Tootfinder

I have contributed a public statement in the currently open consultation on EU data retention plans: https://www.mayrhofer.eu.org/post/on-mass-data-retention/
You might want to do so as well.

On data retention laws: Why this is (still) not a good balance between mass surveillance and law enforcement | René Mayrhofer
The latest effort to legalize mass data retention of communication traffic metadata is still problematic. I try to make my most pressing argument why the balance between preventing harm and causing potential harm is not met.

Sources: Disney is laying off several hundred employees globally across multiple teams, including TV and film (Todd Spangler/Variety)
https://variety.com/2025/tv/news/disney-mass-layoffs-tv-film-finance-departments-1236415786/

Disney Mass Layoffs Cut Across TV, Film, Finance and Other Departments
Disney is laying off several hundred employees globally across multiple teams.

ISP Frontier Communications settles a lawsuit from record labels that demanded broadband users accused of piracy be dropped; SCOTUS may hear Cox's similar case (Jon Brodkin/Ars Technica)
https://arstechnica.com/tech-policy/20

ISP settles with record labels that demanded mass termination of Internet users
One piracy case is over, but the biggest one could be decided by Supreme Court.

🇵🇦 In Panama, Authorities Are Cracking Down on Mass Strikes
#panama

In Panama, Authorities Are Cracking Down on Mass Strikes
In a country with little left-wing politics, Panama’s nearly two-month-long strike movement has shown the power of organized labor. The government has responded with repression, acting as a rearguard for multinationals like Chiquita.

Trump asks SCOTUS to permit mass firing of federal workers
https://lawandcrime.com/supreme-court/turned-the-constitutional-structure-upside-down-trump-admin-asks-scotus-to-halt-indefensible-court-order-and-permit-mass-termination-of-federal-workers/

Searching for intermediate mass ratio binary black hole mergers in the third observing run of LIGO-Virgo-KAGRA
Mark Ho-Yeuk Cheung, Digvijay Wadekar, Ajit Kumar Mehta, Tousif Islam, Javier Roulet, Emanuele Berti, Tejaswi Venumadhav, Barak Zackay, Matias Zaldarriaga
https://arxiv.org/abs/2507.01083

Searching for intermediate mass ratio binary black hole mergers in the third observing run of LIGO-Virgo-KAGRA
Intermediate mass ratio inspirals (IMRIs) of binary black holes with mass ratios $10^{-4}\lesssim q \lesssim 0.1$ are astrophysically interesting sources of gravitational waves. Mergers of intermediate-mass black holes (IMBHs) with stellar-mass black holes would be IMRIs, so their detection can help us probe the formation mechanisms of IMBHs. They can also help us perform precise tests of general relativity due to the presence of strong higher-order mode emission. We perform a search for aligne…

Spatial Coordinates as a Cell Language: A Multi-Sentence Framework for Imaging Mass Cytometry Analysis
Chi-Jane Chen, Yuhang Chen, Sukwon Yun, Natalie Stanley, Tianlong Chen
https://arxiv.org/abs/2506.01918

Spatial Coordinates as a Cell Language: A Multi-Sentence Framework for Imaging Mass Cytometry Analysis
Image mass cytometry (IMC) enables high-dimensional spatial profiling by combining mass cytometry's analytical power with spatial distributions of cell phenotypes. Recent studies leverage large language models (LLMs) to extract cell states by translating gene or protein expression into biological context. However, existing single-cell LLMs face two major challenges: (1) Integration of spatial information: they struggle to generalize spatial coordinates and effectively encode spatial context as …

It is only a matter of time until noem, homan, dhs, ice and potus realize dropping people out of aircraft is cheaper than housing or moving them.
Unless they already have.
Rumors are the US is engaging in death flights. Already there are some known flight paths of ice flights turning around over bodies of water.
The US Congress and international community seem to be the only things that can stop this.

Microsoft cuts hundreds of Xbox jobs across studios, sources say including Halo Studios and King, and cancels games like Perfect Dark and Everwild (Eddie Makuch/GameSpot)
https://www.gamespot.com/gallery/all-the-x

All The Xbox Games Cancelled And Studios Closed In Microsoft's Latest Mass Layoffs
Microsoft has made more dramatic cuts to the Xbox business.

Trump asks the Supreme Court to clear the way for federal downsizing plans (Mark Sherman/Associated Press)
https://apnews.com/article/trump-mass-firings-supreme-court-doge-0ea25bf33376bda2434992587c7f3143
http://www.memeorandum.com/250602/p109#a250602p109

Estimating Global Ejecta Mass Ratios in Tycho's SNR
Tyler Holland-Ashford, Patrick Slane, Brian Williams
https://arxiv.org/abs/2505.23897 https://

Estimating Global Ejecta Mass Ratios in Tycho's SNR
In this work, as a follow-up to our similar analysis of Kepler's supernova remnant (SNR), we estimate total mass ratios of various ejecta elements in Tycho's SNR using Suzaku X-ray data. In our spectral analysis, we account for uncertainties arising from Suzaku's effective area calibration (5%-15%) and from the unknown filling factors of the various plasma components in our spectral model (1%-10%). We compare our calculated ejecta mass ratios to results from previous X-ray analyses of Tycho's S…

Long-term investigation of an open cluster Berkeley 65
Tarak Chand, Saurabh Sharma, Koshvendra Singh, Jeewan Pandey, Aayushi Verma, Harmeen Kaur, Mamta, Manojit Chakraborty, Devendra K. Ojha, Ajay Kumar Singh
https://arxiv.org/abs/2505.24240

Long-term investigation of an open cluster Berkeley 65
We present a decade-long investigation of a poorly studied cluster, Berkeley 65 (Be 65), using deep optical data from the telescopes of ARIES, Nainital Observatory. We estimate its radius ($R_{cluster}$ = 1.6$^{'}$, aspect ratio of $\sim$1.1), distance (2.0 $\pm$ 0.1 kpc) and age ($\sim$160 Myrs). A clear turn-off point at $\sim$1.7 M$_\odot$ in the mass function suggests the escape of low-mass stars, and the lower photometric mass compared to the dynamical mass indicates ongoing disruption due…

A Constructive Proof of Existence and Mass Gap for Pure SU(3) Yang-Mills in Four-Dimensional Space-Time
D. C. Jacobsen
https://arxiv.org/abs/2506.00284 htt…

A Constructive Proof of Existence and Mass Gap for Pure SU(3) Yang-Mills in Four-Dimensional Space-Time
In this work we present a constructive proof that pure SU(3) Yang-Mills theory on R^4 exists as a nontrivial Wightman quantum field theory and exhibits a strictly positive mass gap. Our approach embeds the four-dimensional gauge theory as the zero-mode sector of a five-dimensional orbifold regulator that preserves gauge invariance and reflection positivity. A convergent joint polymer expansion on the Wilson lattice provides uniform control of the continuum (a->0) and infinite-volume (L->inf) li…

Impact of a granular mass distribution on the orbit of S2 in the Galactic center
Matteo Sadun Bordoni, Roberto Capuzzo Dolcetta, Aleksey Generozov, Guillaume Bourdarot, Antonia Drescher, Frank Eisenhauer, Reinhard Genzel, Stefan Gillessen, Simran Joharle, Felix Mang, Thomas Ott, Diogo C. Ribeiro, Sebastiano D. von Fellenberg
https://

Impact of a granular mass distribution on the orbit of S2 in the Galactic center
The orbit of the S2 star around Sagittarius A* provides a unique opportunity to test general relativity and study dynamical processes near a supermassive black hole. Observations have shown that the orbit of S2 is consistent with a Schwarzschild orbit at a 10$σ$ confidence level, constraining the amount of extended mass within its orbit to less than 1200 M$_\odot$, under the assumption of a smooth, spherically symmetric mass distribution. In this work we investigate the effects on the S2 orbit…

Status of the W boson mass and the future of the electroweak fit in the next decades
Giuseppe Bozzi, Matthias Schott
https://arxiv.org/abs/2506.01887 https…

Status of the W boson mass and the future of the electroweak fit in the next decades
A precise determination of the W boson mass is an essential test for the Standard Model of particle physics: the comparison of experimental value and theoretical prediction allows to probe the internal consistency of the electroweak sector and could possibly highlight signals of New Physics. We provide a concise and up-to-date summary of past and recent measurements at lepton and hadron colliders, a discussion of the known perturbative and non-perturbative theoretical ingredients used to provid…

ISP Frontier Communications settles a lawsuit from record labels that demanded broadband users accused of piracy be dropped; SCOTUS may hear Cox's similar case (Jon Brodkin/Ars Technica)
https://arstechnica.com/tech-policy/20

ISP settles with record labels that demanded mass termination of Internet users
One piracy case is over, but the biggest one could be decided by Supreme Court.

