Tootfinder

Farewell, My Little Workflow Engine - #dotNet
https://improveandrepeat.com/2025/05/farewell-my-little-workflow-engine/

Farewell, My Little Workflow Engine - Improve & Repeat
None

I may well have aphantasia to a degree in waking life as I cannot visualize voluntarily.
https://aethermug.com/posts/i-do-not-remember-my-life-and-it-s-fine

"Like two young children fighting like crazy in the park."
"Sometimes you're better off letting them fight for a while..."
#trump #musk

I did something for #PrideMonth this year!
See more on the NG post: https://www.newgrounds.com/art/view/jamestdg/ng-pride-2025

NG Pride 2025

In May, Microsoft launched Signal, a 120-page print magazine focused on its tech and distributed to business leaders every few months, to counter digital noise (Tom Warren/The Verge)
https://www.theverge.com/notepad-microsoft

Why Microsoft has created its own print magazine
Microsoft has created its own print magazine, named Signal. It’s a reaction to the digital noise and ephemeral content.

celegansneural: C. elegans neurons (1986)
A network representing the neural connections of the Caenorhabditis elegans nematode.
This network has 297 nodes and 2359 edges.
Tags: Biological, Connectome, Weighted
https://networks.skewed.de/net/celegansneural
Rid…

Abenteuer Moor
Mi., 25.06.25 von 17.00-20.00 Uhr
Erkundungen im Murnauer Moos für Groß und Klein
Bei einer geführten Exkursion auf dem Köchelweg inmitten des Murnauer Mooses lernen wir die Besonderheiten dieses außergewöhnlichen Lebensraums mit verschiedenen Sinnen kennen.
https://www.

Raiders Urged to Trade for 115-Tackle Linebacker https://heavy.com/sports/nfl/las-vegas-raiders/las-vegas-raiders-urged-to-trade-for-115-tackle-linebacker/?adt_ei=[email]

#Python Friday #273: Query Excel Files With #DuckDB
https://pythonfriday.dev/2025/04/273-q

#273: Query Excel Files With DuckDB - Python Friday
None

Gefrorene #Korallen im australischen Taronga-Zoo sollen das Überleben des Great Barrier Reefs sichern.
In flüssigem Stickstoff lagern Proben von 34 #Korallenarten, um sie bei Bedarf wieder auszubringen. Die Zeit drängt. Steigende Temperaturen bedrohen bis zu 90 % aller

Coral frozen in time throws lifeline for Great Barrier Reef
Rows of tanks filled with liquid nitrogen sit in temperature-controlled chambers at Sydney's Taronga zoo, cradling parts of the Great Barrier Reef's diverse and magnificent corals frozen in time.

Series C, Episode 12 - Death-Watch
AVON: Put it on the main screen.
ORAC: I must point out that this is a gross misuse and an absurd waste of my capabilities.
AVON: Put it on the main screen.
ORAC: I will do it only under protest.
https://blake.torpidity.net/m/312/115

Blakes7Bot | Search
Companion site to the Blakes7Bot Twitter, Mastodon, and Bluesky accounts. Automated lines of Blakes 7 dialog. Includes a script search facility.

Overheard in Cork this morning:
--He's a very holy and devoted man.
--He is. And did you know, his wife is a first cousin of Freddie Mercury.

Thank you for a great #QGIS2025 to all organizers and participants

證交所有 OpenAPI，但我找不到任何官方網頁說明這個服務，它就靜靜的等待有緣人們的光臨。
https://openapi.twse.com.tw

edit_wiktionary: Wiktionary edits (2010)
Three bipartite user-page networks extracted from Wiktionary, for French, German, and English. A user connects to a page if that user edited that page. Edits (edges) are timestamped. Edge weights represent counts of the number of edits.
This network has 44388 nodes and 217681 edges.
Tags: Informational, Web graph, Multigraph, Timestamps

Join the 2025 Maine AI 'unconference' on June 13 in Orono for face-to-face discussions whose topics will be democratically chosen by the attenders. (We've got expert panels too.) Register by this Friday—more at https://www.linkedin.com/posts/jonippolito

And please don't forget to visit the 2min video from last Saturday's hike into the #mountains .
Feel free to follow my peertube-account as well: @…

CORS - Cruel Ordeal of Relentless Suffering #web #development #wrongAnswers

Dynamically derived morphology from the recurrence patterns of close binary stars using Kepler data
Anisha R. V. Kashyap, D. Pawar, R. Misra, G. Ambika, Sandip V George
https://arxiv.org/abs/2506.04111

