Astrophysics · Physics & Astronomy
High Energy Astrophysical Phenomena
The newest papers in High Energy Astrophysical Phenomena that ReadSearch has read, newest first. Each links to its own page, with its authors, date, where it was published and the original.
189 papers, from 21 September 2026 to 5 November 2026: 189 arXiv preprints.
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Newest papers, page 2
RAKI: High-Order Alternative Finite Differences for General Relativistic Magnetohydrodynamics
Binary neutron star (BNS) and black hole--neutron star mergers are among the most important multimessenger sources.What kinds of strong star--black-hole encounters in AGN disks occur, and how often?
Disks surrounding active galactic nuclei contain many stars and black holes, which will inevitably encounter one another.The unresolved high-mass frontier of the black hole Fundamental Plane
Accreting black holes follow a Fundamental Plane (FP) linking radio and X-ray luminosities to black hole mass, but whether this relation changes in the ultramassive regime, above…The Conditional CMB Visibility of High-Redshift X-Ray Cavities in Galaxy clusters
At high redshift, the cosmic microwave background (CMB) both cools relativistic leptons and provides seed photons for inverse-Compton (IC) X-ray emission.Bridging Scales: Multi-Zone GRMHD-Informed Anisotropic AGN Feedback in Galaxies
We present a galaxy-scale black hole (BH) accretion and feedback model incorporating results from multi-zone general relativistic magnetohydrodynamic (GRMHD) simulations spanning the event horizon…Galaxy cluster thermodynamics at z=1.7: Resolved tSZ and X-ray analysis of CL J0459.6-4946
Measurements of the entropy and temperature distribution of the intracluster medium (ICM) of local clusters have proven pivotal for the study of cluster astrophysics.Numerical Simulations of the interaction between winds from tidal disruption event and supermassive black hole circumnuclear medium
The interaction between winds from tidal disruption event (TDE) and the circumnuclear medium (CNM) around supermassive black holes is believed to contribute to the radio emission of non-jetted TDEs.Migration Traps as Variability Attractors. II. Nonmonotonic X-Ray Timing Signatures of Embedded Stellar-Mass Black Holes in AGN Disks
Stellar-mass black holes (sBHs) embedded in active galactic nucleus (AGN) disks may affect X-ray variability through magnetic reconnection.Black Hole Spin Evolution in Magnetized Accretion Flows
Black hole (BH) spin grows as accretion supplies angular momentum and decreases as magnetically driven jets remove it, driving the BH toward an equilibrium spin, $a_{\rm \star; eq}$.Infrared spectroscopy of the longest-period Galactic Mira variables from Palomar Gattini-IR: Identification of a candidate thermally pulsing Super-Asymptotic Giant Branch star
The population of extremely long-period Mira variables in the Milky Way remains poorly characterized.The coupled evolution of nuclear star clusters and intermediate-mass black holes in a dwarf-galaxy merger
Nuclear star clusters (NSCs) and intermediate-mass black holes (IMBHs) are expected to coexist in low-mass galaxies and might together facilitate the coalescence and growth of IMBHs.Quantum Annealing for Gamma-ray Source Detection and Localization with AGILE Data
The detection and localization of gamma-ray sources via maximum-likelihood analysis is a complex parameter optimization problem.X-ray Emission Study of TeV Blazars
In this work, we present a systematic X-ray study of 85 TeV-detected blazars based on archival \emph{Swift}-XRT and \emph{NuSTAR} observations available up to May 2024.Probing the inner disk edge of rotating neutron stars with dipole excitations in finite nuclei
The nuclear equation of state shapes both the structure of rapidly rotating neutron stars and the orbital motion in their surrounding spacetime.Weighing dark matter particles with gravitational waves
It is commonly assumed that the mass of dark matter particles cannot be determined from their gravitational effects when dark matter behaves as collisionless matter.Seeing Unseen Gravitational Wave Inspirals at the Galactic Center
The Galactic Center is expected to host a population of extremely large mass-ratio inspirals (X-MRIs) migrating toward the supermassive black hole.Ejected and Rejected: Strong Scatterings in Dense Star Clusters
Understanding the evolution of collisional stellar systems is key to predicting both the bulk evolution of dense star clusters and also the rates of tidal disruption events, extreme mass ratio…Validating an X-ray-based method for identifying Fermi blazars
Blazars are the main population of active galactic nuclei (AGNs) detected in gamma rays by Fermi.Cosmic rays in galaxy halos I: the circumgalactic transport rate and a dynamically significant cosmic-ray reservoir
Fermi-LAT observations imply that most of the cosmic rays (CRs) produced in normal star-forming galaxies escape from the discs where they are accelerated into the circumgalactic medium (CGM), but…Tidal contributions to neutron star orbital precession around Sgr $A^*$
We investigate tidal contributions to the orbital precession of neutron stars around the supermassive black hole Sgr A*, using stellar configurations described by the Tolman - Oppenheimer - Volkoff…