27 papers
Spinning particle dynamics, epicyclic frequencies, and transient QPO signatures in Schwarzschild spacetime
Uktamjon Uktamov, Ali Ãvgün, Reggie C. Pantig +1
The paper analyzes how the spin of a test particle affects its motion, orbital stability, and epicyclic frequencies around a non‑rotating (Schwarzschild) black hole, and explores i…
Chaotic behaviors of particles around the black hole with an anisotropic matter immersed in a magnetic field
Khusan Alibekov, Hocheol Lee, Yovqochev Pahlavon +4
We present an exact solution to the Einstein-Maxwell equations that describes a static black hole coexisting with anisotropic matter immersed in an external magnetic field, obtaine…
Low-mass X-ray binaries as a probe of Kerr-MOG black hole spacetime
Bakhodirkhon Saidov, Bakhtiyor Narzilloev, Ibrar Hussain +1
We investigate the astrophysical implications of rotating black holes in modified gravity by studying the Kerr-MOG spacetime and applying it to several stellar-mass black hole cand…
Cosmological Constraints on Minimal Cubic Galileon Models in Teleparallel Gravity
Akbar Davlataliev, Abdurakhmon Nosirov, Odil Yunusov +2
Cubic Galileon cosmological models provide a well-motivated framework for investigating late-time cosmic acceleration beyond the standard CDM paradigm. In this work, we study o…
Phase transition for a black hole with matter fields and the relation with the Lyapunov exponent
Pakhlavon Yovkochev, Bobomurat J. Ahmedov, Bum-Hoon Lee +2
We construct black hole geometries coexisting with anisotropic matter in (anti)-de Sitter spacetime. We specifically focus on the black hole phase transitions that occur in anti-de…
Repetitive Penrose Process in Kerr-Taub-NUT black hole spacetime
Mirzabek Alloqulov, Bobomurat Ahmedov, Chengxun Yuan
In this article, we study the repetitive Penrose process for the Kerr-Taub-NUT black hole (BH). First of all, we briefly review the spacetime of the Kerr-Taub-NUT BH, including hor…