Dynamically derived morphology from the recurrence patterns of close binary stars using Kepler data
In this work, we propose a novel method to classify close binary stars, derived from the dynamical structure inherent in their light curves. We apply the technique to light curves of binaries from the revised Kepler Eclipsing binary catalog, selecting close binaries which have the standard morphology parameter, $c$, $\gt 0.5$ corresponding to semi-detached, over-contact and ellipsoidal systems. Using the method of time delay embedding, we recreate the non-linear dynamics underlying the data and…

My Highlights of #NDCOslo 2025
https://improveandrepeat.com/2025/06/my-highlights-of-ndc-oslo-2025/

My Highlights of NDC Oslo 2025 - Improve & Repeat
None

Neuer #Mitbewohner (oder Mitbewohnerin?)
@… @…

Neuer #Mitbewohner (oder Mitbewohnerin?)
@… @…

Just a quick Clip from our vacation last year in the #schwarzwald 🙂
https://video.franzgraf.de/w/6SiavegVKPhez7PX477F6f

Penpot 匯出 PDF 會有圖片劣化、霧化的問題，至今依然。

A look at Australian startup Cortical Labs' CL1, billed as the first code-deployable biological computer, with 115 units shipping this summer at $35K each (Shannon Cuthrell/IEEE Spectrum)
https://spectrum.ieee.org/biological-computer-for-sale

Human Brain Cells on a Chip for Sale

World-first biocomputing platform hits the market

#Python Friday #277: Access Local #LLMs Through LM Studio
https://pythonfriday.dev/2025/05/277-a

#277: Access Local LLMs Through LM Studio - Python Friday
None

A Tale of Two Shocks
Robert F. Wimmer-Schweingruber, Domenico Trotta, Rungployphan Kieokaew, Liu Yang, Alexander Kollhoff, Lars Berger, Patrick K\"uhl, Stephan I. B\"ottcher, Bernd Heber, Philippe Louarn, Andrey Fedorov, Javier Rodriguez-Pacheco, Ra\'ul G\'omez-Herrero, Francisco Espinosa Lara, Ignacio Cernuda, Yulia Kartavykh, Linghua Wang, George C. Ho, Robert C. Allen, Glenn M. Mason, Zheyi Ding, Andrea Larosa, G. Sindhuja, Sandra Eldrum, Sebastian Fleth, David Lar…

A Tale of Two Shocks
It was the best of times, it was the worst of times, . . . - for the thermal/suprathermal particle populations in the vicinity of two traveling interplanetary shocks observed by Solar Orbiter on 2023-11-29 07:51:17 UTC and 2023-11-30 10:47:26 UTC at $\sim 0.83$ astronomical units from the Sun. We investigate these two very dissimilar shocks and elucidate their non-equilibrium features. We do not provide explanations of all observed features, our aim is to report them here for future reference…

#uspol Federal grants that my mom's department uses to study long-term care for people with Alzheimer's disease have been withdrawn, and an accompanying letter bearing RFK Jr.'s signature decried their work as unscientific and a waste of money.
This is especially sad to our family as her father/my grandfather had Alzheimer's for many years before he passed.
To sus…

Alzheimer's Association | Alzheimer's Disease & Dementia Help
Alzheimer's Association national site – information on Alzheimer's disease and dementia symptoms, diagnosis, stages, treatment, care and support resources.

"Dans la voix, la langue résiste Š la littérature. Par cette manière de retourner la table du sens, la voix déploie tout ce qu’elle ne peut pas et l’offre négativement Š qui sait l’entendre. Avec l’incertitude de l’onde sonore qui se fracasse."
🔗 https://abrupt.cc/charles-pennequin/ra

die Königin macht eine Ankündigung. (Scheinwerfer und Gasflaschen.)
#LichtUndSchatten

die Königin macht eine Ankündigung. (Scheinwerfer und Gasflaschen.)
#LichtUndSchatten

I can miss her a lot and be very sad that she died without needing to hold on to a mug that I don't use and that she might not have given me https://www.overcomecompulsivehoarding.co.uk/podcast-ep…

Swapped the nVidia RTX 4070Ti with a nice, regular-sized AMD Radeon 9070 XT. Everything is running perfectly though I did have to reinstall Linux because I couldn't undo the futzing I did to clear up a few issues with Wayland with the 4070Ti. Not a huge deal, but still annoying. However, everything is fine and now just enjoying some gaming.
#linux

Quantized Dissipative Uncertain Model for Fractional T_S Fuzzy systems with Time_Varying Delays Under Networked Control System
Muhammad Shamrooz Aslam, Hazrat Bilal, Sumeera Shamrooz
https://arxiv.org/abs/2506.02788

