …

Mining the Alerts: A Preliminary Catalog of Compact Binaries from the Fourth Observing Run
Aleyna Aky\"uz, Alex Correia, Jada Garofalo, Keisi Kacanja, Vikas Jadhav Y, Labani Roy, Kanchan Soni, Hung Tan, Collin D. Capano, Alexander H. Nitz
https://arxiv.org/abs/2507.08778

Mining the Alerts: A Preliminary Catalog of Compact Binaries from the Fourth Observing Run
We present a preliminary catalog of compact binary merger candidates from the ongoing fourth observing run (O4) of Advanced LIGO, Virgo, and KAGRA, based on an analysis of public alerts distributed through GraceDB as of May 2025. We developed and applied methods to estimate the source-frame chirp mass for each candidate by utilizing information from public data products, including source classification probabilities, sky localizations, and observatory status. Combining our O4 analysis with prev…

Young Stellar Objects in the Carina nebula: Near-Infrared variability and spectroscopy
Jura Borissova, Radostin Kurtev, Josemanuel Escobar, Javier Alonso-Garc\'ia, Nicolas Medina, Javier Osses, Zhen Guo, Philip Lucas, Michael Kuhn, Dante Minniti, Kevin R. Covey, Roberto Saito, Francisco F\"orster
https://arxiv.org/abs/2507.20086…

Young Stellar Objects in the Carina nebula: Near-Infrared variability and spectroscopy
We present a catalog of 652 young stellar objects (YSOs) in the Carina star-forming region. The catalog was constructed by combining near-infrared Ks-band variability from the VISTA Variables in the Via Lactea eXtended survey and medium-resolution H-band spectroscopy from APOGEE-2, Sloan Digital Sky Survey IV (SDSS-IV). Variability analysis of 6.35 million sources identified 606 variable stars. The classification of the spectral lines by semisupervised K-means clustering of 704 stars, refined t…

Globular Clusters in the Galaxy Cluster MACS0416 at z = 0.397
Jessica M. Berkheimer, Rogier A. Windhorst, William E. Harris, Anton M. Koekemoer, Timothy Carleton, Seth H. Cohen, Rolf A. Jansen, Dan Coe, Jose Diego, Christopher J. Conselice, Simon P. Driver, Brenda L. Frye, Norman A. Grogin, Kate Hartman, Tyler R. Hinrichs, Benne W. Holwerda, Patrick S. Kamieneski, Kaitlyn E. Keatley, William C. Keel, Ray A. Lucas, Madeline A. Marshall, Mario Nonino, Nor Pirzkal, Massimo Ricotti, Clayto…

Globular Clusters in the Galaxy Cluster MACS0416 at z = 0.397
We present a photometric analysis of globular clusters (GCs) in the massive galaxy cluster MACS J0416.1-2403 (z = 0.397) using deep JWST/NIRCam imaging from the PEARLS program. PSF photometry in the F090W, F115W, F150W, and F200W filters was performed with DAOPHOT, yielding a catalog of 2,971 unresolved, point-like sources consistent with a GC population. Artificial star tests indicate 50% completeness at F200W = 30.63 AB mag and 80% completeness at F200W = 30.36 AB mag. Color-magnitude diagram…

High Frequency Peak Radio Sources from the AT20G Catalogue and Their Radio Spectra
Elena Majorova, Olga Zhelenkova
https://arxiv.org/abs/2508.03462 https://

High Frequency Peak Radio Sources from the AT20G Catalogue and Their Radio Spectra
A sample of high-frequency peaker (HFP) candidates was formed from the AT20G catalog radio sources with spectral indices of the optically thick emission region $α_{below}$ exceeding +0.5. A study of the spectral properties of the sources in the sample, which included 269 radio sources, was performed. The spectra of the sources were constructed and the spectral indices below $α_{below}$ and above the peak $α_{above}$, the peak frequency $ν_{obs}$, the flux density at the peak frequency $S_{p…

Identifying potential binary neutron star merger events from the Fermi GBM Gamma-Ray Burst Catalog
I. F. Giudice, L. Izzo, R. Martone, M. T. Botticella, E. Cappellaro, R. De Rosa, M. Della Valle
https://arxiv.org/abs/2507.18258

