Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime

Abstract In this work, we first calculate equations of motion for particles in the Kerr-Sen-de Sitter black hole spacetime. Then, in the eikonal regime, we analytically obtain the quasi-normal resonant modes of massless neutral scalar field perturbation and find its imaginary part to be characterize...

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Autores principales:	Ming Zhang, Jie Jiang
Formato:	article
Lenguaje:	EN
Publicado:	SpringerOpen 2021
Materias:	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
Acceso en línea:	https://doaj.org/article/fd68a48878a24de496a15a2bb2b8098a
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spelling	oai:doaj.org-article:fd68a48878a24de496a15a2bb2b8098a2021-11-08T10:43:20ZStrong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime10.1140/epjc/s10052-021-09753-x1434-60441434-6052https://doaj.org/article/fd68a48878a24de496a15a2bb2b8098a2021-11-01T00:00:00Zhttps://doi.org/10.1140/epjc/s10052-021-09753-xhttps://doaj.org/toc/1434-6044https://doaj.org/toc/1434-6052Abstract In this work, we first calculate equations of motion for particles in the Kerr-Sen-de Sitter black hole spacetime. Then, in the eikonal regime, we analytically obtain the quasi-normal resonant modes of massless neutral scalar field perturbation and find its imaginary part to be characterized by the surface gravity of a near-extremal Kerr-Sen-de Sitter black hole with the Cauchy horizon approaching the event horizon. We further show that the Penrose strong cosmic censorship conjecture is thus respected in this spacetime with dilaton scalar field and axion pseudoscalar field.Ming ZhangJie JiangSpringerOpenarticleAstrophysicsQB460-466Nuclear and particle physics. Atomic energy. RadioactivityQC770-798ENEuropean Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798
spellingShingle	Astrophysics QB460-466 Nuclear and particle physics. Atomic energy. Radioactivity QC770-798 Ming Zhang Jie Jiang Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
description	Abstract In this work, we first calculate equations of motion for particles in the Kerr-Sen-de Sitter black hole spacetime. Then, in the eikonal regime, we analytically obtain the quasi-normal resonant modes of massless neutral scalar field perturbation and find its imaginary part to be characterized by the surface gravity of a near-extremal Kerr-Sen-de Sitter black hole with the Cauchy horizon approaching the event horizon. We further show that the Penrose strong cosmic censorship conjecture is thus respected in this spacetime with dilaton scalar field and axion pseudoscalar field.
format	article
author	Ming Zhang Jie Jiang
author_facet	Ming Zhang Jie Jiang
author_sort	Ming Zhang
title	Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
title_short	Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
title_full	Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
title_fullStr	Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
title_full_unstemmed	Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime
title_sort	strong cosmic censorship in near-extremal kerr-sen-de sitter spacetime
publisher	SpringerOpen
publishDate	2021
url	https://doaj.org/article/fd68a48878a24de496a15a2bb2b8098a
work_keys_str_mv	AT mingzhang strongcosmiccensorshipinnearextremalkerrsendesitterspacetime AT jiejiang strongcosmiccensorshipinnearextremalkerrsendesitterspacetime
_version_	1718442773127888896

Strong cosmic censorship in near-extremal Kerr-Sen-de Sitter spacetime

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