Quantized Dissipative Uncertain Model for Fractional T_S Fuzzy systems with Time_Varying Delays Under Networked Control System
This paper addressed with the quantized dissipative uncertain problem for delayed fractional T_S Fuzzy system for event_triggered networked systems (E_NS), where the extended dissipativity analysis combines the H infinity, dissipativity, L2 and L infinity and passivity performance in a unified frame. To attain the high efficiency for available channel resources, measurement size decrease mechanism and event_triggered scheme (ETS) are proposed. Firstly, we present the ETS in which signal is tran…

Thinking in Character: Advancing Role-Playing Agents with Role-Aware Reasoning
Yihong Tang, Kehai Chen, Muyun Yang, Zhengyu Niu, Jing Li, Tiejun Zhao, Min Zhang
https://arxiv.org/abs/2506.01748

Thinking in Character: Advancing Role-Playing Agents with Role-Aware Reasoning
The advancement of Large Language Models (LLMs) has spurred significant interest in Role-Playing Agents (RPAs) for applications such as emotional companionship and virtual interaction. However, recent RPAs are often built on explicit dialogue data, lacking deep, human-like internal thought processes, resulting in superficial knowledge and style expression. While Large Reasoning Models (LRMs) can be employed to simulate character thought, their direct application is hindered by attention diversi…

This https://arxiv.org/abs/2501.16263 has been replaced.
link: https://scholar.google.com/scholar?q=a

Rotation number and dynamics of 3-interval piecewise $λ$-affine contractions
We consider a family of piecewise contractions admitting a rotation number and defined for every $x\in[0,1)$ by $f(x)=λx + δ+ d θ_a(x) \pmod 1$, where $λ\in(0,1)$, $d\in(0,1-λ)$, $δ\in[0,1]$, $a\in[0,1]$ and $θ_a(x)=1$ if $x\geq a$ and $θ_a(x)=0$ otherwise. In the special case where $a=1$, the family reduces to the well studied ``contracted rotations" $x\mapsto λx + δ\pmod 1$, which are 2-interval piecewise $λ$-affine contractions when $δ\in(1-λ,1)$. Considering $a\in(0,1)$ allows …

最近好愛等寬字，好像把所有專案字體都怒改成等寬字。

#HeatherStephens #JeremyJackson
Season 8 Episode 22 "White Thunder at Glacier Bay: part 2"
#RandomBaywatch

Spatiotemporal evolution of UV pulsations and their connection to 3D magnetic reconnection and particle acceleration
Stefan Purkhart, Hannah Collier, Laura A. Hayes, Astrid M. Veronig, Miho Janvier, S\"am Krucker
https://arxiv.org/abs/2506.03825

Spatiotemporal evolution of UV pulsations and their connection to 3D magnetic reconnection and particle acceleration
Quasi-periodic pulsations (QPPs) are a common feature of impulsive solar flare emissions, yet their driving mechanism(s) remain unresolved. We study long-period (3.4 min) QPPs in the M3.7 flare on Feb 24, 2023, using SDO/AIA and Solar Orbiter/STIX to pinpoint their source and driver. We analyzed UV and HXR emissions from four subregions covering the flare ribbons and footpoints of the erupting filament. We find the QPP characteristics varied significantly across these regions. The strongest UV …

Creating a Dump File When dotnet-dump Fails - #dotNet
https://improveandrepeat.com/2025/04/creating-a-dump-file-when-dotnet-dump-fails/

Creating a Dump File When dotnet-dump Fails - Improve & Repeat
None

#Russia #violence #torture
https://mastodon.social/@benroyce/114422327380316710

https://x.com/yan_qing35527/status/1918913180463431881

Mit Tagebüchern über Biodiversität nachdenken
https://www.nationalpark-schwarzwald.de/nationalpark/blog/2025/mit-tagebuechern-ueber-biodiversitaet-nachdenken

Mit Tagebüchern über Biodiversität nachdenken
Welche Akteure kommen beim Thema Biodiversität zur Sprache? Was kann unter Biodiversität versanden werden? Eine Diskursanalyse.

Weniger als ein Jahr nach #Produktionsstart stoppt Meyer-Burger die Fertigung von Solarmodulen in #Arizona und entlässt alle 282 Mitarbeitenden.
Grund ist das Scheitern eines Großvertrags mit #DESRI

Meyer Burger stoppt Solarmodul-Produktion in den USA
Das Schweizer Photovoltaik-Unternehmen hatte vor fast einem Jahr mit der Herstellung von Heterojunction-Modulen in Arizona begonnen. Weniger als sechs Monate später wurde jedoch ein großer Abnahmevertrag gekündigt.