I wrote up a longer post about a bike riding group and how we use the web... along with some of my own thoughts on how to do it.
Feedback and ideas are welcome!
➡️ https://rasterweb.net/raster/2025/05/31/milwaukee-critical-mass-web-site/

Milwaukee Critical Mass Web Site
Thoughts on how we use the web in 2025...

Ultralight fuzzy dark matter review
Andrew Eberhardt, Elisa G. M. Ferreira
https://arxiv.org/abs/2507.00705 https://arxiv.org/pdf/250…

Ultralight fuzzy dark matter review
Ultralight dark matter refers to the lightest potential dark matter candidates. We will focus on the mass range that has been studied using astrophysical and cosmological observations, corresponding to a mass $10^{-24} \, \mathrm{eV} \lesssim m \lesssim 10^{-18} \, \mathrm{eV}$. We will discuss the motivations for this mass range. The most studied model in this range corresponds to a minimally coupled, single, classical, spin-0 field comprising all dark matter. However, the work exploring exten…

Normalized ground states for NLS equations with mass critical nonlinearities
Silvia Cingolani, Marco Gallo, Norihisa Ikoma, Kazunaga Tanaka
https://arxiv.org/abs/2507.00639

Normalized ground states for NLS equations with mass critical nonlinearities
We study normalized solutions $(μ,u)\in \mathbb{R} \times H^1(\mathbb{R}^N)$ to nonlinear Schrödinger equations $$ -Δu + μu = g(u)\quad \hbox{in}\ \mathbb{R}^N, \qquad \frac{1}{2}\int_{\mathbb{R}^N} u^2 dx = m, $$ where $N\geq 2$ and the mass $m>0$ is given. Here $g$ has an $L^2$-critical growth, both in the origin and at infinity, that is $g(s)\sim |s|^{p-1}s$ as $s\sim 0$ and $s\sim\infty$, where $p=1+\frac{4}{N}$. We continue the analysis started in [Cingolani-Gallo-Ikoma-Tan…

Let’s be clear:
The people saying “Alligator Auschwitz” are not blowing things out of proportion. They are not putting words in MAGA’s mouth. This is a clear and explicit endorsement of the mass murder of an entire identity group in the US.
And yes, obviously she is “joking.” Of course she is “joking.” But with quotation marks. She is not joking.

Our planet is currently reverberating from the impact of a powerful coronal mass ejection (CME) that struck Earth head-on in the early hours of June 1 — and the resulting auroras were absolutely stunning.
The CME erupted during an M8.2 class solar flare eruption on May 30 at 8:05 p.m. EDT (00:05 GMT on May 31) and has been racing toward Earth at nearly 1,938 km/s or 4.3 million mph.
When it slammed into Earth's magnetic field, the impact triggered a severe (G4) geomagnetic sto…

Severe G4 geomagnetic storm sparks northern lights across US and beyond (photos)
The speedy solar storm arrived in style, sparking stunning aurora displays as far south as California and New Mexico.

Diversity of rocky planet atmospheres in the C-H-O-N-S-Cl system with interior dissolution, non-ideality, and condensation: Application to TRAPPIST-1e and sub-Neptunes
Dan J. Bower, Maggie A. Thompson, Kaustubh Hakim, Meng Tian, Paolo A. Sossi
https://arxiv.org/abs/2507.00499

Diversity of rocky planet atmospheres in the C-H-O-N-S-Cl system with interior dissolution, non-ideality, and condensation: Application to TRAPPIST-1e and sub-Neptunes
A quantitative understanding of the nature and composition of low-mass rocky exo(planet) atmospheres during their evolution is needed to interpret observations. The magma ocean stage of terrestrial- and sub-Neptune planets permits mass exchange between their interiors and atmospheres, during which the mass and speciation of the atmosphere is dictated by the planet's volatile budget, chemical equilibria, and gas/fluid solubility in molten rock. As the atmosphere cools, it is modified by gas-phas…

Identifying hyperons in neutron star matter from the slope of the mass-radius diagram
M\'arcio Ferreira, Constan\c{c}a Provid\^encia
https://arxiv.org/abs/2506.00550

Identifying hyperons in neutron star matter from the slope of the mass-radius diagram
The slope of the neutron star mass radius curve $dM/dR$ determined from two large sets of relativistic mean field equations of state for nucleonic and hyperonic neutron star matter is discussed. It is shown that if the mass-radius curve always has a negative slope the probability that the star has hyperons is very small. A very small probability of the presence of hyperons can already be identified by a negative slope for low-mass stars. A positive slope at $M/M_{\odot} = 1.4$, could indicate t…

Search for a new 17 MeV resonance via $e^ e^-$ annihilation with the PADME Experiment
F. Bossi, R. De Sangro, C. Di Giulio, E. Di Meco, D. Domenici, G. Finocchiaro, L. G. Foggetta, M. Garattini, P. Gianotti, M. Mancini, I. Sarra, T. Spadaro, C. Taruggi, E. Vilucchi, K. Dimitrova, S. Ivanov, Sv. Ivanov, K. Kostova, V. Kozhuharov, R. Simeonov, F. Ferrarotto, E. Leonardi, P. Valente, E. Long, G. C. Organtini, M. Raggi, A. Frankenthal

Search for a new 17 MeV resonance via $e^+e^-$ annihilation with the PADME Experiment
The PADME Experiment at the Frascati DA$Φ$NE LINAC has searched for a hypothetical particle with mass around 17 MeV, commonly referred to as the X17, using a positron beam incident on a fixed target. The beam energy was varied between 262 and 296 MeV, corresponding to center-of-mass energies $\sqrt{s}$ between 16.4 and 17.4 MeV. The X17 should be produced resonantly via $e^+e^-$ annihilation when $\sqrt{s}$ approaches its mass, inducing an excess of events with a two-body final state over the …

This https://arxiv.org/abs/2503.21572 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

Convergence of a Stochastic Particle System to the Continuous Generalized Exchange-Driven Growth Model
The continuous generalized exchange-driven growth model (CGEDG) is a system of integro-differential equations describing the evolution of cluster mass under mass exchange. The rate of exchange depends on the masses of the clusters involved and the mass being exchanged. This can be viewed as both a continuous generalization of the exchange-driven growth model and a coagulation-fragmentation equation that generalizes the continuous Smoluchowski equation. Starting from a Markov jump process that…

Corbyn calling out the 'Labour' warmongers.
#warmongering

Almost all mass media make money mostly from drawing attention (media hype serving advertisers), not from reporting facts or insights. It's a lost battle for good scientists to inform the public?