Identifying potential binary neutron star merger events from the Fermi GBM Gamma-Ray Burst Catalog
Short gamma-ray bursts are expected to be associated with compact object mergers, such as binary neutron star or neutron star-black hole systems, and are key high-energy multimessenger events. The detection of GRB 170817A, coinciding with the gravitational wave signal GW170817 from a BNS merger, confirmed the link between sGRBs and compact object mergers. Similarly, GRB 150101B displayed remarkable similarities to GRB 170817A, further supporting its association with compact binary mergers. The …

A Catalog of Galactic Supernova Remnants and Supernova Remnant Candidates from the EMU/POSSUM Radio Sky Surveys. I
B. D. Ball, R. Kothes, E. Rosolowsky, C. Burger-Scheidlin, M. D. Filipovi\'c, S. Lazarevi\'c, Z. J. Smeaton, W. Becker, E. Carretti, B. M. Gaensler, A. M. Hopkins, D. Leahy, M. Tahani, J. L. West, C. S. Anderson, S. Loru, Y. K. Ma, N. M. McClure-Griffiths, M. J. Micha{\l}owski

A Catalog of Galactic Supernova Remnants and Supernova Remnant Candidates from the EMU/POSSUM Radio Sky Surveys. I
We use data from the EMU (Evolutionary Map of the Universe) and POSSUM (Polarization Sky Survey of the Universe's Magnetism) radio southern sky surveys, conducted with the Australian Square Kilometre Array Pathfinder (ASKAP), to compile a catalogue of Galactic supernova remnants (SNRs) and candidate SNRs within the region of $277.5^\circ \leq \ell \leq 311.7^\circ$ Galactic longitude, $|b| \leq 5.4^\circ$ Galactic latitude, as well as an additional field along the Galactic plane, appr…

GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation
The LIGO Scientific Collaboration, the Virgo Collaboration, the KAGRA Collaboration
https://arxiv.org/abs/2509.04348

GWTC-4.0: Constraints on the Cosmic Expansion Rate and Modified Gravitational-wave Propagation
We analyze data from 142 of the 218 gravitational-wave (GW) sources in the fourth LIGO-Virgo-KAGRA Collaboration (LVK) Gravitational-Wave Transient Catalog (GWTC-4.0) to estimate the Hubble constant $H_0$ jointly with the population properties of merging compact binaries. We measure the luminosity distance and redshifted masses of GW sources directly; in contrast, we infer GW source redshifts statistically through i) location of features in the compact object mass spectrum and merger rate evolu…

The Role of Asteroseismology in Understanding Mass Loss in Red Giants
Sibel \"Ortel, Mutlu Y{\i}ld{\i}z
https://arxiv.org/abs/2510.02931 https://arxiv…

The Role of Asteroseismology in Understanding Mass Loss in Red Giants
Red giant stars play a key role in advancing our understanding of stellar mass loss. However, its initial mass and the amount of mass lost during this phase remain uncertain. In this study, we investigate the asteroseismic signatures of mass loss and the parameters that influence it. We examine six stars identified as red giant branch (RGB) stars in the APOKASC-2 catalog. Assuming these stars are on their first ascent of the RGB, we construct interior models. The resulting model ages are signif…

Residual Test for the Third Gravitational-Wave Transient Catalog
Dicong Liang, Ning Dai, Yingjie Yang
https://arxiv.org/abs/2509.14924 https://arxiv.org/pd…

Residual Test for the Third Gravitational-Wave Transient Catalog
The residual test is commonly used to check the agreement between the gravitational wave signal and the theoretical waveform template. The basic idea of the residual test is to subtract the best-fit waveform from the data and then check whether the remaining data (i.e., the residuals) are consistent with the instrumental noise or not. We apply the Kolmogorov-Smirnov test, the Anderson-Darling test and the chi-squared test as goodness-of-fit test to examine the residuals of events in the third g…

Exploring IceCube Neutrino Alerts with the HAWC Observatory
Ian Herzog
https://arxiv.org/abs/2508.00090 https://arxiv.org/pdf/2508.00090

Exploring IceCube Neutrino Alerts with the HAWC Observatory
While much work has gone into associating neutrino emission with various sources, very few sources have emerged. With the recent publication of IceCube Event Catalog (IceCat-1), the IceCube neutrino observatory has released a list of the most promising astrophysical neutrino events since operations began in 2010. Using the archival data from the High Altitude Water Cherenkov (HAWC) gamma-ray observatory, we perform a coincidence search for gamma rays and neutrinos using a Bayesian Block algorit…

