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Wang, Yu-Tong; Zhang, Jun1; Piao, Yun-Song
Primordial gravastar from inflation
Source PublicationPHYSICS LETTERS B
AbstractThe de Sitter (dS) bubbles can nucleate spontaneously during inflation, and will be stretched by the cosmological expansion to astrophysical scale. We report on a novel phenomenon that some of such bubbles might develop into the gravastar (the ultra-compact object with a dS core) after inflation, which witnessed the occurrence of inflation and might survive till today. It is pointed out that if such a primordial star was involved in one of the LIGO/Virgo events, the post-merger object will eventually collapse into a black hole. As a result, the late-time gravitational wave ringdown waveform will exhibit a series of "echoes" with intervals increasing with time. (C) 2019 The Authors. Published by Elsevier B.V.
Cooperation Status国际
Subject AreaAstronomy & Astrophysics ; Physics
MOST Discipline CatalogueAstronomy & Astrophysics ; Physics, Nuclear ; Physics, Particles & Fields
Indexed BySCIE
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Affiliation1.Univ Chinese Acad Sci, Sch Phys, Beijing 100049, Peoples R China
2.York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada
3.Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yu-Tong,Zhang, Jun,Piao, Yun-Song. Primordial gravastar from inflation[J]. PHYSICS LETTERS B,2019,795:314-318.
APA Wang, Yu-Tong,Zhang, Jun,&Piao, Yun-Song.(2019).Primordial gravastar from inflation.PHYSICS LETTERS B,795,314-318.
MLA Wang, Yu-Tong,et al."Primordial gravastar from inflation".PHYSICS LETTERS B 795(2019):314-318.
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