Gravitational waveforms from periodic orbits around Gauss-Bonnet black holesExtreme mass-ratio inspirals (EMRIs) constitute one of the most promising probes of strong field gravity for future space borne gravitational-wave observatories. As a representative higher-curvature…Yi-Han Huang, Sen Guo, Yu Liang et al.·Jun 15, 2026SaveLearn
Interaction of fluids described through relative motion and application to Bianchi type-I spacetimesWe derive the stress-energy tensor for a pair of fluids with a novel form of interaction that depends on the relative velocity of volume elements of the two fluids. The interaction is described…Peter Mészáros, Daniel Račko·Jun 15, 2026SaveLearn
Quasinormal Modes and Hawking Radiation of Black Holes with Primary Scalar HairRecently, a new family of asymptotically flat black-hole solutions endowed with primary scalar hair has been discovered in beyond-Horndeski gravity. We study in detail the quasinormal modes spectra,…Roman Konoplya, Oleksandr Stashko, Zdeněk Stuchlík·Jun 15, 2026SaveLearn
Quasinormal modes and tidal responses of black holes in generic anisotropic matter environmentsWe develop a perturbative framework for a black hole embedded in a generic, possibly anisotropic, matter environment under spherical symmetry. Our approach extends previous analyses restricted to…Yu-Qian Zhao, Paolo Pani·Jun 15, 2026SaveLearn
The Physics presented in the Film Interstellar and its Astrophysical ApplicationsThe film Interstellar is grounded in real physics calculations. A key requirement in the film is that of a planet orbiting a supermassive black hole such that one hour on the planet corresponds to…Harleen Dhingra, Sanjeev Dhurandhar, Sanjit Mitra·Jun 15, 2026SaveLearn
Relativistic Elastic Response to Gravitational Waves: Explicit Solutions for a Rectangular PlateWe study the interaction between gravitational waves and elastic bodies within the framework of relativistic elasticity. Starting from the Lagrangian formulation of relativistic elasticity, we derive…José Natário, Filipe Nazaré·Jun 15, 2026SaveLearn
Canonical quantization of massive vector field in Schwarzschild black hole backgroundWe perform a first-principles canonical quantization of a massive vector field, often referred to as the Proca field, in a Schwarzschild spacetime background. While scalar, fermionic, and…Chandra Prakash, Rajesh Karmakar·Jun 15, 2026SaveLearn
Holographic inflation and slow-roll inflation within Rényi entropic framework in the light of ACT DR6Based on the Rényi entropy, Rényi holographic dark energy has been proposed to explain the current accelerated expansion of the universe. In this paper, we analyze holographic inflation and slow-roll…Qihong Huang, He Huang, Hao Chen et al.·Jun 15, 2026SaveLearn
Dynamic Black-hole Emission Tomography with Physics-informed Neural FieldsWith the success of static black-hole imaging, the next frontier is the dynamic and 3D imaging of black holes. Recovering the dynamic 3D gas near a black hole would reveal previously-unseen parts of…Berthy T. Feng, Andrew A. Chael, David Bromley et al.·Jun 15, 2026SaveLearn
Dynamical hair growth in black hole binaries in Einstein-scalar-Gauss-Bonnet gravityWithin the framework of scalar-tensor theories of gravity, certain models can evade classical black hole no-hair theorems. A well-known example is Einstein-scalar-Gauss-Bonnet gravity, where black…Lodovico Capuano, Llibert Aresté Saló, Daniela D. Doneva et al.·Jun 15, 2026SaveLearn
Quantum Cosmology in Accelerating Spacetimes IIThis paper is a sequel in which we further analyze the recently derived quantum gravity equations which apply in accelerating cosmological spacetimes and whose solutions should be equivalent to all…S. P. Miao, N. C. Tsamis, R. P. Woodard·Jun 15, 2026SaveLearn
Constants of motion in gravitational self-force theorySynergies between self-force theory and other approaches to the gravitational two-body problem have traditionally relied on calculations of gauge-invariant observables as functions of orbital…David Trestini, Zachary Nasipak, Adam Pound·Jun 15, 2026SaveLearn
Effective Regge-Wheeler equations of a hybrid loop quantum black holeA set of effective equations for the gauge-invariant gravitational perturbations in the interior of a spherically symmetric, non-rotating black hole is derived within the framework of hybrid loop…Beatriz Elizaga Navascués, Alvaro Torres-Caballeros·Jun 15, 2026SaveLearn