X-ray spectroscopy method of white dwarf mass determination in intermediate polars. External systematic uncertainties
V. F. Suleimanov (IAAT, University of Tuebingen), L. Ducci (IAAT, University of Tuebingen), V. Doroshenko (IAAT, University of Tuebingen), K. Werner (IAAT, University of Tuebingen)
https://arxiv.org/abs/2506.0371…

X-ray spectroscopy method of white dwarf mass determination in intermediate polars. External systematic uncertainties
The masses of white dwarfs (WDs) in intermediate polars (IPs) can be determined from the shape of their hard X-ray spectra. Here we study the importance of all possible systematic uncertainties in this X-ray spectroscopy method, including finite radii and rotation of magnetospheres, finite accretion column height and accretion-flow inclination relative to the WD surface. We also investigate the importance of accretion-heated envelopes on WD surfaces in IPs which are increasing WD radii. Their p…

The Hidden Cost of AI Coding #Ai,

The Hidden Cost of AI Coding
AI coding tools boost productivity but may sacrifice the flow state and deep satisfaction developers experience when writing code by hand. What are we losing?

#Python Friday #282: Working With Temporary Files
https://pythonfriday.dev/2025/06/282-working-with-temporary-files/

#282: Working With Temporary Files - Python Friday
None

New 2nd hand CD for #navidrome arrived.

Dynamical mass of the Serpens intermediate-mass young stellar system EC\,95 with DYNAMO--VLBA
Jazm\'in Ord\'o\~nez-Toro (Instituto de Radioastronom\'ia y Astrof\'isica, Universidad Nacional Aut\'onoma de M\'exico, M\'exico), Sergio A. Dzib (Max Planck Institut f\"ur Radioastronomie, Germany), Laurent Loinard (Instituto de Radioastronom\'ia y Astrof\'isica, Universidad Nacional Aut\'onoma de M\'exico, M\'exico, Black Hole Initiative a…

Dynamical mass of the Serpens intermediate-mass young stellar system EC\,95 with DYNAMO--VLBA
We present dynamical mass measurements, obtained from multi-epoch Very Long Baseline Interferometry (VLBI) observations, for the young multiple stellar system EC\,95, located in the core of the Serpens star-forming region. Our dataset includes both archival data and more recent observations obtained as part of the \textit{Dynamical Masses of Young Stellar Multiple Systems with the VLBA project} (DYNAMO--VLBA), totalling 32 epochs over 12 years of observation. The observations span more than hal…

光是考慮要在哪裡把字串改大寫，就空想了一小時。

Updated Post: Podcast ep 188: 12 ways to make decision-making easier (and why people who hoard find it so hard to make decisions in the first place!) https://www.overcomecompulsivehoarding.co.uk/podcast-ep-188-decision-making-hoarding-disorder…

Parting Thoughts on Performance Testing - #dotNet
https://improveandrepeat.com/2025/04/parting-thoughts-on-performance-testing/

Parting Thoughts on Performance Testing - Improve & Repeat
None

Geomagnetic Storms and Satellite Orbital Decay
Yoshita Baruah
https://arxiv.org/abs/2506.03305 https://arxiv.org/pdf/2506.03305

Geomagnetic Storms and Satellite Orbital Decay
Energetic events on the Sun, particularly coronal mass ejections and high speed streams, regulate the near Earth space environment and give rise to space weather. A major terrestrial manifestation of such events are geomagnetic storms. A geomagnetic storm results in dissipation of energy from the solar wind into the atmosphere, leading to Joule heating and thermospheric expansion. This has serious consequences on Low Earth Orbit satellite lifetimes. Our work demonstrates the impact of different…

New Rotation Periods from the Kepler Bonus Background Light Curves
Zachary R. Claytor, Jamie Tayar
https://arxiv.org/abs/2506.03248 https://

New Rotation Periods from the Kepler Bonus Background Light Curves
The Kepler field hosts the best studied sample of field star rotation periods. However, due to Kepler's large 4" pixels, many of its light curves are at high risk of contamination from background sources. The new Kepler Bonus Background light curves are de-blended using a PSF algorithm, providing light curves of over 400,000 new background sources in addition to over 200,000 re-analyzed Kepler prime targets. These light curves provide the opportunity to search for new rotation periods. Here we …

[2025-06-05 Thu (UTC), 7 new articles found for astro-ph.SR Solar and Stellar Astrophysics]
#toXiv_bot_toot

Now this is uncool: Today morning it rained slightly and I only did a walk instead of a cycling loop.
During the day it was amazingly great weather.
Now as I finished working I see a thunderstorm outside ... this doesn't feel fair

#Python Friday #272: Extensions for #DuckDB
https://pythonfriday.dev/2025/03/272-exten…

#272: Extensions for DuckDB - Python Friday
None

This https://arxiv.org/abs/2506.02551 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Impact of convective overshooting on the single-degenerate model of Type Ia supernovae
The single-degenerate (SD) model is one of the principal models for the progenitors of Type Ia supernovae (SNe Ia). However, it faces some challenges, the primary being its inability to account for the observed SN Ia birth rate. Many studies have attempted to address this issue by expanding the parameter space, defined by the initial donor star mass and orbital period, that can lead to SNe Ia, as well as by improving binary population synthesis. While these efforts have led to significant progr…

