Zobrazeno 1 - 10
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pro vyhledávání: '"Rahaman, Anisur"'
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
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
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, 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
Publikováno v:
Phys. Rev. D 107, 084052 (2023)
Adopting the manifest of low-frequency and low mass for the scalar perturbation, we perform a semi-classical analysis of the superradiance phenomenon for a rotating hairy Horndeski black hole (BH). For the spacetime under study enriched by the hairy
Externí odkaz:
http://arxiv.org/abs/2212.13051
Publikováno v:
2021 Class. Quantum Grav. 38 225008
We investigate the cosmic inflation scenario of a specific $f(R)$ model that contains more than one higher-order term in $R$. The $f(R)$ considered here has the terms $R^2$, $R^3$, and $R^4$ along with the linear term. A rigorous investigation has be
Externí odkaz:
http://arxiv.org/abs/2211.08159
Autor:
Jha, Sohan Kumar, Rahaman, Anisur
We consider non-commutating Simpson-Visser spacetime and study the superradiance phenomena and the shadow cast by the back hole associated with this modified spacetime. We extensively study the different aspects of the black hole associated with the
Externí odkaz:
http://arxiv.org/abs/2208.13176
Autor:
Jha, Sohan Kumar, Rahaman, Anisur
In this manuscript, we consider the hairy Schwarzschild black hole that evades the no-hair theorem. The hair is induced by an additional source from surroundings, such as dark matter, that has a constant energy-momentum tensor(EMT). We study the stro
Externí odkaz:
http://arxiv.org/abs/2205.06052
We study quantum gravity effects on the thermodynamic character and the radiation process of the thin accretion disks around Schwarzschild-like black hole. The quantum gravity correction is invoked through the framework of generalization of uncertain
Externí odkaz:
http://arxiv.org/abs/2205.02794