An analysis of the solar differential rotation in solar cycle No. 19 (1954-1964) determined using Kanzelhoehe sunspot group positions
Ivana Poljancic Beljan, Luka Sibenik, Tomislav Jurkic, Klaudija Loncaric, Rajka Jurdana-Sepic, Damir Hrzina, Werner Poetzi, Roman Brajsa, Astrid M. Veronig, Arnold Hanslmeier
https://arxiv.org/abs/2510.03002…

An analysis of the solar differential rotation in solar cycle No. 19 (1954-1964) determined using Kanzelhoehe sunspot group positions
We study solar differential rotation (DR) for solar cycle No. 19 (1954-1964) by tracing sunspot groups on the sunspot drawings of Kanzelhoehe Observatory for Solar and Environmental Research (KSO). Our aim is to extend previous DR analysis from the KSO data (1964-2016) to the years prior to 1964 to create a catalog of sunspot group positions and DR parameters from KSO sunspot drawings and white light images. Synodic angular rotation velocities were first determined using the daily shift (DS) an…

A catalog to unite them all: REGALADE, a revised galaxy compilation for the advanced detector era
Hugo Tranin, Nadejda Blagorodnova, Marco A. G\'omez-Mu\~noz, Maxime Wavasseur, Paul J. Groot, Lloyd Landsberg, Fiorenzo Stoppa, Steven Bloemen, Paul M. Vreeswijk, Dani\"elle L. A. Pieterse, Jan van Roestel, Simone Scaringi, Sara Faris
https://

A catalog to unite them all: REGALADE, a revised galaxy compilation for the advanced detector era
Many applications in transient science, gravitational wave follow-up, and galaxy population studies require all-sky galaxy catalogs with reliable distances, extents, and stellar masses. However, existing catalogs often lack completeness beyond $\sim 100$ Mpc, suffer from stellar contamination, or do not provide homogeneous stellar mass estimates and size information. Our goal is to build a high-purity, high-completeness, all-sky galaxy catalog out to 2,000 Mpc, specifically designed to support …

Rotation Periods for Stars in Open Cluster NGC 6819 From Kepler IRIS Light Curves
Sabina Sagynbayeva, Isabel L. Colman, Will M. Farr
https://arxiv.org/abs/2510.02255 https://

Rotation Periods for Stars in Open Cluster NGC 6819 From Kepler IRIS Light Curves
We present an updated catalog of stellar rotation periods for the 2.5 Gyr open cluster NGC 6819 using the Kepler IRIS light curves from superstamp data. Our analysis uses Gaussian Process modeling to extract robust rotation signals from image subtraction light curves, allowing us unprecedented data access and measurement precision in the crowded cluster field. After applying stringent quality and contamination cuts, we identify 271 reliable rotation periods, representing by far the largest samp…

Planetary Nebulae in the eROSITA eRASS1 catalog
Haoyang Yuan, Martin A. Guerrero, Quentin Parker, Rodolfo Montez Jr
https://arxiv.org/abs/2508.12895 https://

Planetary Nebulae in the eROSITA eRASS1 catalog
Some planetary nebulae (PNe) host X-ray-emitting hot bubbles shaped by stellar wind interactions and/or harbor X-ray-emitting central stars due to accretion, shocks within their fast stellar winds, or even chromospheric emission from binary companions. In both cases, the properties of the X-ray emission critically probe late-stages of stellar evolution for such low- and intermediate-mass stars. While extant Chandra and XMM-Newton observations have detected X-ray emission in PNe, the numbers kno…

The oldest Milky Way stars: New constraints on the age of the Universe and the Hubble constant
Elena Tomasetti, Cristina Chiappini, Samir Nepal, Michele Moresco, Carmela Lardo, Andrea Cimatti, Friedrich Anders, Anna B. A. Queiroz, Guilherme Limberg
https://arxiv.org/abs/2509.02692