'Fahrrad' #FotoVorschlag "Bicycle"
Ahh that motto immediately reminded me of our bike&hike to the Schachen above #GarmischPartenkirchen in 2021.
We were pretty done when we reached our destination but it was a great ride. It would be so cool if I…

This https://arxiv.org/abs/2506.00493 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Asteroseismology of the G8 subgiant beta Aquilae with SONG-Tenerife, SONG-Australia and TESS
We present radial velocities of the G8 subgiant star beta Aql obtained in 2022 and 2023 using SONG-Tenerife and SONG-Australia. We also analysed a sector of TESS photometry that overlapped with the 2022 SONG data. We processed the time series to assign weights and to remove bad data points. The power spectrum clearly shows solar-like oscillations centred at 430 muHz. The TESS data show the oscillations at lower signal-to-noise because photometric measurements are much more affected by the granu…

NDC Oslo 2025 Workshop: Designing APIs
https://improveandrepeat.com/2025/05/ndc-oslo-2025-workshop-designing-apis/

NDC Oslo 2025 Workshop: Designing APIs - Improve & Repeat
None

This https://arxiv.org/abs/2505.21945 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Deuterated water abundance in the young hot core RCW 120 S2
Since the emission of water molecules cannot be observed from Earth, less abundant isotopologues, such as H$_2^{18}$O and HDO, are used to trace water in star-forming regions. The main aim of this study is to determine HDO abundance in the hot core RCW 120 S2. We performed observations of the hot core in the 200-255~GHz range using the nFLASH230 receiver on the APEX telescope. Two HDO lines were detected toward RCW 120 S2. Their intensities are described by excitation temperature $286\pm2$~K an…

現代人都要會上網，懂 internet 和 WWW，更新潮一點的還會上聊天室和遠方的網友聊天，做到天涯若比鄰。

This https://arxiv.org/abs/2502.20495 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Highly Variable Magnetic Pressure-Driven YSO Jets in the Polar Cavity from Toroidal Fields Generated by Inner Disk Accretion
Jets and outflows are commonly observed in young stellar objects (YSOs), yet their origins remain debated. Using 3D non-ideal magnetohydrodynamic (MHD) simulations of a circumstellar disk threaded by a large-scale open poloidal magnetic field, we identify three components in the disk-driven outflow: (1) a fast, collimated jet, (2) a less collimated, slower laminar disk wind, and (3) a magneto-rotational instability (MRI)-active turbulent disk wind that separates the former two. At high altitude…

This https://arxiv.org/abs/2408.10938 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

YSO Jets Magnetocentrifugally Driven by Reconnecting Atmospheric Avalanche Accretion Streams Above Inner Circumstellar Disks
Fast, collimated jets are ubiquitous features of young stellar objects (YSOs). They are generally thought to be powered by disk accretion, but the details are debated. Through 2D (axisymmetric) MHD simulations, we find that a fast ($>100$~km/s) collimated bipolar jet is continuously driven along the north and south poles of the circumstellar disk that is initially magnetized by a large-scale open poloidal field and contains a thermally ionized inner magnetically active zone surrounded by a dead…

I finally finished the blogpost including some new photos and a short video (!!) from my hike last Saturday.
To me it was a really really gorgeous day!
Read the story here: https://www.franzgraf.de/blog/2025/getting-up-early-for-the-mountains/
(a…

Figure Out Where Your Memory Went With dotnet-dump #dotnet
https://improveandrepeat.com/2025/03/figure-out-where-your-memory-went-with-dotnet-dump/…

Figure Out Where Your Memory Went With dotnet-dump - Improve & Repeat
None

Reduce Infrastructure Costs Guided by Performance #Testing - #dotNet
https://imp…

Reduce Infrastructure Costs Guided by Performance Testing - Improve & Repeat
None

有決明子又有玻尿酸，顧眼睛又顧皮膚，還很好喝，太養生了吧。

We just went for a walk in Bad Tölz. Nothing special, just going for a walk along the river #isar.
Enjoy your Sunday!
#silentsunday #badtoelz

稅額估算表，★ 納稅義務人暨扶養親屬所得資料，這段最後面的「薪資所得計算式」表格怎麼看不懂，只有數字沒有項目？

I noticed that I neglected my peertube instance for a while instead of just uploading some short clips that I record on my hikes ...
#hiking

#Python Friday #271: Querying Data With #DuckDB
https://pythonfriday.dev/2025/03/271-q

