Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Patil, Mandar"'
Autor:
Patil, Mandar, Harada, Tomohiro
Publikováno v:
Phys. Rev. D 102, 024002 (2020)
We consider a process where two identical massive particles fall inwards, starting from rest at infinity towards the extremal Kerr black hole, collide outside the event horizon in its vicinity and produce two massless particles. The center of mass en
Externí odkaz:
http://arxiv.org/abs/2004.12874
Autor:
Reji, Harsha Miriam, Patil, Mandar
Publikováno v:
Phys. Rev. D 101, 064051 (2020)
In this work, we focus on the situation where a significant amount of matter could be located close to the event horizon of the central black hole and how it affects the gravitational lensing signal. We consider a simple toy model where the matter is
Externí odkaz:
http://arxiv.org/abs/1911.05311
Autor:
Królak, Andrzej, Patil, Mandar
Publikováno v:
Universe, 3(3), 59 (2017)
This article deals with the first detection of gravitational waves by the advanced Laser Interferometer Gravitational Wave Observatory (LIGO) detectors on 14 September 2015, where the signal was generated by two stellar mass black holes with masses 3
Externí odkaz:
http://arxiv.org/abs/1708.00918
Autor:
Nakao, Ken-ichi, Joshi, Pankaj S., Guo, Jun-Qi, Kocherlakota, Prashant, Tagoshi, Hideyuki, Harada, Tomohiro, Patil, Mandar, Krolak, Andrzej
The superspinar proposed by Gimon and Horava is a rapidly rotating compact entity whose exterior is described by the over-spinning Kerr geometry. The compact entity itself is expected to be governed by superstringy effects, and in astrophysical scena
Externí odkaz:
http://arxiv.org/abs/1707.07242
Autor:
Chakraborty, Chandrachur, Kocherlakota, Prashant, Patil, Mandar, Bhattacharyya, Sudip, Joshi, Pankaj S., Królak, Andrzej
Publikováno v:
Phys. Rev. D 95, 084024 (2017)
We study here the precession of the spin of a test gyroscope attached to a stationary observer in the Kerr spacetime, specifically, to distinguish naked singularity (NS) from black hole (BH). It was shown recently that for gyros attached to static ob
Externí odkaz:
http://arxiv.org/abs/1611.08808
Publikováno v:
Phys. Rev. D 95, 024026 (2017)
Binary black holes have been in limelight off late due to the detection of gravitational waves from coalescing compact binaries in the events GW150914 and GW151226. In this paper we study gravitational lensing by the binary black holes modeled as equ
Externí odkaz:
http://arxiv.org/abs/1610.04863
Publikováno v:
Phys. Rev. D 93, 104015 (2016)
The origin of the ultra-high-energy particles we receive on the Earth from the outer space such as EeV cosmic rays and PeV neutrinos remains an enigma. All mechanisms known to us currently make use of electromagnetic interaction to accelerate charged
Externí odkaz:
http://arxiv.org/abs/1510.08205
We make a critical comparison between ultra-high energy particle collisions around an extremal Kerr black hole and that around an over-spinning Kerr singularity, mainly focusing on the issue of the timescale of collisions. We show that the time requi
Externí odkaz:
http://arxiv.org/abs/1503.08331
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We investigate effect of a test magnetic field on the process of destroying near-extremal Kerr black hole with a charged test particle. It has been shown that it would be possible to throw a charged test particle into the near extremal rotating black
Externí odkaz:
http://arxiv.org/abs/1409.3018