Gravitational odd-parity perturbation of a Horndeski hairy black hole: quasinormal mode and parameter constraint by Zhen-Hao Yang, Yun-He Lei, Xiao-Mei Kuang, Bin Wang

“…Abstract During the binary black hole coalescence, gravitational waves emitted at the ringdown stage can be well described by black hole perturbation theory, where the quasinormal modes (QNMs) become the important ingredient in modeling the pattern waveform. …”
Get full text

Exploring thematic activity changes in black holes and volcanoes of urban population mobility under daily rhythms by Jing Cai, Rui Li, Shunli Wang, Huayi Wu

“…Detecting and quantifying thematic activity changes in the short-term aggregated inflow and outflow of urban population mobility (referred to as black holes and volcanoes, respectively) contribute to the economy and public services. …”
Get full text

Hawking Radiation-Quasi-Normal Modes Correspondence and Effective States for Nonextremal Reissner-Nordström Black Holes by C. Corda, S. H. Hendi, R. Katebi, N. O. Schmidt

“…It is known that the nonstrictly thermal character of the Hawking radiation spectrum harmonizes Hawking radiation with black hole (BH) quasi-normal modes (QNM). This paramount issue has been recently analyzed in the framework of both Schwarzschild BHs (SBH) and Kerr BHs (KBH). …”
Get full text

About thermodynamics of Schwarzschild black holes in a three-dimensional quantum vacuum with generalized uncertainty relations by Fiscaletti Davide

Subjects: Get full text

Multi-messenger probes of asteroid mass primordial black holes: Superradiance spectroscopy, Hawking radiation, and microlensing by James B. Dent, Bhaskar Dutta, Tao Xu

“…Superradiance provides a unique opportunity for investigating dark sectors as well as primordial black holes, which themselves are candidates for dark matter over a wide mass range. …”
Get full text

Strongly Magnetized Accretion with Low Angular Momentum Produces a Weak Jet by Alisa Galishnikova, Alexander Philippov, Eliot Quataert, Koushik Chatterjee, Matthew Liska

Subjects: “…Astrophysical black holes…”
Get full text

The Kramers escape rate of phase transitions for the 6-dimensional Gauss-Bonnet AdS black hole with triple phases by Chen Ma, Pan-Pan Zhang, Bin Wu, Zhen-Ming Xu

“…One is a dynamic equilibrium of the transition from the medium black hole state to the large black hole state and the transition from the small black hole state to the medium black hole state. …”
Get full text

Slaying axion-like particles via gravitational waves and primordial black holes from supercooled phase transition by Angela Conaci, Luigi Delle Rose, P. S. Bhupal Dev, Anish Ghoshal

“…Abstract We study the formation of primordial black holes (PBHs) from density fluctuations due to supercooled phase transitions (PTs) triggered in an axion-like particle (ALP) model. …”
Get full text

Uncovering Deterministic Behavior of Black Hole IGR J17091–3624: A Twin of GRS 1915+105 by Anindya Guria, Banibrata Mukhopadhyay

Subjects: Get full text

Maximally Localized States and Quantum Corrections of Black Hole Thermodynamics in the Framework of a New Generalized Uncertainty Principle by Yan-Gang Miao, Ying-Jie Zhao, Shao-Jun Zhang

“…On the other hand, in the framework of this new GUP we calculate quantum corrections to the thermodynamic quantities of the Schwardzschild black hole, such as the Hawking temperature, the entropy, and the heat capacity, and give a remnant mass of the black hole at the end of the evaporation process. …”
Get full text

Star shearing season: transient signals in wave-like dark matter experiments from black hole formation by Arturo de Giorgi, Joerg Jaeckel

“…When these objects are turned into black holes due to a supernova or a binary merger this “hair” could be “shorn” off. …”
Get full text

Periodic orbits and gravitational wave radiation in short hair black hole spacetimes for an extreme mass ratio system by Lai Zhao, Meirong Tang, Zhaoyi Xu

“…Abstract For a short hair black hole(BH) that bypasses the “no-short-hair” theorem, its hair parameters have a significant impact near the event horizon and may thus carry the internal information of the BH. …”
Get full text

Hubble Space Telescope Observations within the Sphere of Influence of the Powerful Supermassive Black Hole in PKS 0745-191 by Julie Hlavacek-Larrondo, Hyunseop Choi, Minghao Guo, Annabelle Richard-Laferrière, Carter Rhea, Marine Prunier, Helen Russell, Andy Fabian, Jonelle L. Walsh, Marie-Joëlle Gingras, Brian McNamara, Steve Allen, André-Nicolas Chené, Alastair Edge, Marie-Lou Gendron-Marsolais, Michael McDonald, Priyamvada Natarajan, Jeremy Sanders, James F. Steiner, Benjamin Vigneron, Anja von der Linden

Subjects: “…Supermassive black holes…”
Get full text

Black Holes Have More States than Those Defined by the Bekenstein–Hawking Entropy: A Simple Argument by Carlo Rovelli

Subjects: “…black hole entropy…”
Get full text

The Relation between the Quasi-Localized Energy-Momentum Complexes and the Thermodynamic Potential for the Schwarzschild-de Sitter Black Hole by I-Ching Yang

“…Here M is the patch between cosmological event horizon and black hole event horizon of the SdS black hole solution. …”
Get full text

Heun-Type Solutions of the Klein-Gordon and Dirac Equations in the Garfinkle-Horowitz-Strominger Dilaton Black Hole Background by Marina-Aura Dariescu, Ciprian Dariescu, Cristian Stelea

“…We study the Klein-Gordon and the Dirac equations in the background of the Garfinkle-Horowitz-Strominger black hole in the Einstein frame. Using a SO(3,1)×U(1)-gauge covariant approach, as an alternative to the Newman-Penrose formalism for the Dirac equation, it turns out that these solutions can be expressed in terms of Heun confluent functions and we discuss some of their properties.…”
Get full text

Distinguishing black holes with and without spontaneous scalarization in Einstein-scalar-Gauss–Bonnet theories via optical features by Xi-Jing Wang, Yuan Meng, Xiao-Mei Kuang, Kai Liao

“…Our findings reveal that the scalarized black holes consistently exhibit smaller shadow sizes and reduced brightness compared to Schwarzschild black holes. …”
Get full text

P-v Criticality of a Specific Black Hole in f(R) Gravity Coupled with Yang-Mills Field by Ali Övgün

“…We study the P-v criticality of a specific charged AdS type black hole (SBH) in f(R) gravity coupled with Yang-Mills field. …”
Get full text

Weak gravity conjecture validation with photon spheres of quantum corrected Reissner–Nordstrom–AdS black holes in Kiselev spacetime by Mohammad Reza Alipour, Mohammad Ali S. Afshar, Saeed Noori Gashti, Jafar Sadeghi

“…Abstract In this study, we investigate the Weak Gravity Conjecture (WGC) in the context of quantum-corrected Reissner–Nordstrom–AdS (RN-AdS) black holes within Kiselev spacetime. Our focus is on photon spheres, which serve as markers for stable and unstable photon spheres. …”
Get full text

A 22 Billion M⊙ Black Hole in Holmberg 15A with Keck KCWI Spectroscopy and Triaxial Orbit Modeling by Emily R. Liepold, Chung-Pei Ma, Jonelle L. Walsh

Subjects: Get full text