#271: Querying Data With DuckDB - Python Friday
None

'Dinge die mit "S" beginnen oder so aussehen ...' #FotoVorschlag (Things starting with S).
#Schnee / #Snow
I took this

How to Remove a #Windows Service
https://improveandrepeat.com/2025/05/how-to-remove-a-windows-service/

How to Remove a Windows Service - Improve & Repeat
None

Thin coronal jets and plasmoid-mediated reconnection: Insights from Solar Orbiter observations and Bifrost simulations
D. N\'obrega-Siverio, R. Joshi, E. Sola-Viladesau, D. Berghmans, D. Lim
https://arxiv.org/abs/2506.03092

Thin coronal jets and plasmoid-mediated reconnection: Insights from Solar Orbiter observations and Bifrost simulations
Coronal jets are ubiquitous, collimated million-degree ejections that contribute to the energy and mass supply of the upper solar atmosphere and the solar wind. Solar Orbiter provides an unprecedented opportunity to observe fine-scale jets from a unique vantage point close to the Sun. We aim to (1) uncover thin jets originating from Coronal Bright Points (CBPs), revealing previously unresolved contributions to coronal upflows; and (2) improve our understanding of plasmoid-mediated reconnection …

Eighteen Exoplanet Host Stars from the NPOI Data Archive
Ellyn K. Baines, Jeremy Jones, James H. Clark III, Henrique R. Schmitt, Jordan M. Stone
https://arxiv.org/abs/2506.02934

Eighteen Exoplanet Host Stars from the NPOI Data Archive
During the course of publishing angular diameters from the Navy Precision Optical Interferometer data archive, we found we had data on 17 confirmed exoplanet host stars and one exoplanet candidate (HD 20902/alpha Per). Here, we update our previously published stellar radii with more precise Gaia parallaxes when available, and use our radius and effective temperature measurements to fit each star's mass and age using MIST models. The mass changed by more than 10% for 9 of the 18 stars. Combining…

Vintage NPOI: New and Updated Angular Diameters for 145 Stars
Ellyn K. Baines, James H. Clark III, Bradley I. Kingsley, Henrique R. Schmitt, Jordan M. Stone
https://arxiv.org/abs/2506.02912

Vintage NPOI: New and Updated Angular Diameters for 145 Stars
We present new or updated angular diameters, physical radii, and effective temperatures for 145 stars from the Navy Precision Optical Interferometer data archive. We used data from 1996 to late-2021, and we describe the differences between early and late data, which hinge upon an update of the beam combiner in 2002. We came across several sub-categories of stars of interest: 13 of our stars are promising targets for the Habitable World Observatory and therefore require as much study as possible…

Close the Loop and Load Test the Improvements - #dotNet
https://improveandrepeat.com/2025/03/close-the-loop-and-load-test-the-improvements/

Close the Loop and Load Test the Improvements - Improve & Repeat
None

Hi friends!
I set my alarm to 5am and headed out for a nice walk. It was getting warm, so I started early. - and it was just so good to do so!
A nice 6h walk with lots of views, lots of photos and just enjoying being out. End the #summit just for me 😍
On the way up I noted all places where I could refuel later using my water filter. Seriously: why didn't I buy that waaays ear…

Optical spectroscopic signatures of the red giant evolutionary state
Ella Xi Wang, Melissa Ness, Thomas Nordlander, Andrew R. Casey, Sarah Martell, Marc Pinsonneault, Xiaoting Fu, Dennis Stello, Claudia Reyes, Marc Hon, Madeleine McKenzie, Mingjie Jian, Jie Yu, Sven Buder, Karin Lind, Joss Bland-Hawthorn, Daniel B. Zucker, Pradosh Barun Das, Richard de Grijs, Michael Hayden

Optical spectroscopic signatures of the red giant evolutionary state
Modern spectroscopic surveys output large data volumes. Theoretical models provide a means to transform the information encoded in these data to measurements of physical stellar properties. However, in detail the models are incomplete and simplified, and prohibit interpretation of the fine details in spectra. Instead, the available data provide an opportunity to use data-driven, differential analysis techniques, as a means towards understanding spectral signatures. We deploy such an analysis to…

Hi friends!
I set my alarm to 5am and headed out for a nice walk. It was getting warm, so I started early. - and it was just so good to do so!
A nice 6h walk with lots of views, lots of photos and just enjoying being out. End the #summit just for me 😍
On the way up I noted all places where I could refuel later using my water filter. Seriously: why didn't I buy that waaays ear…

Constraining the physical structure of the circumstellar environment of V838 Monocerotis remnant
Muhammad Zain Mobeen, Tomasz Kami\'nski, Stephen Potter
https://arxiv.org/abs/2506.02812