Chinese companies' incentive is simple: "Don't lose market share, and future markets are included."
https://www.bbc.co.uk/future/article/20250530-how-electric-scooters-are-driving-chinas-salt-battery-push…

How electric scooters are driving China's salt battery push
The country is racing ahead of the rest of the world in bringing sodium-ion batteries to the mass market. This time, through scooters.

It’s frustrating and disappointing to see people, including governments, police, and others, misrepresent GrapheneOS and even Pixel phones.
https://grapheneos.social/@GrapheneOS/114784469162979608

This https://arxiv.org/abs/2209.03350 has been replaced.
link: https://scholar.google.com/scholar?q=a

Modeling Polarized Radio Sounding Observations of a Coronal Mass Ejection
Coronal Mass Ejections (CMEs) evolve significantly as they propagate from the Sun to the Earth, so remote observations of their changes in speed, strength of the magnetic field, density, and overall structure are critical for predicting their arrival time and geoeffectiveness. Radio line-of-sight observations of Faraday rotation and Total Electron Content combined with white-light observations enables the measurement of these properties with careful analyses. This paper describes the analysis t…

Test mass charge management in the detection of gravitational waves in space based on UV micro-LED
Yuandong Jia, Zhihao Zhang, Yinbowen Zhang, Yuning Gu, Suwen Wang, Guozhi Chai, Zemin Zhang, Yi Zhang, Shanduan Zhang, Hongqing Huo, Zongfeng Li, Pengfei Tian, Yun Kau Lau
https://arxiv.org/abs/2507.00086

Test mass charge management in the detection of gravitational waves in space based on UV micro-LED
As an alternative to the ultraviolet light emitting diode(UV LED), the feasibility of utilizing UV micro-LED in the charge management in the detection of gravitational waves in space is experimentally studied. Compared with UV LED, micro-LED is more compact in size, has better current spreading, faster response time and longer operating life. Performance characteristics of micro-LEDs were measured, with peak wavelength of 254 nm, 262 nm, 274 nm, and 282 nm for each respective micro-LED, and the…

🔊 #NowPlaying on #BBCRadio3:
#Radio3InConcert
- A mighty Haydn Mass from Glasgow
The Scottish Chamber Orchestra and Chorus with Principal Conductor Maxim Emelyanychev and star soloists perform, Brahms, Beethoven and Haydn from Glasgow's City Halls.
Relisten now 👇
https://www.bbc.co.uk/programmes/m002cp29

Anatomy of a mass disappearance in Mexico -- EL PAÍS English https://english.elpais.com/international/2025-06-28/anatomy-of-a-mass-disappearance-in-mexico-mom-i-fell-into-the-hands-of-the-mafia.htm…

Anatomy of a mass disappearance in Mexico: ‘Mom, I fell into the hands of the mafia’
EL PAÍS reconstructs the last movements of a group of 40 migrants from Cuba, Honduras and Ecuador who disappeared on December 21, 2024, in San José El Hueyate, on the coast of Chiapas. Six months later, no authorities have begun to search for them.

Relationship between prominence eruptions and coronal mass ejections during solar cycle 24
Pooja Devi, Nat Gopalswamy, Seiji Yashiro, Sachiko Akiyama, Ramesh Chandra, Kostadinka Koleva
https://arxiv.org/abs/2505.24202

Relationship between prominence eruptions and coronal mass ejections during solar cycle 24
In this article, we present the relationship between prominence eruptions (PEs) and coronal mass ejections (CMEs) from May 2010 to December 2019 covering most of solar cycle 24. We used data from the Atmospheric Imaging Assembly (AIA) for PEs and the Large Angle and Spectrometric Coronagraph (LASCO) for CMEs. We identified 1225 PEs, with 67% being radial, 32% transverse, and 1% failed PEs. The radial, transverse PEs, and the combined set have average speeds of ~53, 9, and 38 km/s, respectively.…

Radiative Mass Generation in Gauged Theories of Flavour: A Path to Fermion Mass Hierarchies
Gurucharan Mohanta
https://arxiv.org/abs/2506.23665 https://

Radiative Mass Generation in Gauged Theories of Flavour: A Path to Fermion Mass Hierarchies
We present a class of models based on extended gauged flavour symmetries that address the hierarchical structure of fermion masses in the Standard Model (SM) through the radiative mass generation mechanism. In these frameworks, only third-generation fermions acquire tree-level masses, while the first and second generations gain their masses via quantum corrections induced by new gauge bosons, naturally explaining the observed mass hierarchy. Since the technically natural structure of fermion ma…

Evidence for enhanced mass transfer in the disc preceding the transition to the soft state in MAXI J1820 070
Pengcheng Yang, Guobao Zhang, David M. Russell, Mariano M\'endez, M. Cristina Baglio, Diego Altamirano, Yijung Yang, Payaswini Saikia, Kevin Alabarta
https://arxiv.org/abs/2507.00532

Evidence for enhanced mass transfer in the disc preceding the transition to the soft state in MAXI J1820+070
We investigate the 2018-2019 main outburst and the subsequent mini-outbursts of the black hole low-mass X-ray binary MAXI J1820+070 using optical/ultraviolet data from the Las Cumbres Observatory (LCO), the American Association of Variable Star Observers (AAVSO), and $\textit{Swift}$/UVOT, as well as X-ray data from $\textit{Insight}$-HXMT and $\textit{Swift}$/XRT. Given the high-cadence observations, we identify a broad dip-like feature in both the optical and X-ray light curves preceding the …

Muffled Murmurs: Environmental effects in the LISA stochastic signal from stellar-mass black hole binaries
Ran Chen, Rohit S. Chandramouli, Federico Pozzoli, Riccardo Buscicchio, Enrico Barausse
https://arxiv.org/abs/2507.00694

Muffled Murmurs: Environmental effects in the LISA stochastic signal from stellar-mass black hole binaries
The population of unresolved stellar-mass black hole binaries (sBBHs) is expected to produce a stochastic gravitational-wave background (SGWB) potentially detectable by the Laser Interferometer Space Antenna (LISA). In this work, we compute the imprint of astrophysical environmental effect--such as gas dynamical friction and accretion--on this background. Using the sBBHs population constraints obtained by the LIGO--Virgo--Kagra collaboration, we compute the expected SGWB and develop a phenomeno…

This https://arxiv.org/abs/2505.15998 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csAI_…

Exploring Flow-Lenia Universes with a Curiosity-driven AI Scientist: Discovering Diverse Ecosystem Dynamics
We present a method for the automated discovery of system-level dynamics in Flow-Lenia$-$a continuous cellular automaton (CA) with mass conservation and parameter localization$-$using a curiosity-driven AI scientist. This method aims to uncover processes leading to self-organization of evolutionary and ecosystemic dynamics in CAs. We build on previous work which uses diversity search algorithms in Lenia to find self-organized individual patterns, and extend it to large environments that support…

Determining Exciton Binding Energy and Reduced Effective Mass in Metal Tri-Halide Perovskites from Optical and Impedance Spectroscopy Measurements
K. Liz\'arraga, J. A. Guerra, L. A. Enrique-Moran, E. Serquen, E. Ventura, Cesar E. P. Villegas, A. R. Rocha, P. Venezuela
https://arxiv.org/abs/2506.22680

Determining Exciton Binding Energy and Reduced Effective Mass in Metal Tri-Halide Perovskites from Optical and Impedance Spectroscopy Measurements
Accurate determination of the exciton binding energy and reduced effective mass in halide perovskites is of utmost importance for the selective design of optoelectronic devices. Although these properties are currently determined by several spectroscopic techniques, complementary theoretical models are often required to bridge macroscopic and microscopic properties. Here, we present a novel method to determine these quantities while fully accounting for polarization effects due to carrier intera…

'Russian bombers are burning en masse' — Ukraine's SBU drones hit 'more than 40' aircraft in mass attack, source claims.
Fantastic operation by Ukraine's security service, launching drones from trucks parked inside Russia!
https://

'Enemy bombers are burning en masse' — Ukraine's SBU drones hit 'more than 40' Russian aircraft
"Currently, more than 40 aircraft are known to have been hit, including the A-50, Tu-95 and Tu-22 M3," a source told the Kyiv Independent.

