arXiv digest · archive

25 September 2026

The preprints announced on this day that reached the digest, kept as they were published.

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Preprints27

Convolutional non-parametric Gamma-Ray Signal and Background Separation

Scarlet Betterman, Emmanuel Moulin, Martin White · 25 Sep 2026

astro-ph.HE

Sub-Horizon and Quasi-Static Approximations in Interacting Dark Sector Models Involving Scalar Field Dark Energy

Priyanka Saha, Sharvari Nadkarni-Ghosh, Kaushik bhattacharya · 25 Sep 2026

gr-qcastro-ph.CO

$k-$deformed Schwarzschild AdS black strings

B. Eslam Panah · 25 Sep 2026

gr-qchep-th

Gravitational wave radiation from periodic orbits around a black hole in Einstein-Maxwell-scalar theory

Mirzabek Alloqulov, Xojibonu Abdurashidova, Sanjar Shaymatov et al. · 25 Sep 2026

gr-qc

Energy extraction from a Kerr-Bardeen-Letelier black hole by Comisso-Asenjo Mechanism

Bijendra Kumar Vishvakarma, Dharm Veer Singh, Sanjay Siwach · 25 Sep 2026

gr-qc

Observational constraints on scalar-vector-tensor dark energy with phantom-divide crossing

Nandan Roy, Shinji Tsujikawa, Ying-li Zhang et al. · 25 Sep 2026

astro-ph.COgr-qchep-phhep-th

Architecture Acceleration of Machine Learning Gravitational Waveform Surrogate Models

Adriano Frattale Mascioli, Lorenzo Piccari, Saulo Albuquerque et al. · 25 Sep 2026

gr-qcastro-ph.IM

Thermodynamic geometry as the missing link: toward a unified framework for black hole first-order phase transitions

Shi-Hao Zhang, Jing-Fei Zhang, Xin Zhang · 25 Sep 2026

gr-qchep-phhep-th

Natural Saturation Of The Sterile Neutrino Dark Matter Resonant Production By a High Lepton Flavor Asymmetry In Primordial Plasma

Dmitry Gorbunov, Dmitry Kalashnikov · 25 Sep 2026

hep-phastro-ph.CO

Circular orbits and particle collisions in the space-time of boson stars and their frozen states

Maria Chivers, Betti Hartmann, Katherine Horton et al. · 25 Sep 2026

gr-qchep-th

Dilatonic Reissner--Nordström black holes in a Bertotti--Robinson magnetic background

Kenneth Hong · 25 Sep 2026

gr-qc

Kruglov-entropy cosmology from apparent-horizon thermodynamics: background dynamics and observational constraints

Candrasyah Muhammad, Burin Gumjudpai, Nandan Roy et al. · 25 Sep 2026

astro-ph.COgr-qchep-th

4FHL: The Fourth Catalog of Hard Fermi-LAT Sources

The Fermi-LAT Collaboration · 25 Sep 2026

astro-ph.HE

High-frequency gravitational waves from microscopic particle-graviton associated production in bubble collisions

Peilin Chen, Dayun Qiu, Zihong Cheng et al. · 25 Sep 2026

hep-ph

Cosmic Heterogeneity Shapes the Evolution of Dark Energy and Time

Jacky David Yang, Hans-Otto Carmesin · 25 Sep 2026

astro-ph.CO

Chaos bound for spinning particles in a hairy black hole with two photon spheres

Chuanhong Gao · 25 Sep 2026

gr-qchep-th

Cosmological Dynamics and Observational Constraints of a Logarithmic Herglotz $f(R,T)$ Gravity

Vishal M C, Sankarsan Tarai · 25 Sep 2026

gr-qc

Neutrino Direct Simulation Monte Carlo: Accurate modeling of out-of-equilibrium decaying cosmological relics

Kensuke Akita, Miguel Escudero, Oleksii Ihnatenko et al. · 25 Sep 2026

hep-phastro-ph.CO

$\textit{Nāpōwawā`enakaulua}$: a close quasar pair at cosmic dawn in the Aether survey

Silvia Onorato, Emanuele Paolo Farina, Roberto Decarli et al. · 25 Sep 2026

astro-ph.GAastro-ph.CO

Discovery of minute-scale polarization angle rotation in a supermassive black hole jet

Aristeidis Polychronakis, Ioannis Liodakis, Dmitry Blinov et al. · 25 Sep 2026

astro-ph.HE

Milky Way White Dwarfs as Inelastic Dark Matter Detectors

Javier F. Acevedo · 25 Sep 2026

hep-phastro-ph.HE

Observational Evidence of Velocity Anisotropy Assembly Bias in Galaxy Clusters

Facundo Rodriguez, Andrea Biviano, Ravi K. Sheth et al. · 25 Sep 2026

astro-ph.CO

General Relativity with Finite Boundaries

Chawakorn Maneerat · 25 Sep 2026

hep-thgr-qc

SLICE: Unveiling the Multi-Component Merging Core of SPT-CLJ1150-2805 Through Strong-Lensing Mass Modelling

James R. Betts, Benjamin Beauchesne, Mathilde Jauzac et al. · 25 Sep 2026

astro-ph.COastro-ph.GA

Identifiability Limits of Gravitational Wave Phase Deviations: Multiclass Classification with a Multihead Neural Network

Lavinia Heisenberg, Shayan Hemmatyar · 25 Sep 2026

gr-qccs.LGphysics.data-an

A Delayed Rejection Reversible Jump Markov Chain Monte Carlo Method for Multi-Resolution Maps of the Stochastic Gravitational Wave Background with Pulsar Timing Array Data

Taha T. Moursy, Nihan S. Pol · 25 Sep 2026

astro-ph.IMastro-ph.HE

Galaxy and Halo Assembly Bias in Alternative Dark Matter Models

Yikun Wang, Idit Zehavi, Sergio Contreras et al. · 25 Sep 2026

astro-ph.CO

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