Tootfinder

Signatures and bias assessment of rotation in galaxy cluster members
Davide Castellani, Giovanni Ferrami, Claudio Grillo, Giuseppe Bertin
https://arxiv.org/abs/2508.18354 https:…

Signatures and bias assessment of rotation in galaxy cluster members
We investigate the possible presence of systematic rotation in the member galaxies of a sample of 17 nearby ($z<0.1$), rich (at least 80 identified members) Abell clusters. We also assess the extent to which low-number statistics may influence the recovery of the rotation parameters. Following the methods often used in the context of globular clusters and of clusters of galaxies, we estimate a representative value of the systematic rotation velocity and the position angle of the projected rotat…

Asymptotics of shortest filling closed multi-geodesics
Yue Gao, Zhongzi Wang, Yunhui Wu
https://arxiv.org/abs/2508.17566 https://arxiv.org/pdf/2508.17566…

Asymptotics of shortest filling closed multi-geodesics
In this paper, we investigate the asymptotics of shortest filling closed multi-geodesics of closed hyperbolic surfaces as systole $\to 0$ or as genus $\to \infty$. We first show that for a closed hyperbolic surface $X_g$ of genus $g$, the length of a shortest filling closed multi-geodesic of $X_g$ is uniformly comparable to $$\left(g+\sum\limits_{\textit{closed geodesic }γ\subset X_g, \ \ell(γ)<1}\log \left(\frac{1}{\ell(γ)}\right)\right).$$ As an application, we show that as $g\to \infty$, …

Exploring nanoscale metallic multilayer Ta/Cu films: Structure and some insights on deformation and strengthening mechanisms
Daniel Karpinski, Tomas Polcar, Andrey Bondarev
https://arxiv.org/abs/2508.18928

Exploring nanoscale metallic multilayer Ta/Cu films: Structure and some insights on deformation and strengthening mechanisms
Nanoscale metallic multilayer (NMM) films are systems offering insight into the role of interfaces in metal plasticity, deformation, and strengthening mechanisms. Magnetron sputtering was used to fabricate the Ta-Cu NMM films with a periodicity (equal Ta and Cu layer thickness) from 6 to 80 nm, with resulting structure exhibiting strongly incoherent tetragonal beta-Ta and face-centered cubic Cu phase. The high-load indentation test, TEM studies, and the rCLS model collectively demonstrate that …

I was late to pick my daughter up from camp because #NYCParks closed a huge portion of Corona-Meadows Flushing Park. Apparently for some kind of music festival. There was, of course, no bike detour. The area has highways running through it, and the bridges over the highways are cordoned off. How do you get to

Identifying Fine-grained Forms of Populism in Political Discourse: A Case Study on Donald Trump's Presidential Campaigns
Ilias Chalkidis, Stephanie Brandl, Paris Aslanidis
https://arxiv.org/abs/2507.19303

Identifying Fine-grained Forms of Populism in Political Discourse: A Case Study on Donald Trump's Presidential Campaigns
Large Language Models (LLMs) have demonstrated remarkable capabilities across a wide range of instruction-following tasks, yet their grasp of nuanced social science concepts remains underexplored. This paper examines whether LLMs can identify and classify fine-grained forms of populism, a complex and contested concept in both academic and media debates. To this end, we curate and release novel datasets specifically designed to capture populist discourse. We evaluate a range of pre-trained (larg…

The Persistence of Nonlinear Gravitational Wave Memory
Robert R. Caldwell
https://arxiv.org/abs/2506.20751 https://arxiv.org/pdf/2506…

The Persistence of Nonlinear Gravitational Wave Memory
Nonlinear gravitational wave memory is a surprise of theoretical physics. Whereas it is understood that a gravitational wave induces oscillatory squeezing and stretching motion in a collection of freely-falling test masses, it is unexpected that the wave leaves a residual displacement of the test masses. This displacement is the tribute in memoriam to the passing wave. The memory originates in a nonlinear feature of gravitation. Whilst merging black holes are a significant source of gravitation…

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

3C 403: a candidate neutrino-emitting radio galaxy
Gabriele Bruni, Loredana Bassani, Sergio Alves Garre, Manuela Molina, Angela Malizia, Mariateresa Fiocchi, James Rodi, Antoine Kouchner, Alexis Coleiro, Julien Aublin, Giulia Illuminati, Francesca Panessa, Angela Bazzano, Lorenzo Natalucci, Pietro Ubertini
https://arxiv.org/abs/…

3C 403: a candidate neutrino-emitting radio galaxy
3C 403 is a well known FRII radio galaxy, whose jets extend up to the kpc scale. In this letter, we present its identification as the second most significant source among the more than 150 inspected using the 15-year neutrino dataset of the ANTARES Collaboration, possibly making it the first radio galaxy with neutrino emission. Following the previous association of blazars with netrinos events, we aimed at studying the jet properties and its possible role in neutrino production. We collected mu…

When do you start feeling like a person and not a collection of impulses you don’t understand?

The life and times of dark matter haloes: what will I be when I grow up?
Julian Onions, Frazer Pearce, Alexander Knebe, Meghan Gray, Roan Haggar, Ulrike Kuchner, Ana Contreras-Santos, Gustavo Yepes, Weiguang Cui
https://arxiv.org/abs/2508.18778

The life and times of dark matter haloes: what will I be when I grow up?
Are the most massive objects in the Universe today the direct descendants of the most massive objects at higher redshift? We address this question by tracing the evolutionary histories of haloes in the MultiDark Planck2 simulation. By following the 100 most massive halos at $z = 0$ across cosmic time, we find that only 40\% of them were among the largest 100 halos at $z = 1$. This suggests that many of today's most massive clusters were not the most dominant structures at earlier times, while s…