The CARMENES search for #exoplanets around M dwarfs - occurrence rates of Earth-like planets around very low-mass stars: https://www.aanda.org/articles/aa/full_html/2025/04/aa53381-24/aa53381-24.html -> Earth-like Planets Especially Common Around Low-mass Stars: https://www.uni-heidelberg.de/en/newsroom/carmenes-data-earth-like-planets-especially-common-around-low-mass-stars

New insights on low-mass dark matter subhalo tidal tracks via numerical simulations
Alejandra Aguirre-Santaella, Miguel A. S\'anchez-Conde, Go Ogiya
https://arxiv.org/abs/2506.01152

New insights on low-mass dark matter subhalo tidal tracks via numerical simulations
Many studies assert that dark matter (DM) subhaloes without a baryonic counterpart and with an inner cusp always survive no matter the strength of the tidal force they undergo. In this work, we perform a suite of numerical simulations specifically designed to analyse the evolution of $V_\mathrm{max}$, $r_\mathrm{max}$ and concentration of low-mass DM subhaloes due to tidal stripping. We employ the improved version of the DASH code, introduced in our previous work arXiv:2207.08652 to investigate…

Heute ist wieder letzter Freitag im Monat: #CriticalMass-Tag \o/
Infos u.a. auf https://criticalmass.in

Evolution of tripartite entanglement in three-qubit Quantum Gravity-Induced Entanglement of Masses (QGEM) with quantum decoherence
Pablo Guillermo Carmona Rufo, Anupam Mazumdar, Carlos Sab\'in
https://arxiv.org/abs/2507.01007

Evolution of tripartite entanglement in three-qubit Quantum Gravity-Induced Entanglement of Masses (QGEM) with quantum decoherence
The recently introduced quantum gravity-induced entanglement of masses (QGEM) protocol aims to test the quantum nature of gravity by witnessing the entanglement produced by the virtual exchange of a graviton between two spatially superposed masses. Shortly after the original proposal, further improvements upon the experiment were suggested, including the addition of a third mass, showing that three-qubit setups can be more resilient to higher rates of decoherence caused by the interaction of th…

This https://arxiv.org/abs/2505.20758 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_mat…

$L^2$-normalized solutions of a class of $(2,q)$-Laplacian Schrödinger equations with inhomogeneous nonlinearity
In this paper, we study systematically the $L^2$-normalized solutions of a class of $(2,q)$-Laplacian Schrödinger equations with inhomogeneous nonlinearity. Our results contain the existence, non-existence, multiplicity and some asymptotic behaviors of the $L^2$ normalized solutions, covering the mass-subcritical, mass-critical and mass-supercritical cases. Some of the existence results are given sharply. The proofs are mainly based on the constrained variational methods.

Dozens of peaceful protestors, including disabled people in wheelchairs,
were arrested last Wednesday, June 25, in Washington, DC,
while protesting Trump’s so-called “One Big Beautiful Bill,”
which will slash taxes,
dramatically increase funding for war and immigration enforcement,
and make devastating cuts to vital, popular programs like Medicaid and the Supplemental Nutrition Assistance Program (SNAP).

‘These cuts are death sentences’: Trump’s ‘Big, Beautiful Bill’ passes Senate
“These cuts are death sentences... If this bill is passed and its rules are codified, this will cause mass loss of insurance for many people in need for years to come."

Evaluating the Contextual Integrity of False Positives in Algorithmic Travel Surveillance
Alina Wernick, Alan Medlar, Sofia S\"oderholm, Dorota G{\l}owacka
https://arxiv.org/abs/2506.00218

Evaluating the Contextual Integrity of False Positives in Algorithmic Travel Surveillance
International air travel is highly surveilled. While surveillance is deemed necessary for law enforcement to prevent and detect terrorism and other serious crimes, even the most accurate algorithmic mass surveillance systems produce high numbers of false positives. Despite the potential impact of false positives on the fundamental rights of millions of passengers, algorithmic travel surveillance is lawful in the EU. However, as the system's processing practices and accuracy are kept secret by l…

Someone mentioned the "awesome" web site for Milwaukee Critical Mass, but I think they may have been taking the piss...
But honestly, I'd rather see this than an overdone 'full of shit' web site with too much.
As it is, it gives the basic info. Sometimes that's all you need.
Although (sigh) it looks like it hasn't been updated since April.
➡️

Trump administration asks Supreme Court to allow mass federal layoffs
https://www.usatoday.com/story/news/politics/2025/06/02/trump-supreme-court-federal-layoffs/83991774007/

Trump administration asks Supreme Court to let it move forward with mass layoffs of federal workforce (Melissa Quinn/CBS News)
https://www.cbsnews.com/news/trump-supreme-court-reductions-in-force-layoffs-federal-workers/
http://www.memeorandum.com/250602/p113#a250602p113

X-ray polarization of Z-type neutron star low-mass X-ray binaries -- I. Model-independent, time-resolved X-ray polarimetry
Andrea Gnarini, Francesco Ursini, Giorgio Matt, Stefano Bianchi, Fiamma Capitanio, Massimo Cocchi, Sergio Fabiani, Ruben Farinelli, Antonella Tarana
https://arxiv.org/abs/2507.00302

X-ray polarization of Z-type neutron star low-mass X-ray binaries -- I. Model-independent, time-resolved X-ray polarimetry
Z-sources are a particular class of neutron star low-mass X-ray binaries characterized by a wide Z-like track in their hard colorsoft color (or hardness-intensity) diagrams, with three branches: the horizontal (HB), the normal (NB), and the flaring branch (FB). Spectropolarimetric observations with the Imaging X-ray Polarimetry Explorer (IXPE) show that the polarization in these sources varies along the Z-track, reaching unexpectedly high values in the HB. In this work, we collected all the pol…

Dissociation limits in Density Functional Theory
Guy Bouchitt\'e, Giuseppe Buttazzo, Thierry Champion, Luigi De Pascale
https://arxiv.org/abs/2507.00063

Dissociation limits in Density Functional Theory
In this paper we consider the {\it Density Functional Theory} (DFT) framework, where a functional of the form $$F_\eps(ρ)=\eps T(ρ)+bC(ρ)-U(ρ)$$ has to be minimized in the class of non-negative measures $ρ$ which have a prescribed total mass $m$ (the total electronic charge). The parameter $\eps$ is small and the terms $T$, $C$, $U$ respectively represent the kinetic energy, the electronic repulsive correlation, the potential interaction term between electrons and nuclei. Several expressio…

This https://arxiv.org/abs/2308.13301 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_csGT_…

On Incentivizing Social Information Sharing Through Routing Games
Crowdsourcing services, such as Waze, leverage a mass of mobile users to learn massive point-of-interest (PoI) information while traveling and share it as a public good. Given that crowdsourced users mind their travel costs and possess various preferences over the PoI information along different paths, we formulate the problem as a novel non-atomic multi-path routing game with positive network externalities among users in social information sharing. In the absence of any incentive design, our p…

Biased rate estimates in bump-hunt searches
William Murray, "Matt O'Neill", "Finn O'Gara"
https://arxiv.org/abs/2506.01505 http…

