Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Jha, Sohan Kumar"'
Autor:
Jha, Sohan Kumar, Rahaman, Anisur
We examine a static spherically symmetric black hole metric that originates from the vacuum solution of the traceless metric-affine bumblebee model in which spontaneous Lorentz symmetry-breaking occurs when the bumblebee fields acquire a non-vanishin
Externí odkaz:
http://arxiv.org/abs/2409.12909
Autor:
Jha, Sohan Kumar
We consider \s black hole (BH) embedded in a Dehnen-$(1,4,0)$ type dark matter halo (DDM) with two additional parameters - core radius $r_s$ and core density $\rs$ apart from mass $M$. We analyze the event horizon, photon orbits, and ISCO around DDM
Externí odkaz:
http://arxiv.org/abs/2407.18509
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
Autor:
Al-Badawi, Ahmad, Jha, Sohan Kumar
Publikováno v:
Communications in Theoretical Physics 2024
This article considers a static and spherical black hole (BH) in f(Q) gravity. f(Q) gravity is the extension of symmetric teleparallel general relativity, where both curvature and torsion are vanishing, and gravity is described by nonmetricity. In th
Externí odkaz:
http://arxiv.org/abs/2406.15526
Autor:
Jha, Sohan Kumar
This article is devoted to the comparative study of the effects of the Lorentz symmetry violation (LV) arising in Kalb-Ramond (KR) and Bumblebee (BM) field models. We study optical appearance with accretion, Quasinormal modes, ringdown waveforms, Haw
Externí odkaz:
http://arxiv.org/abs/2404.15808
Publikováno v:
Eur. Phys. J. C (2024) 84:145
A hairy black hole (HBH) emerges due to matter surrounding the Schwarzschild metric when using the Extended Gravitational Decoupling (GD) approach. The fermionic greybody factors (GFs) and quasinormal modes (QNMs) as well as Hawking spectra and spars
Externí odkaz:
http://arxiv.org/abs/2402.06739
In this manuscript, we delve into an analytic and numerical probe of shadow with different accretion models, quasinormal modes, Hawking radiation, and gravitational lensing to study observational impacts of quantum effect introduced throughh linear-q
Externí odkaz:
http://arxiv.org/abs/2401.14833
Autor:
Jha, Sohan Kumar, Jusufi, Kimet
We investigate the shadow images, the relation between Quasinormal Modes (QNMs) and the shadow radius, and the superradiance effect observed in the context of a rotating charged black hole under T-duality. Our investigation places particular emphasis
Externí odkaz:
http://arxiv.org/abs/2312.08857
Autor:
Jha, Sohan Kumar, Rahaman, Anisur
We consider a static and spherically symmetric black hole metric that emerges from the vacuum solution of the traceless metric-affine bumblebee model. Our study focuses on the possible implications of the modifications induced by the model on various
Externí odkaz:
http://arxiv.org/abs/2310.06492
Autor:
Jha, Sohan Kumar
We consider Loop Quantum Gravity(LQG) motivated $4D$ polymerized black hole and study shadow, quasinormal modes, and Hawking radiation. We obtain analytical expressions of photonsphere radius and shadow radius and study their qualitative and quantita
Externí odkaz:
http://arxiv.org/abs/2310.04759