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arXiv · 2001.03106

Weak cosmic censorship conjecture for Kerr-Taub-NUT black hole with test scalar field and particle

Si-Jiang Yang·Jing Chen·Jun-Jie Wan·Shao-Wen Wei·Yu-Xiao Liu
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Abstract

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 scalar field scattering gedanken experiment, we consider an infinitesimal time interval process. The result shows that both extremal and near-extremal Kerr-Taub-NUT black holes cannot be over-spun. For the test particle thought experiment, the study suggests that extremal Kerr-Taub-NUT black hole cannot be over-spun; while near-extremal Kerr-Taub-NUT black hole can be over-spun. By comparing the two methods, the results indicate the time interval for particles crossing the black hole horizon might be important for consideration of the weak cosmic censorship conjecture.

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Si-Jiang Yang, Jing Chen, Jun-Jie Wan, Shao-Wen Wei, Yu-Xiao Liu. 2020-01-09. Weak cosmic censorship conjecture for Kerr-Taub-NUT black hole with test scalar field and particle. https://doi.org/10.1103/physrevd.101.064048

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