Biased rate estimates in bump-hunt searches
The cleanest way to discover a new particle is generally the "bump-hunt" methodology: looking for a localised excess in a mass (or related) distribution. However, if the mass of the particle being discovered is not known the procedure of quoting the most significant excess seen is "greedy", and random fluctuations from the background can be merged with the signal. This means that an observed 3σ evidence probably has the rate over-estimated by of order 10% and the mass uncertainty underestimate…

“Every part of society, every citizen of this country has a role to play,” #warmonger #Starmer
Well Keith, I'm fucking not going to play any part in your plans for mass destruction, and I assure you, nor will any of my family.
‘If government cared about security, it would end child pove…

The Density Profile of Dynamical Halos
Tristen Shields, Edgar M. Salazar, Eduardo Rozo, Aakanksha Adya, Calvin Osinga, Ze'ev Vladimir
https://arxiv.org/abs/2507.00410

The Density Profile of Dynamical Halos
Among the most fundamental properties of a dark matter halo is its density profile. Motivated by the recent proposal by García et al. [R. García et. al., MNRAS 521, 2464 (2023)] to define a dynamical halo as the collection of orbiting particles in a gravitationally bound structure, we characterize the mean and scatter of the orbiting profile of dynamical halos as a function of their orbiting mass. We demonstrate that the orbiting profile of individual halos at fixed mass depends on a single d…

Shape Shifting Light Dark Matter Solitons
Dor Ben-Amotz
https://arxiv.org/abs/2506.01282 https://arxiv.org/pdf/2506.01282

Shape Shifting Light Dark Matter Solitons
Dark matter consisting of a Bose-Einstein-Condensate (BEC) of ultra-light particles is predicted to have a soliton shape that shifts with the dark matter mass fraction in galaxies with a centrally localized stellar mass (such as a black hole). In the self-gravitating dark matter limit, the predicted cored soliton shape is consistent with previous numerical predictions and analytical approximations. As the dark matter mass fraction decreases, the soliton is predicted to become increasingly cusp …

RS Sagittarii: Revealing the component spectra and the mass transfer
Hicran Bak{\i}\c{s}, \"Omr\"um Hilal Y{\i}ld{\i}z, Volkan Bak{\i}\c{s}, G\"okhan Y\"ucel
https://arxiv.org/abs/2506.01516

RS Sagittarii: Revealing the component spectra and the mass transfer
We present an analysis of high-resolution (R ~ 48000) spectroscopic and photometric data of RS Sgr, a short-period Algol-type binary system. For the first time, precise spectroscopic and absolute parameters of the system have been determined. The primary component is identified as a B3 main-sequence star with an effective temperature of 19000K, while the secondary is classified as an A0-type star with a temperature of 9700 K. The secondary appears to have recently evolved off the main sequence …

Nucleon mass: trace anomaly and $\sigma$-terms
Martin Hoferichter, Jacobo Ruiz de Elvira
https://arxiv.org/abs/2506.23902 https://arx…

Nucleon mass: trace anomaly and $σ$-terms
We give a pedagogical introduction to the origin of the mass of the nucleon. We first review the trace anomaly of the energy-momentum tensor, which generates most of the nucleon mass via the gluon fields and thus contributes even in the case of vanishing quark masses. We then discuss the contributions to the nucleon mass that do originate from the Higgs mechanism via the quark masses, reviewing the current status of nucleon $σ$-terms that encode the corresponding matrix elements.

Giant Outer Transiting Exoplanet Mass (GOT 'EM) Survey - Confirmation of a Long-period Giant #Planet Discovered with a Single TESS Transit: https://iopscience.iop.org/article/10.3847/1538-3881/add88b -> UNM astronomers confirm new gas giant exoplanet with help from citizen scientists worldwide: https://news.unm.edu/news/unm-astronomers-confirm-new-gas-giant-exoplanet-with-help-from-citizen-scientists-worldwide -> NASA exoplanet-hunting spacecraft and citizen scientists discover a cool new alien world: https://www.space.com/astronomy/exoplanets/nasa-exoplanet-hunting-spacecraft-and-citizen-scientists-discover-a-cool-new-alien-world

CHemical Evolution in MassIve star-forming COres (CHEMICO). I. Evolution of the temperature structure
F. Fontani (INAF-Osservatorio Astrofisico di Arcetri, Florence, Laboratory for the study of the Universe and eXtreme phenomena, Max-Planck Institut for Extraterrestrial physics), V. M. Rivilla (Centro de Astrobiolog\'ia), E. Roueff (Laboratory for the study of the Universe and eXtreme phenomena), H. Mart\'in-Caballero (Centro de Astrobiolog\'ia), L. Bizzocchi (Dipartimento …

CHemical Evolution in MassIve star-forming COres (CHEMICO). I. Evolution of the temperature structure
Increasing evidence shows that most stars in the Milky Way, including the Sun, are born in star-forming regions containing also high-mass stars, but due to both observational and theoretical challenges, our comprehension of their chemical evolution is far less clear than that of their low-mass counterparts. We present the project "CHemical Evolution of MassIve star-froming COres" (CHEMICO). The project aims at investigating any aspect of the chemical evolution of high-mass star-forming cores by…

This https://arxiv.org/abs/2403.06006 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

Real-time observables in de Sitter thermodynamics
We study real-time finite-temperature correlators for free scalars of any mass in a $dS_{d+1}$ static patch in any dimension. We show that whenever the inverse temperature is a rational multiple of the inverse de Sitter temperature, certain Matsubara poles of the symmetric Wightman function disappear. At the de Sitter temperature, we explicitly show how the Lorentzian thermal correlators can all be obtained by analytic continuations from the round $S^{d+1}$. We establish the precise relation be…

Mass media and therefore soon also (owners of) mainstream AI models have an incentive to report mostly about outrageous claims (like Elon Musk's): these attract more attention and therefore more advertiser money, and may also help spread the AI model owner's agenda & propaganda.

Existence and multiplicity of normalized solutions for the quasi-linear Schr\"{o}dinger equations with mixed nonlinearities
Qihan He, Hao Wang
https://arxiv.org/abs/2507.00375

Existence and multiplicity of normalized solutions for the quasi-linear Schrödinger equations with mixed nonlinearities
In this paper, we study the existence and multiplicity of the normalized solutions to the following quasi-linear problem \begin{equation*} -Δu-Δ(|u|^2)u+λu=|u|^{p-2}u+τ|u|^{q-2}u, \text{ in }\mathbb{R}^N,~ 1\leq N\leq4, \end{equation*} with prescribed mass $$\int_{\mathbb{R}^N}|u|^2dx=a ,$$ where $λ\in\mathbb{R}$ appears as a Lagrange multiplier and the parameters $a,τ$ are all positive constants. We are concerned about the mass-mixed case $2

Gone with the Wind: JWST-MIRI Unveils a Strong Outflow from the Quiescent Stellar-Mass Black Hole A0620-00
Zihao Zuo, Gabriele Cugno, Joseph Michail, Elena Gallo, David M. Russell, Richard M. Plotkin, Fan Zou, M. Cristina Baglio, Piergiorgio Casella, Fraser J. Cowie, Rob Fender, Poshak Gandhi, Sera Markoff, Federico Vincentelli, Fraser Lewis, Jon M. Miller, James C. A. Miller-Jones, Alexandra Veledina

