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Related papers: Absorption Process and Weak Cosmic Censorship Conj…

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The Weak Cosmic Censorship Conjecture, since its proposal, has always been a controversial hypothesis, but its significance in astrophysics is undeniable. For a regular black hole, its center does not contain a singularity, and the…

General Relativity and Quantum Cosmology · Physics 2024-04-02 Lai Zhao , Meirong Tang , Zhaoyi Xu

We have developed a methodology to test the age-old cosmic censorship hypothesis in Kerr geometry. We have shown that the Kerr black hole can be overspun by particles captured from the innermost stable circular orbit. However, it appears…

General Relativity and Quantum Cosmology · Physics 2023-03-21 Dishari Malakar , K Rajesh Nayak

The validity of the cosmic censorship conjecture for the Kerr-Sen black hole, which is a solution to the low-energy effective field theory for four-dimensional heterotic string theory, is investigated using charged particle absorption. When…

General Relativity and Quantum Cosmology · Physics 2017-07-03 Bogeun Gwak

We investigate the weak cosmic censorship conjecture by analyzing the dynamics of spinning timelike particles dropped along the rotational axis of an extremal Kerr (anti)de Sitter black hole. This idea was first considered in a seminal…

General Relativity and Quantum Cosmology · Physics 2025-07-28 Antonia M. Frassino , Jorge V. Rocha , Andrea P. Sanna

By neglecting the effects of self-force and radiation, we investigate the possibility of destroying the Kerr-MOG black hole through the point particle absorption process. Using the instability of event horizon and equation of particle…

General Relativity and Quantum Cosmology · Physics 2019-04-08 Bin Liang , Shao-Wen Wei , Yu-Xiao Liu

We investigate the weak cosmic censorship conjecture in Kerr-(anti-)de Sitter black holes under the scattering of a scalar field. We test the conjecture in terms of whether the black hole can exceed the extremal condition with respect to…

General Relativity and Quantum Cosmology · Physics 2018-09-18 Bogeun Gwak

We test the weak cosmic censorship conjecture for magnetized Kerr-Newman spacetime via the method of injecting a test particle. Hence, we need to know how the black hole's parameters change when a test particle enters the horizon. This was…

General Relativity and Quantum Cosmology · Physics 2022-09-14 Yunjiao Gao , Sijie Gao

We study the scenario in which a massive particle is thrown into a rapidly rotating Kerr black hole in an attempt to spin it up beyond its extremal limit, challenging weak cosmic censorship. We work in black-hole perturbation theory, and…

General Relativity and Quantum Cosmology · Physics 2015-06-11 Marta Colleoni , Leor Barack

We examine a nearly extreme macroscopic Reissner-Nordstrom black hole in the context of semi-classical gravity. The absorption rate associated with the quantum tunneling process of scalar particles whereby this black hole can acquire enough…

General Relativity and Quantum Cosmology · Physics 2008-11-26 George E. A. Matsas , André R. R. da Silva

It has been argued that, starting with a slightly sub-extremal Kerr black hole instead of an extremal one, it is possible to overspin a black hole past the extremal limit and turn it into a naked singularity by sending test bodies, if one…

General Relativity and Quantum Cosmology · Physics 2015-06-16 Koray Düztaş , İbrahim Semiz

According to the Cosmic Censorship Conjecture, all the singularities produced by the collapsing matter must be hidden behind an event horizon. In 4D general relativity, this implies that the final product of the collapse is a Kerr-Newman…

General Relativity and Quantum Cosmology · Physics 2010-01-04 Cosimo Bambi

We investigate the weak cosmic censorship conjecture in Myers-Perry black holes with arbitrary rotations in general dimensions based on the scattering of a massless scalar field. From the fluxes of the scalar field flowing into the black…

General Relativity and Quantum Cosmology · Physics 2022-10-28 Bogeun Gwak

Motivated by the recent attempts to violate the weak cosmic censorship conjecture for near-extreme black-holes, we consider the possibility of overcharging a near-extreme Reissner-Nordstr\"om black hole by the quantum tunneling of charged…

General Relativity and Quantum Cosmology · Physics 2011-11-15 Maurício Richartz , Alberto Saa

In this work we investigate validity of the weak form of the cosmic censorship conjecture in the interaction of Kerr-Sen black holes with neutral test fields. Previous studies of the Klein-Gordon equation on Kerr-Sen background imply that…

General Relativity and Quantum Cosmology · Physics 2018-11-09 Koray Düztaş

We check the weak cosmic censorship conjecture by attempting to overspin the Kerr-Newman-Kasuya black hole with test particle. The study suggests that the Kerr-Newman-Kasuya black hole can be over-spun showing the violation of cosmic…

General Relativity and Quantum Cosmology · Physics 2020-12-02 Ayyesha K. Ahmed , Azad A. Siddiqui

It is known that a near-extremal Kerr black hole can be spun up beyond its extremal limit by capturing a test particle. Here we show that overspinning is always averted once back-reaction from the particle's own gravity is properly taken…

General Relativity and Quantum Cosmology · Physics 2015-08-18 Marta Colleoni , Leor Barack , Abhay G. Shah , Maarten van de Meent

We test the validity of cosmic censorship in the rotating anti-de Sitter black hole. For this purpose, we investigate whether the extremal black hole can be overspun by the particle absorption. The particle absorption will change the mass…

General Relativity and Quantum Cosmology · Physics 2016-02-11 Bogeun Gwak , Bum-Hoon Lee

Considering the cosmological constant as the pressure, we mainly study the laws of thermodynamics and weak cosmic censorship conjecture in the Reissner-Nordstr\"{o}m-AdS black hole surrounded by quintessence dark energy under charged…

General Relativity and Quantum Cosmology · Physics 2019-12-19 Ke-Jian He , Xin-Yun Hu , Xiao-Xiong Zeng

We evaluate the validity of the weak form of the cosmic censorship conjecture and the third law of black hole dynamics for Kerr-MOG black holes interacting with scalar test fields. Ignoring backreaction effects, we first show that both…

General Relativity and Quantum Cosmology · Physics 2020-01-17 Koray Düztaş

Motivated by the recent researches of black holes with NUT charge, we investigate the validity of the weak cosmic censorship conjecture for Kerr-Taub-NUT black hole with a test massive scalar field and a test particle, respectively. For the…

General Relativity and Quantum Cosmology · Physics 2020-04-01 Si-Jiang Yang , Jing Chen , Jun-Jie Wan , Shao-Wen Wei , Yu-Xiao Liu
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