Constraining the physical structure of the circumstellar environment of V838 Monocerotis remnant
V838 Monocerotis (V838 Mon) erupted in 2002 as a luminous red nova after which it cooled and began to form dust. The remnant is predicted to become a blue straggler. Interferometric observations in the HKLM bands have uncovered a stable bipolar feature in the closest vicinity of the remnant star. We aim to constrain the physical structure and nature of the circumstellar material immediately surrounding V838 Mon. Using the radiative-transfer code RADMC3D we managed to constrain the dust density …

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne
Meng Zhang, Maosheng Xiang, Yuan-Sen Ting, Anish Maynur Amarsi, Hua-Wei Zhang, Jianrong Shi, Haibo Yuan, Haining Li, Jiahui Wang, Yaqian Wu, Tianmin Wu, Lanya Mou, Hong-liang Yan, Jifeng Liu
https://

Homogeneous Stellar Atmospheric Parameters and 22 Elemental Abundances for FGK Stars Derived From LAMOST Low-resolution Spectra with DD-Payne
A deep understanding of our Galaxy desires detailed decomposition of its stellar populations via their chemical fingerprints. This requires precise stellar abundances of many elements for a large number of stars. Here we present an updated catalog of stellar labels derived from LAMOST low-resolution spectra in a physics-sensible and rigorous manner with DD-Payne, taking labels from high-resolution spectroscopy as training set. The catalog contains atmospheric parameters for 6.4 million stars re…

#Python Friday #279: Sentiment Analysis in Python - #ai
https://pythonfriday.dev/2025/05/279-s

#279: Sentiment Analysis in Python - Python Friday
None

Be star He star binary as an indicator of binary mass transfer phase
Yuchen Bao, Zhenwei Li, Hongwei Ge, Xuefei Chen, Zhanwen Han
https://arxiv.org/abs/2506.02662

Be star + He star binary as an indicator of binary mass transfer phase
The rapid rotation of Be stars is supposed to mainly originate from binary evolution. In recent years, more and more Be stars with helium (He) star companions have been discovered, which provides a significant opportunity to study binary interaction physics. In this work, we perform binary population synthesis with an updated binary mass transfer stability criterion and try to understand the details of mass transfer processes by constructing a series of Be star + He star (BeHe) binary populatio…

The Strange Memory Leak in .Net 8 - #dotNet
https://improveandrepeat.com/2025/04/the-strange-memory-leak-in-net-8/

The Strange Memory Leak in .Net 8 - Improve & Repeat
None

Reappraising the Elatina series: Solar dynamo clocking and inference of orbital periods
F. Stefani, T. Weier, G. M. Horstmann, G. Mamatsashvili
https://arxiv.org/abs/2506.02628

Reappraising the Elatina series: Solar dynamo clocking and inference of orbital periods
We reconsider the 680 million year old Elatina series of sedimentary laminae from South Australia that show a remarkably stable periodicity with a main period of around 12 years, which is close to the Schwabe cycle, and a second period of 314 years that has been coined Elatina cycle. By analyzing the residuals of the series' minima from a linear trend, and deriving Dicke's ratio, we first show that the series exhibits a high degree of phase stability, except one single break point which may ind…

Time path of turbulence and multi-fractality of magnetic field in the evolution of an active region
Valentina Abramenko
https://arxiv.org/abs/2506.02586 ht…

Time path of turbulence and multi-fractality of magnetic field in the evolution of an active region
Magnetograms acquired with the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO) were used to calculate and analyze time variations of turbulence and multifractality in the photosphere during the development and flaring of a mature active region NOAA 13354 during its passage across the solar disk. Turbulence was explored with 2D magnetic power spectra from magnetograms, and multifractality was analyzed using the structure functions of magnetograms. Time vari…

Impact of convective overshooting on the single-degenerate model of Type Ia supernovae
Xinghuan Wang, Xiangcun Meng
https://arxiv.org/abs/2506.02551 https:…

Impact of convective overshooting on the single-degenerate model of Type Ia supernovae
The single-degenerate (SD) model is one of the principal models for the progenitors of Type Ia supernovae (SNe Ia). However, it faces some challenges, the primary being its inability to account for the observed SN Ia birth rate. Many studies have attempted to address this issue by expanding the parameter space, defined by the initial donor star mass and orbital period, that can lead to SNe Ia, as well as by improving binary population synthesis. While these efforts have led to significant progr…

Rapid stellar and binary population synthesis with COMPAS: methods paper II
Ilya Mandel, Jeff Riley, Adam Boesky, Adam Brcek, Ryosuke Hirai, Veome Kapil, Mike Y. M. Lau, JD Merritt, Nicol\'as Rodr\'iguez-Segovia, Isobel Romero-Shaw, Yuzhe Song, Simon Stevenson, Avi Vajpeyi, L. A. C. van Son, Alejandro Vigna-G\'omez, Reinhold Willcox
https…