Gone with the Wind: JWST-MIRI Unveils a Strong Outflow from the Quiescent Stellar-Mass Black Hole A0620-00
We present new observations of the black hole X-ray binary A0620-00 using the Mid-Infrared Instrument on the James Webb Space Telescope, during a state where the X-ray luminosity is 9 orders of magnitude below Eddington, and coordinated with radio, near-infrared and optical observations. The goal is to understand the nature of the excess mid-infrared (MIR) emission originally detected by Spitzer red-ward of 8 $μ$m. The stellar-subtracted MIR spectrum is well-modeled by a power law with a spect…

Critical Metallicity of Cool Supergiant Formation. II. Physical Origin
Po-Sheng Ou, Ke-Jung Chen
https://arxiv.org/abs/2506.01753 https://

Critical Metallicity of Cool Supergiant Formation. II. Physical Origin
This study investigates the physical origin of the critical metallicity ($Z_{\rm c}\sim 0.001$) required for the formation of cool supergiants, as revealed by stellar evolution models. Using model grids that vary in mass, metallicity, opacity, and nuclear reaction rates, we identify a threshold terminal-age main-sequence (TAMS) radius ($R_{\rm T}$) that determines whether a star of a given mass can evolve into the red supergiant (RSG) phase. Through stellar models and homology relations, we sho…

NOW— Mass ICE arrests happened/are happening at the Manhattan immigration court at 290 Broadway on the 20th floor.
I was just outside the building and an observer came out crying, confirmed they witnessed people getting detained outside courtrooms while families watched and wept.
https://

Mass layoffs likely to remain blocked, for now, thanks to a Supreme Court footnote - Government Executive
https://www.govexec.com/workforce/2025/06/mass-layoffs-likely-remain-blocked-now-thanks-supreme-court-footnote/406381/

This https://arxiv.org/abs/2410.08862 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Test for LISA foreground Gaussianity and stationarity: extreme mass-ratio inspirals
Extreme Mass Ratio Inspirals (EMRIs) are key observational targets for the Laser Interferometer Space Antenna (LISA) mission. Unresolvable EMRI signals contribute to the formation of a gravitational wave background (GWB). Characterizing the statistical features of the GWB from EMRIs is of great importance, as EMRIs will ubiquitously affect large segments of the inference scheme. In this work, we apply a frequentist test for GWB Gaussianity and stationarity, exploring three astrophysically-motiv…

A review on recent progresses in the study of low energy $\pi\pi$ and $\pi N$ scatterings
Qu-Zhi Li, Zhiguang Xiao, Han-Qing Zheng
https://arxiv.org/abs/2505.24674

A review on recent progresses in the study of low energy $ππ$ and $πN$ scatterings
We summarize new results on the studies of $ππ$ and $πN$ scatterings. They include the finding of a negative-parity nucleon pole with a mass lower than the nucleon mass, and the pole trajectory of $f_0(500)$ with respect to varying pion masses. The results are obtained from model-independent dispersion analyses. We also study the thermal properties of $f_0(500)$ based on the $O(N)$ $σ$ model and $N/D$ method.

Benchmark brown dwarfs -- I. A blue M2 T5 wide binary and a probable young M4 [T7 T8] hierarchical triple
Z. H. Zhang, F. Navarete, M. C. G\'alvez-Ortiz, H. R. A. Jones, A. J. Burgasser, P. Cruz, F. Marocco, N. Lodieu, Y. Shan, B. Gauza, R. Raddi, M. R. Huang, R. L. Smart, S. Baig, G. Cheng, D. J. Pinfield
https://arxi…

Benchmark brown dwarfs -- I. A blue M2 + T5 wide binary and a probable young M4 + [T7 + T8] hierarchical triple
Benchmark brown dwarfs in wide binary systems are crucial for characterizing substellar objects and calibrating atmospheric and evolutionary models. However, brown dwarf benchmarks with subsolar metallicity, very cool temperatures, or suitability for dynamical mass measurements are rare, limiting our understanding across the full range of mass, age, and metallicity. We present the discovery of two new multiple systems containing T dwarf companions, identified through a targeted search using Cat…

The Evolutionary Pathway of Low-mass Supermassive Black Holes at Intermediate Redshift: Insights from the JADES Survey
Atsushi Hoshi, Toru Yamada
https://arxiv.org/abs/2507.01293 …

The Evolutionary Pathway of Low-mass Supermassive Black Holes at Intermediate Redshift: Insights from the JADES Survey
Understanding the relationship between supermassive black holes (SMBHs) and their host galaxies at different redshifts is crucial for unraveling the processes of SMBH-galaxy co-evolution. We present the properties of nine type 1 Active Galactic Nuclei (AGNs) at intermediate redshift ($2

Alligator Alcatraz immigrant prison camp is Florida's sadistic 'one-stop shop' for mass deportation (Marisa Kabas/The Handbasket)
https://www.thehandbasket.co/p/alligator-alcatraz-florida-opening-trump-desantis
http://www.memeorandum.com/250630/p152#a250630p152

Kuo expects Apple to mass produce a Vision Pro with M5 in Q3 2025, a Vision Air in Q3 2027, a Vision Pro with a new design and XR glasses in H2 2028, and more (Marcus Mendes/9to5Mac)
https://9to5mac.com/2025/06/29/apple-working-on-7-head-mounted-products/

Kuo: Apple working on 7 head-mounted products - 9to5Mac
According to him, the company has at least seven head-worn devices in development across two product families, one coming in 2025.

This https://arxiv.org/abs/2504.19364 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hept…

A Perturbatively Stable Non-Supersymmetric String Model with AdS Vacuum
We present a construction of a perturbatively stable non-supersymmetric type II closed string model in four dimensions. It is based on a freely acting Scherk-Schwarz Z2-deformation of a supersymmetric construction which is recovered in appropriate decompactification limits. The model exhibits also the so-called misaligned supersymmetry with alternating signs for the number difference between bosons and fermions at successive mass levels. The tree-level spectrum is tachyon free for any value of …

Constraint on the Deviation of Kerr Metric via Bumpy Parameterization and Particle Swarm Optimization in Extreme Mass-Ratio Inspirals
Xiaobo Zou, Xingyu Zhong, Wen-Biao Han, Soumya D. Mohanty
https://arxiv.org/abs/2506.21955

Constraint on the Deviation of Kerr Metric via Bumpy Parameterization and Particle Swarm Optimization in Extreme Mass-Ratio Inspirals
Measurement of deviations in the Kerr metric using gravitational wave (GW) observations will provide a clear signal of new Physics. Previous studies have developed multiple parameterizations (e.g. ``bumpy" spacetime) to characterize such deviations in extreme mass ratio inspirals (EMRI) and employed analyses based on the Fisher information matrix (FIM) formalism to quantify the constraining power of space-borne GW detectors like LISA and Tianqin, e.g., achieving a constraint sensitivity levels …

This https://arxiv.org/abs/2412.18095 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Zee model in a non-holomorphic modular $A_4$ symmetry
We study a Zee model in a non-holomorphic modular $A_4$ flavor symmetry in which we find good predictions in both the cases of normal and inverted hierarchy. Parameter reduction on neutrino sector occurs due to large mass hierarchies between charged-leptons mass eigenvalues and new singly-charged bosons in addition to this flavor symmetry. As a result, we have two complex free parameters including modulus $τ$. We show several predictions in terms of verifiable observables such as Dirac CP, Maj…

This https://arxiv.org/abs/2504.05372 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The slowest spinning Galactic-field spider PSR J1932+2121: A history of inefficient mass transfer
The Five-hundred-meter Aperture Spherical Telescope is discovering hundreds of new pulsars, including a slowly spinning compact binary millisecond pulsar (spin period $P_{\rm spin}=14.2$\,ms) which showed radio eclipses and evidence of ablation of its companion: PSR J1932+2121. Its orbital period is $P_{\rm orb}=0.08$\,d and the minimum companion mass is estimated as 0.12\,\Msun. Hence, this pulsar is classified as part of the Galactic-field spider (redback) population. However, it spins almost…