The oldest Milky Way stars: New constraints on the age of the Universe and the Hubble constant
We exploit the most robust, old, and cosmology-independent age estimates of individual stars from Gaia DR3 to place a lower bound on the age of the Universe, $t_U$. These constraints can serve as an anchor point for any cosmological model, providing an upper limit to the Hubble constant $H_0$. We consider the stellar age catalog of arXiv:2402.00561, selecting 3,000 of the oldest and most robustly measured main sequence turn-off (MSTO) and subgiant branch (SGB) stars, with ages $>12.5$ Gyr and a…

A sample of giant radio sources from the NVGRC catalog
Olga Zhelenkova, Milena Khoruzhenko
https://arxiv.org/abs/2508.00585 https://arxiv.org/pdf/2508.0058…

Alignment of spiral and elliptical galaxies from Siena Galaxy Atlas with filaments
Yuvraj Muralichandran, Noam I. Libeskind, Elmo Tempel
https://arxiv.org/abs/2509.02062 https:/…

Alignment of spiral and elliptical galaxies from Siena Galaxy Atlas with filaments
The properties of galaxies are known to have been influenced by the large-scale structures that they inhabit. Theory suggests that galaxies acquire angular momentum during the linear stage of structure formation, and hence predict alignments between the spin of halos and the nearby structures of the cosmic web. In this study, we use the largest catalog of galaxies publicly available - the Siena Galaxy Atlas - to study the alignment of the spin normals of elliptical and spiral galaxies with fila…

X-ray emission of F-type stars and its analogy with G-type stars
Takuma Shimura, Ikuyuki Mitsuishi, Masanobu Kunitomo, Shinsuke Takasao, Yuki A. Tanaka, Koki Sakuta
https://arxiv.org/abs/2509.18677

Extensive Analysis of gamma-Ray Periodicity in Jetted AGN from the 4FGL Catalog Using Fermi-LAT Observations
P. Pe\~nil, A. Dom\'inguez, S. Buson, M. Ajello, S. Adhikari, A. Rico
https://arxiv.org/abs/2509.14013

Extensive Analysis of gamma-Ray Periodicity in Jetted AGN from the 4FGL Catalog Using Fermi-LAT Observations
The quest to uncover periodic patterns within the $γ$-ray emissions of jetted active galactic nuclei (AGN) has recently emerged as a focal point in astrophysics. One of the primary challenges has been the necessity for prolonged exposures in the $γ$-ray energy band. In our investigation, we leverage 12 years' worth of observations from the \textit{Fermi}-LAT to systematically explore periodicity across 1492 jetted AGN cataloged in 4FGL, representing the largest sample analyzed to date. Our an…

Beyond the Nyquist frequency: Asteroseismic catalog of undersampled Kepler late subgiants and early red giants
B. Liagre, R. A. Garc\'ia, S. Mathur, M. H. Pinsonneault, A. Serenelli, J. C. Zinn, K. Cao, D. Godoy-Rivera, J. Tayar, P. G. Beck, D. H. Grossmann, D. B. Palakkatharappil
https://arxiv.org/abs/2508.15654

Beyond the Nyquist frequency: Asteroseismic catalog of undersampled Kepler late subgiants and early red giants
Subgiants and early red giants are crucial for studying the first dredge-up, a key evolutionary phase where the convective envelope deepens, mixing previously interior-processed material and bringing it to the surface. Yet, very few have been seismically characterized with Kepler because their oscillation frequencies are close to the 30 minute sampling frequency of the mission. We developed a new method as part of the new PyA2Z code to identify super-Nyquist oscillators and infer their global s…

On type 1 active galactic nuclei with double-peaked [O~{\sc iii}]. II. properties of long-term optical variability
Qi Zheng, Xingyv Zhu, Xueguang Zhang, Qirong Yuan
https://arxiv.org/abs/2508.00672

On type 1 active galactic nuclei with double-peaked [O~{\sc iii}]. II. properties of long-term optical variability
Double-peaked \oiii~profiles could potentially indicate kiloparsec-scale dual AGNs. We analyze long-term optical light curves of 35 type 1 AGNs with such features from our recent catalog in Zheng et al. (2025). These light curves are obtained from the Catalina Sky Survey and modeled using a Damped Random Walk (DRW) process. A control sample of 210 normal type 1 AGNs matched in redshift, intrinsic luminosity, and black hole mass is also studied. If the double-peaked \oiii~are caused by two type …