Rapid stellar and binary population synthesis with COMPAS: methods paper II
The COMPAS public rapid binary population synthesis code has undergone a number of key improvements since the original COMPAS methods paper (Team COMPAS: Riley et al., 2022) was published. These include more sophisticated and robust treatments of binary interactions: mass transfer physics, common-envelope events, tides and gravitational-wave radiation reaction; and updated prescriptions for stellar evolution, winds and supernovae. The code structure and outputs have also been updated, with a fo…

[2025-06-04 Wed (UTC), 11 new articles found for astro-ph.SR Solar and Stellar Astrophysics]
#toXiv_bot_toot

This https://arxiv.org/abs/2505.24559 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The Samples and Binary Fractions of Red Supergiant in M31 and M33 by the HST
The binarity of red supergiants (RSGs) influences their evolution and the fate of supernovae. We investigate the binary fraction of RSGs in the Andromeda Galaxy (M31) and Triangulum Galaxy (M33) using photometry from the Hubble Space Telescope (HST), which offers high spatial resolution to resolve more RSGs. A preliminary step involves identifying a reliable and complete RSG sample using the F110W $-$ F160W versus F160W diagram, yielding 2,612 RSGs from the Panchromatic Hubble Andromeda Treasur…

This https://arxiv.org/abs/2505.14686 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

HDO ice detected toward an isolated low-mass protostar with JWST
Water is detected in environments representing every stage of star and solar system formation, but its chemical evolution throughout these stages remains poorly constrained. Deuterium ratios offer a means of probing chemical links between water in different cosmic regions because of their sensitivity to physicochemical conditions. Here, we present the first detection of the 4.1 $μ$m HDO ice feature with JWST toward a low-mass protostar, L1527 IRS, which may eventually grow to a sun-like mass. …

This https://arxiv.org/abs/2505.09708 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The uncertainty of magnetic fields in 3D non-local thermodynamic equilibrium inversions
We describe our approach to solve the problem of ensuring the solenoidality of the magnetic field vector in three-dimensional (3D) inversions, as well as the estimation of the uncertainty in the inferred magnetic field. The solenoidality of the magnetic field vector is often disregarded in the inversion of spectropolarimetric data due to limitations in the traditional one-dimensional inversion techniques. We propose a method to ensure the solenoidal condition in 3D inversions based on our meshf…

This https://arxiv.org/abs/2504.19616 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Exploring circumstellar chemistry in X-ray emitting AGB stars
Aims. Our goal is to characterize the chemistry and physical conditions of the circumstellar envelopes (CSEs) of Asymptotic Giant Branch (AGB) binary candidate stars with UV-excess and X-ray emission, in particular, to identify the effects of the internal X-ray emission in the abundance of certain key molecules. Methods. We observed the 86.0-94.0 and 260.0-272.5 GHz spectral ranges searching for rotational transitions of the X-ray sensitive molecule $HCO^{+}$ in four AGB stars, two of them dete…

This https://arxiv.org/abs/2503.02753 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

An SS433 flare caught by TESS. Fast rise times and evidence for a 13 hours quasi-period
SS433 is an exotic Galactic microquasar in which there is a supercritical inflow of matter into a compact object of likely black hole nature. Here we report on an SS433 flare that occurred during a TESS observation of Sector 54 in June of 2022. The flare lasted for about 10 days and culminated in a flux increase by a factor of three relative to quiescence. The unprecedented continuous photometric coverage of the flare afforded by TESS shows that the flux can rise and fall by up to a factor of t…

This https://arxiv.org/abs/2501.01009 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Detection of "diffuse" coronal He I 1083 during the April 8 2024 Solar Eclipse: evidence for terrestrial atmospheric scattering origin
Strong He I 1083 nm atomic line signals have been previously measured during total solar eclipses at coronal heights above the lunar limb. This rather unexpected measurement has kindled a discussion about the hypothesized presence of significant amounts of neutral helium at coronal conditions. We performed spectroscopic observations of the He I 1083 nm spectroscopic region with the newly built CHEESE instrument during the April 8th 2024 total solar eclipse to test the presence of He I 1083 in t…

This https://arxiv.org/abs/2412.10053 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

De-Biasing Structure Function Estimates From Sparse Time Series of the Solar Wind: A Data-Driven Approach
Structure functions, which represent the moments of the increments of a stochastic process, are essential complementary statistics to power spectra for analysing the self-similar behaviour of a time series. However, many real-world environmental datasets, such as those collected by spacecraft monitoring the solar wind, contain gaps, which inevitably corrupt the statistics. The nature of this corruption for structure functions remains poorly understood - indeed, often overlooked. Here we simulat…