A government ban on Hungary’s Pride parade backfired Saturday as over 100,000 people marched through Budapest,
far more than usual
PM Viktor Orban warned people to stay away, threatening “clear legal consequences.”
But the warnings only turned a modest event into a mass rally against his government

Searching for charged Higgs bosons via $e^ e^- \to H^\pm W^\mp S$ at the ILC
Brahim Ait Ouazghour, Abdesslam Arhrib, Kingman Cheung, Es-said Ghourmin, Mohamed Krab, Larbi Rahili
https://arxiv.org/abs/2506.01554

Searching for charged Higgs bosons via $e^+ e^- \to H^\pm W^\mp S$ at the ILC
We investigate the phenomenology of the charged Higgs boson at the International Linear Collider (ILC) within the framework of the type-X Two-Higgs Doublet Model (2HDM), where a light charged Higgs boson, with a mass around 200 GeV or even smaller than top quark mass, is still being consistent with flavor physics data as well as with the colliders experimental data. In the theoretically and experimentally allowed parameter space, the $e^+ e^- \to H^\pm W^\mp S$ (with $S = H, A$) production proc…

This https://arxiv.org/abs/2502.17570 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Effects of spacetime geometry on neutrino oscillation inside a Core-Collapse Supernova
Neutrinos are excellent probes of the inner structures of supernovas. However, an understanding of their dynamics remains incomplete, which is crucial for properly interpreting the detector data. The huge matter density inside a core collapse supernova affects the self-coupling of the neutrinos through a geometrical four-fermion interaction induced by spacetime torsion generated by the fermions themselves. For normal mass hierarchy, the effect is negligible; for inverted mass hierarchy however,…

This https://arxiv.org/abs/2410.14774 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Experimental targets for dark photon dark matter
Ultralight dark photon dark matter features distinctive cosmological and astrophysical signatures and is also supported by a burgeoning direct-detection program searching for its kinetic mixing with the ordinary photon over a wide mass range. Dark photons, however, cannot necessarily constitute the dark matter in all of this parameter space. In minimal models where the dark photon mass arises from a dark Higgs mechanism, early-Universe dynamics can easily breach the regime of validity of the lo…

Modeling the Mass Distribution and Gravitational Potential of Nearby Disk Galaxies: Implications for the ISM Dynamical Equilibrium
Vivek Vijayakumar, Jiayi Sun, Eve C. Ostriker, Enrico M. Di Teodoro, Konstantin Haubner, Chang-Goo Kim, Adam K. Leroy, Miguel Querejeta
https://arxiv.org/abs/2506.22381…

Modeling the Mass Distribution and Gravitational Potential of Nearby Disk Galaxies: Implications for the ISM Dynamical Equilibrium
We characterize stellar, gas, and dark matter mass distributions for 17 nearby massive disk galaxies from the PHANGS sample. This allows us to compute the gravitational potential that vertically confines the interstellar gas and determines its equilibrium scale height and weight. We first combine dynamical mass constraints from existing CO and HI rotation curves together with stellar and gas mass estimates from near-infrared, CO, and HI data. These estimates incorporate current best practices i…

Structure of Kerr black hole spacetimes in Weyl conformal gravity
Miguel Yulo Asuncion, Keith Horne, Reinosuke Kusano, Martin Dominik
https://arxiv.org/abs/2507.01379

Structure of Kerr black hole spacetimes in Weyl conformal gravity
We analyze the stationary, uncharged, rotating, vacuum solution to Weyl conformal gravity. We elucidate the causal and ergoregion structure of the spacetimes found in the parameter space of the metric for positive mass. These are then compared to the corollary Kerr, Kerr-de Sitter, and Kerr-Anti-de Sitter solutions to general relativity. Additionally, we investigate and derive the extremal limits for both the horizons and ergosurfaces of the spacetimes.

The Evolution of Pop III.1 Protostars Powered by Dark Matter Annihilation. I. Fiducial model and first results
Devesh Nandal, Konstantinos Topalakis, Jonathan C. Tan, Vasilisa Sergienko, Ana\"is Pauchett, Maya Petkova
https://arxiv.org/abs/2507.00870

The Evolution of Pop III.1 Protostars Powered by Dark Matter Annihilation. I. Fiducial model and first results
The existence of billion-solar-mass quasars at redshifts $z \gtrsim 7$ poses a formidable challenge to theories of black hole formation, requiring pathways for the rapid growth of massive seeds. Population III.1 stars, forming in pristine, dense dark matter (DM) minihalos, are compelling progenitors. This study presents a suite of stellar evolution models for accreting Pop III.1 protostars, calculated with the \textsc{GENEC} code. We systematically explore a wide parameter space, spanning ambie…

Constraining the Stellar-to-Halo Mass Relation with Galaxy Clustering and Weak Lensing from DES Year 3 Data
G. Zacharegkas, C. Chang, J. Prat, W. Hartley, S. Mucesh, A. Alarcon, O. Alves, A. Amon, K. Bechtol, M. R. Becker, G. Bernstein, J. Blazek, A. Campos, A. Carnero Rosell, M. Carrasco Kind, R. Cawthon, R. Chen, A. Choi, J. Cordero, C. Davis, J. Derose, H. Diehl, S. Dodelson, C. Doux, A. Drlica-Wagner, K. Eckert, T. F. Eifler, J. Elvin-Poole, S. Everett, X. Fang, A. Ferte, M. Gatti,…

Constraining the Stellar-to-Halo Mass Relation with Galaxy Clustering and Weak Lensing from DES Year 3 Data
We develop a framework to study the relation between the stellar mass of a galaxy and the total mass of its host dark matter halo using galaxy clustering and galaxy-galaxy lensing measurements. We model a wide range of scales, roughly from $\sim 100 \; {\rm kpc}$ to $\sim 100 \; {\rm Mpc}$, using a theoretical framework based on the Halo Occupation Distribution and data from Year 3 of the Dark Energy Survey (DES) dataset. The new advances of this work include: 1) the generation and validation o…

The \emph{Echo 12-23 Texture}: A Novel Flavour Paradigm for Neutrinos
Manash Dey, Subhankar Roy
https://arxiv.org/abs/2506.23887 https://

The \emph{Echo 12-23 Texture}: A Novel Flavour Paradigm for Neutrinos
We construct a flavour guided model that realises the distinctive \emph{Echo 12-23 Texture} in the neutrino mass matrix through a non-trivial interplay of symmetries. While the model accounts for charged lepton mass hierarchy, the texture offers interesting insights specifically into neutrino mass ordering and flavour dynamics. With clear imprints on low energy observables, the framework provides a minimal yet testable path toward understanding the origin of neutrino properties.

