Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Singha, Chiranjeeb"'
The presence of Dark matter (DM) within a neutron star (NS) can substantially influence the macroscopic properties. It is commonly assumed that the pressure inside an NS is isotropic, but in reality, pressure is locally anisotropic. This study explor
Externí odkaz:
http://arxiv.org/abs/2408.14020
In this work, we study the tidal response of a rotating BTZ black hole to the scalar tidal perturbation. We show that the real component of the tidal response function isn't zero, indicating that a rotating BTZ black hole possesses non-zero tidal Lov
Externí odkaz:
http://arxiv.org/abs/2407.09470
We report a family of self-similar exact solutions in General Relativity. The solutions are found in a Painleve-Gullstrand coordinate system but can also be transformed smoothly into a diagonal form. The solutions represent a gravitational collapse l
Externí odkaz:
http://arxiv.org/abs/2404.18431
In this work, we investigate the tunneling phenomenon of a charged Dirac particle emerging from a thermal horizon of a hot NUT-Kerr-Newman-Kasuya-Anti-de Sitter (HNKNK-AdS) black hole. Considering the tunneling formalism, we report the Hawking temper
Externí odkaz:
http://arxiv.org/abs/2403.13585
There are several well-established methods for computing thermodynamics in single-horizon spacetimes. However, understanding thermodynamics becomes particularly important when dealing with spacetimes with multiple horizons. Multiple horizons raise qu
Externí odkaz:
http://arxiv.org/abs/2309.08645
Autor:
Singha, Chiranjeeb, Biswas, Shauvik
Publikováno v:
Phys.Rev.D 109 (2024) 2, 024043
In this article, we will first-time model galactic black holes in pure Lovelock gravity. Even though working with higher spacetime dimensions, we assume (implicitly) the Hernquist-type mass profile for the galaxy in such a way that the horizon struct
Externí odkaz:
http://arxiv.org/abs/2309.01760
In this work, we present the environmental effects on wormholes residing in a galaxy. By this, we propose that these wormholes are mimickers of supermassive black holes residing at the galactic centers. In particular, we consider two wormhole spaceti
Externí odkaz:
http://arxiv.org/abs/2307.04836
Autor:
Biswas, Shauvik, Singha, Chiranjeeb
We find static fluid solutions of Einstein and pure Lovelock equations with $p_r=0$, $p_t=k\rho$, which could be possible models for the interior of a Buchdahl-like star. Buchdahl star is a limiting stellar configuration without a horizon whose forma
Externí odkaz:
http://arxiv.org/abs/2305.02768
Publikováno v:
Entropy 2022, 24(11), 1570
We examine the extreme situation of radiation from an electron that is asymptotically accelerated to the speed of light, resulting in finite emission energy. The analytic solution explicitly demonstrates the difference between radiation power loss an
Externí odkaz:
http://arxiv.org/abs/2211.00264
Autor:
Singha, Chiranjeeb, Dadhich, Naresh
The strong cosmic censorship conjecture states (SCCC) that one cannot extend spacetime beyond the Cauchy horizon with a square-integrable connection. This conjecture was postulated to save the deterministic nature of the most successful theory of gra
Externí odkaz:
http://arxiv.org/abs/2209.10153