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

Subjects: “…black hole entropy…”
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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. …”
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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.…”
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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. …”
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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. …”
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Cryptographic Censorship by Netta Engelhardt, Åsmund Folkestad, Adam Levine, Evita Verheijden, Lisa Yang

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Classical eikonal from Magnus expansion by Joon-Hwi Kim, Jung-Wook Kim, Sungsoo Kim, Sangmin Lee

Subjects: “…Black Holes…”
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Pseudospectra of complex momentum modes by David García-Fariña, Karl Landsteiner, Pau G. Romeu, Pablo Saura-Bastida

Subjects: “…Black Holes…”
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Bulge Oscillation Driven by Outflows of Active Galactic Nuclei. I. Fast Outflow Case by Yue-Chang Peng, Jian-Min Wang, Yu Zhao, Luis C. Ho

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The holographic landscape of symmetric product orbifolds by Alexandre Belin, Alejandra Castro, Christoph A. Keller, Beatrix Mühlmann

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Approximate symmetries and gravity by Sylvain Fichet, Prashant Saraswat

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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. …”
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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

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Central AdS Generalized Ay{\'o}n-Beato-Garc{\'\i}a Black Holes and Joule-Thomson Expansion by Elham Ghasemi, Hossein Ghaffarnejad

Subjects: “…nonsingular black holes…”
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Optical features and thermal properties of charged AdS Euler–Heisenberg black hole surrounded by perfect fluid dark matter by M. R. Shahzad, G. Abbas, Tao Zhu, R. H. Ali, Asifa Ashraf, Badr S. Al-Kahtani

“…Finally, we extend our study to the optical features of the charged Euler–Heisenberg black hole surrounded by perfect fluid dark matter, such as the black hole shadow and energy emission rate and observe the impact of the coupling parameter.…”
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Unveiling the Emission Mechanisms of Blazar PKS 1510−089. II. Jet−BLR Connection and Black Hole Mass Estimation by Alfredo Amador-Portes, Vahram Chavushyan, Víctor M. Patiño-Álvarez, José Ramón-Valdés

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Semianalytical Fokker–Planck Models for Nuclear Star Clusters by Karamveer Kaur, Barak Rom, Re’em Sari

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Perfect Fluid Dark Matter Influence on Thermodynamics and Phase Transition for a Reissner-Nordstrom-Anti-de Sitter Black Hole by Zhaoyi Xu, Xian Hou, Jiancheng Wang, Yi Liao

“…Based on Reissner-Nordstrom-anti-de Sitter(RN-AdS) black hole surrounded by perfect fluid dark matter, we study the thermodynamics and phase transition by extending the phase space defined by the charge square Q2 and the conjugate quantity ψ, where ψ is a function of horizon radius. …”
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