Atmospheric model-trained machine learning selection and classification of ultracool TY dwarfs
Ankit Biswas
https://arxiv.org/abs/2507.00957 https://

Atmospheric model-trained machine learning selection and classification of ultracool TY dwarfs
The T and Y spectral classes represent the coolest and lowest-mass population of brown dwarfs, yet their census remains incomplete due to limited statistics. Existing detection frameworks are often constrained to identifying M, L, and early T dwarfs, owing to the sparse observational sample of ultracool dwarfs (UCDs) at later types. This paper presents a novel machine learning framework capable of detecting and classifying late-T and Y dwarfs, trained entirely on synthetic photometry from atmos…

This https://arxiv.org/abs/2501.12905 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

The impact of hyperons on neutron star mergers: gravitational waves, mass ejection and black hole formation
We study the influence of hyperons in binary neutron star (NS) mergers considering a total of 14 temperature dependent equations of state (EoSs) models which include hyperonic degrees of freedom and partly delta resonances. Thermally produced hyperons induce a higher heat capacity and a lower thermal index, i.e. a reduced thermal pressure for a given amount of thermal energy, compared to purely nucleonic models. We run a large set of relativistic hydrodynamics simulations of NS mergers to explo…

Replaced article(s) found for astro-ph.SR. https://arxiv.org/list/astro-ph.SR/new
[1/1]:
- The Mass of the Vela Pulsar Progenitor and the Age of the Vela-Puppis Complex
Murphy, Barrientos, Andrae, Guzman, Williams, Dalcanton, Koplitz

Dark matter as the source of neutrino mass: theory overview and experimental prospects
Ivania M. \'Avila, Anirban Karan, Sanjoy Mandal, Soumya Sadhukhan, Jos\'e W. F. Valle
https://arxiv.org/abs/2506.24027

Dark matter as the source of neutrino mass: theory overview and experimental prospects
We review theoretical frameworks in which small neutrino masses arise radiatively through interactions with a dark sector that also accounts for cosmological dark matter. A prototypical example is provided by scotogenic schemes, that extend the inert Higgs doublet model. We outline their key features and limitations, including possible completions, such as the revamped setup. The phenomenological signatures of both fermionic and bosonic scotogenic dark matter are discussed, along with scoto-see…

Population Synthesis Study on the Binary Origin of Type Ibn Supernovae
Takatoshi Ko, Tomoya Kinugawa, Daichi Tsuna, Ryosuke Hirai, Yuki Takei
https://arxiv.org/abs/2506.00931

Population Synthesis Study on the Binary Origin of Type Ibn Supernovae
Type Ibn supernovae (SNe) are a class of SN explosions whose progenitors are surrounded by dense helium-rich circumstellar matter (CSM). Some models have been proposed for how to form the dense CSM, with promising scenarios involving either binaries with a low-mass ($\lesssim 3~M_\odot$) helium (He) star, or mergers following common envelope phases between a He star and a compact object. Using rapid binary population synthesis calculations, we estimate the event rate of these channels and compa…

This https://arxiv.org/abs/2404.07271 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Cautionary tales on heating-rate prescriptions in kilonovae
A major ingredient for kilonova lightcurves is the radioactive heating rate and its dependence on the electron fraction and velocity of the ejecta and, in principle, on the nuclear mass formula. Heating-rate formulae commonly used as the basis for kilonova models previously employed in the literature produce substantially different outputs for high electron fractions ($Y_{e} \gtrsim 0.3$) and at late times ($t \gtrsim 1$d) compared to newer prescriptions. Here, we employ standard semi-analytica…

The first phase of mass transfer in low-mass binaries: neither stable nor a common envelope
Gijs Nelemans, Holly Preece, Karel Temmink, James Munday, Onno Pols
https://arxiv.org/abs/2506.16832

The first phase of mass transfer in low-mass binaries: neither stable nor a common envelope
The masses of the white dwarfs in a binary carry information about previous mass-transfer phases. The core mass -- radius relation of low-mass giants gives the size of the progenitor of a helium white dwarf at the moment it last filled its Roche lobe. Previously, we used this information for a few observed systems to propose a new mass-transfer type, based on an angular momentum balance. Our aim is to investigate if stable mass transfer instead of the angular momentum prescription is consiste…

Searching for Di-Higgs Signatures of Light Charged Scalars
Guglielmo Coloretti, Andreas Crivellin, Syuhei Iguro
https://arxiv.org/abs/2507.00121 https://…

Searching for Di-Higgs Signatures of Light Charged Scalars
The excess in $t\to b\overline{b}c$ observed by ATLAS points towards a charged Higgs boson with a mass around 130$\,$GeV, consistent with the expectations from the $B$ anomalies, i.e.$~R_{D^{(*)}}$ and $b\to s\ell^+\ell^-$ data. As a non-minimal flavour structure is required for an explanation of these observables, this points towards a two-Higgs-doublet model with generic Yukawa couplings. Such a scenario predicts a sizable cross section for the pair production of the charged Higgs at the Larg…

This https://arxiv.org/abs/2412.14844 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Astrometry-Only Detection of Microlensing Events with Gaia
Astrometric microlensing events occur when a massive object passes between a distant source and the observer, causing a shift of the light centroid. The precise astrometric measurements of the Gaia mission provide an unprecedented opportunity to detect and analyze these events, revealing properties of lensing objects such as their mass and distance. We develop and test the Gaia Astrometric Microlensing Events (GAME) Filter, a software tool to identify astrometric microlensing events and derive …

Searching for long-lived light neutralinos from $B$-meson decays with baryonic R-parity violation at Belle II
Emilie Bertholet, Claudio O. Dib, Sara P. Gandelman, Juan Carlos Helo, Valery E. Lyubovitskij, Minakshi Nayak, Nicol\'as A. Neill, Abner Soffer, Zeren Simon Wang
https://arxiv.org/abs/2507.00359

Searching for long-lived light neutralinos from $B$-meson decays with baryonic R-parity violation at Belle II
In a supersymmetry scenario with R-parity violation (RPV), neutralinos with GeV-scale mass, which are necessarily bino-like, are allowed by all constraints and can be produced in association with a baryon in $B$-meson decays via certain $\bar U \bar D \bar D$ operators. In this work, we investigate this scenario with two non-vanishing RPV couplings at the low-energy scale. With one RPV coupling governing the neutralino production rate and another determining its lifetime, this scenario can lead…

Light Curve Analysis Of W-uma Type Binary Systems Rz Umi, Oq Uma, Lp Uma
Marko Grozdanovi\'c, Gojko {\DJ}ura\v{s}evi\'c
https://arxiv.org/abs/2507.00768

Light Curve Analysis Of W-uma Type Binary Systems Rz Umi, Oq Uma, Lp Uma
This study presents new, high-quality, optical photometric observations of three W UMa type contact binaries. The analysis of the corresponding light curves is made using Djurasevic's inverse problem method. To explain the light curve asymmetries and variations, we used the Roche model that involved regions containing spots on the components. The fundamental parameters of these systems were derived, including the mass ratios determined using the q-search method. Hypotheses involving active surf…

Application range of perfect spin hydrodynamics
Zbigniew Drogosz, Wojciech Florkowski, Valeriya Mykhaylova
https://arxiv.org/abs/2506.01537 https://…

Application range of perfect spin hydrodynamics
The application range of perfect spin hydrodynamics is studied in two cases: one based on the classical spin description and the other using a quantum spin density matrix (Wigner function). Different forms of the conditions connecting the components of the spin polarization tensor, particle mass, temperature, and hydrodynamic flow are introduced, and their mutual relations are explained. The results obtained are important for practical applications of spin hydrodynamics to model heavy-ion colli…

Application of the 3-Loop FlexibleEFTHiggs Method to the MSSM and the NMSSM
Thomas Kwasnitza, Dominik St\"ockinger, Alexander Voigt, Johannes W\"unsche
https://arxiv.org/abs/2506.22208

Application of the 3-Loop FlexibleEFTHiggs Method to the MSSM and the NMSSM
We perform an extensive analysis of the light CP-even Higgs boson pole mass in the MSSM and its dependencies on various parameters based on the 3-loop \texttt{Flexible-EFTHiggs} hybrid calculation which is implemented and publicly avaiable since recently in \texttt{FlexibleSUSY}. Our focus lies on the study of the robustness of the approach in scenarios of highly non-degenerate SUSY mass spectra. Also, we present an improved Higgs mass calculation in the NMSSM based on the same approach, which …