Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Shaymatov, Sanjar"'
Electric Penrose process and the accretion disk around a 4D charged Einstein-Gauss-Bonnet black hole
Autor:
Alloqulov, Mirzabek, Shaymatov, Sanjar
In this paper, we aim to examine the electric Penrose process (PP) around a charged black hole in 4D Einstein-Gauss-Bonnet (EGB) gravity and bring out the effect of the Gauss-Bonnet (GB) coupling parameter $\alpha$ and black hole charge on the effici
Externí odkaz:
http://arxiv.org/abs/2408.00035
In this study, we investigate the parameterized Konoplya-Rezzolla-Zhidenko (KRZ) black hole (BH) spacetime in the presence of an external asymptotically uniform magnetic field. We first examine the innermost stable circular orbit (ISCO) radii for bot
Externí odkaz:
http://arxiv.org/abs/2407.19800
We investigate shadows, deflection angle, quasinormal modes (QNMs), and sparsity of Hawking radiation of the Schwarzschild string cloud black hole's solution after applying quantum corrections required by the Generalised Uncertainty Principle (GUP).
Externí odkaz:
http://arxiv.org/abs/2406.17501
Buchdahl star is the most compact object without an event horizon and is an excellent candidate for a black hole mimicker. Unlike black holes, rotating Buchdahl star can be over-extremal with respect to the black hole, sustaining a larger spin. We sh
Externí odkaz:
http://arxiv.org/abs/2404.06870
Autor:
Shaymatov, Sanjar
In this paper, we consider a well-established magnetic Penrose process (MPP) and bring out its impact on the efficiency of energy extraction from higher dimensional (i.e., $D>4$) black holes. We derive the field equations of motion and determine the
Externí odkaz:
http://arxiv.org/abs/2402.02471
We investigate the impact of the modified gravity (MOG) field and the quintessence scalar field on horizon evolution, black hole (BH) shadow and the weak gravitational lensing around a static spherically symmetric BH. We first begin to write the BH m
Externí odkaz:
http://arxiv.org/abs/2401.12723
In this paper, we investigate the optical properties of a charged black hole in Einstein-Maxwell-scalar (EMS) theory. We evaluate the shadow cast by the black hole and obtain analytical solutions for both the radius of the photon sphere and the shado
Externí odkaz:
http://arxiv.org/abs/2401.04584
Publikováno v:
Chin. Phys. C 48, 025101 (2024)
In this study, we explore the properties of a non-rotating black hole in the Einstein-Maxwell-scalar (EMS) theory and investigate the luminosity of the accretion disk surrounding it. We determine all the orbital parameters of particles in the accreti
Externí odkaz:
http://arxiv.org/abs/2401.03184
Autor:
Shaymatov, Sanjar, Ahmedov, Bobomurat, De Laurentis, Mariafelicia, Jamil, Mubasher, Wu, Qiang, Wang, Anzhong, Azreg-Aïnou, Mustapha
In this paper, we find the higher order expansion parameters $\alpha$ and $\lambda$ of spherically symmetric parametrized Rezzolla--Zhidenko (PRZ) spacetime by using its functions of the radial coordinate. We subject the parameters of this spacetime
Externí odkaz:
http://arxiv.org/abs/2307.10804
In this paper, we study the magnetic reconnection process of energy extraction from a rapidly rotating Kerr-Newman-modified-gravity (MOG) black hole by investigating the combined effect of black hole charge and the MOG parameter. We explore the energ
Externí odkaz:
http://arxiv.org/abs/2307.03012