A High Incidence of Mid-infrared Variability in Local Ultraluminous Infrared Galaxies
Shun Hatano, Masatoshi Imanishi, Takanobu Kirihara, Takashi Yamamoto, Yuxing Zhong, Chenghao Zhu
https://arxiv.org/abs/2509.02254

A High Incidence of Mid-infrared Variability in Local Ultraluminous Infrared Galaxies
We explore mid-infrared (MIR) variability in local ultraluminous infrared galaxies (ULIRGs; infrared luminsoity $L_{\rm IR}>10^{12}\ L_\odot$) utilizing the $\sim$11 years of photometry from the NEOWISE multi-epoch catalog of {\it Wide-field Infrared Survey Explorer} ({\it WISE}). We identify 30 variable ULIRGs with statistically significant MIR variability. The variability is observed on timescales of a few years, implying that the MIR-emitting regions are compact ($\lesssim 1$ pc). The differ…

Simulating Spectral Confusion in SPHEREx Photometry and Redshifts
Zhaoyu Huai, James J. Bock, Yun-Ting Cheng, Jean Choppin de Janvry, Sean Bruton, James R. Cheshire IV, Brendan P. Crill, Olivier Dor\'e, Spencer W. Everett, Andreas L. Faisst, Richard M. Feder, Woong-Seob Jeong, Yongjung Kim, Bomee Lee, Daniel C. Masters
https://arxiv.or…

Simulating Spectral Confusion in SPHEREx Photometry and Redshifts
We model the impact of source confusion on photometry and the resulting spectrophotometric redshifts for SPHEREx, a NASA Medium-Class Explorer that is carrying out an all-sky near-infrared spectral survey. Spectral confusion from untargeted background galaxies degrades sensitivity and introduces a spectral bias. Using interpolated spectral energy distributions (SEDs) from the COSMOS2020 catalog, we construct a Monte Carlo library of confusion spectra that captures the cumulative impact from fai…

Crowdsourcing Star-Formation Research and the Power of Participatory Science
Grace Wolf-Chase (Planetary Science Institute), Charles Kerton (Iowa State University), Kathryn Devine (The College of Idaho), Nicholas Larose (Iowa State University), Maya Coleman (The College of Idaho)
https://arxiv.org/abs/2508.14188

Crowdsourcing Star-Formation Research and the Power of Participatory Science
We review participatory science programs that have contributed to the understanding of star formation. The Milky Way Project (MWP), one of the earliest participatory science projects launched on the Zooniverse platform, produced the largest catalog of ``bubbles'' associated with feedback from hot young stars to date, and enabled the identification of a new class of compact star-forming regions (SFRs) known as ``yellowballs'' (YBs). The analysis of YBs through their infrared colors and catalog c…

Lensed quasars in CatNorth I. Wide-separation candidates
Di Wu, Zizhao He, Nan Li, Shenzhe Cui, Yuming Fu, XueBing Wu, Dan Qiu
https://arxiv.org/abs/2509.17071 https://

Lensed quasars in CatNorth I. Wide-separation candidates
Wide-separation lensed quasars (WSLQs) are a rare subclass of strongly lensed quasars produced by massive galaxy clusters. They provide valuable probes of dark-matter halos and quasar host galaxies. However, only about ten WSLQ systems are currently known, which limits further studies. To enlarge the sample from wide-area surveys, we developed a catalog-based pipeline and applied it to the CatNorth database, a catalog of quasar candidates constructed from Gaia DR3. CatNorth contains 1,545,514 q…

LOFAR 58 MHz Legacy Survey of the 3CRR Catalog
J. M. Boxelaar, F. De Gasperin, M. J. Hardcastle, J. H. Croston, L. K. Morabito, R. J. van Weeren, H. Edler
https://arxiv.org/abs/2509.15115

LOFAR 58 MHz Legacy Survey of the 3CRR Catalog
The Low Frequency Array (LOFAR) is uniquely able to perform deep, 15" resolutions imaging at frequencies below 100 MHz. Observations in this regime, using the Low Band Antenna (LBA) system, are significantly affected by instrumental and ionospheric distortions. Recent developments in calibration techniques have enabled routine production of high-fidelity images at these challenging frequencies. The aim of this paper is to obtain images of the radio sources included in the Third Cambridge catalo…