Vacuum-purified Hawking radiation from evaporating black holes: Lessons from moving mirrorsThis article investigates the possibility that Hawking-like quanta emitted by a moving mirror can be purified by late-time vacuum fluctuations, as proposed in Hotta, Schützhold and Unruh [Phys. Rev.…Ivan Agullo, Paula Calizaya Cabrera, Beatriz Elizaga Navascués·Jun 15, 2026SaveLearn
Universal geometric framework for black hole phase transitions: from multivaluedness to classificationRecent studies have revealed synchronized multivalued behavior in thermodynamic, dynamical, and geometric quantities during the black hole first-order phase transition, which enables a diagnosis from…Shi-Hao Zhang, Zi-Yuan Li, Jing-Fei Zhang et al.·Jun 15, 2026SaveLearn
Black-hole ringdown with templates capturing spin precession: A reanalysis of GW190521The ringdown stage of a binary black-hole merger provides a clean probe of strong-field gravity, as it can be modeled with minimal assumptions. The quasi-normal-mode frequencies encode the mass and…Chiara Anselmo, Costantino Pacilio, Davide Gerosa·Jun 15, 2026SaveLearn
A Universal Smarr Formula via Coupling ConstantsIn gravitational theories containing matter fields and higher-derivative corrections, the standard Smarr formula often fails unless all dimensionful couplings are incorporated consistently.…Kamal Hajian, Bayram Tekin, Onur Ucanok·Jun 15, 2026SaveLearn
Constraints on Shadow Radius and Instabilities Arising from Various Perturbations in Spherically Symmetric Black Holes in Einstein-power-Yang-Mills-Gauss-Bonnet GravityThe space-time geometry under investigation is chosen to be a high-dimensional, static, spherically symmetric solution in an asymptotically flat background within the…Zening Yan·Jun 15, 2026SaveLearn
Dark matter distributions around Schwarzschild-like black holes in bumblebee and Kalb-Ramond modelsA central black hole can attract a dark matter cluster and generate a spike in the density profile, as demonstrated by detailed analysis of Schwarzschild and Kerr black holes in the past. Do…Minghong Yu, Towe Wang·Jun 15, 2026SaveLearn
A Pseudo Plane-wave Gravitational Calibrator for Gravitational Wave ObservatoriesThe precisions of existing gravitational calibrators for gravitational wave observatories are limited by their dependence on the relative position between the calibrators and the observatory's…M. P. Ross, J. H. Gundlach, E. G. Adelberger et al.·Jun 15, 2026SaveLearn
Gravitational effect of plasma particles on the shadow of Schwarzschild black holesConsidering a Schwarzschild black hole surrounded by a fully ionized hydrogen plasma, we study the effect of the gravitational field of the plasma particles on the shadow. We take a formalism in…Qiang Li, Yanni Zhu, Towe Wang·Jun 15, 2026SaveLearn
From information bounds to infrared gravity: implications of Sharma-Mittal entropyThe Sharma--Mittal (SM) entropy provides a two-parameter generalization encompassing both the Rényi and Tsallis statistical frameworks. In this work, we investigate its thermodynamic and…Abdelhakim Benkrane, Giuseppe Gaetano Luciano, Ahmad Sheykhi·Jun 14, 2026SaveLearn
Geodesics Structure and Light Deflection of Regular Phantom Black HoleThe geodesic structure of Regular Phantom Black Holes (RPBH) space--time is analyzed and discussed in three asymptotically cases: Flat, de Sitter (dS), and Anti--de Sitter…B. Malekolkalami, M. Haditale·Jun 14, 2026SaveLearn
Quasinormal modes and excitation factors of a regular black hole with zero-point lengthWe study the ringdown of the regular Jusufi-Singleton black hole, whose nonsingular core is controlled by a zero-point length arising from a non-local, T-duality-inspired gravitational model. Scalar,…Milena Skvortsova·Jun 14, 2026SaveLearn
Testing the Nature of Rotating Black Hole Shadows Surrounded by a Thin Accretion Disk within Rastall GravityWe investigate the observational appearance of a rotating black hole (BH) in Rastall gravity by analyzing its shadow and accretion signatures under different illumination environments. The spacetime…Abdul Malik Sultan, Muhammad Israr Aslam, Manahil Ali et al.·Jun 14, 2026SaveLearn