論文

査読有り
2019年10月14日

Bursts of particle creation in gravitational collapse to a horizonless compact object

Physical Review D
  • Takafumi Kokubu
  • ,
  • Tomohiro Harada

100
8
記述言語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevD.100.084028

© 2019 American Physical Society. In the previous paper [Harada, Cardoso, and Miyata, Phys. Rev. D 99 (2019), 044039PRVDAQ2470-001010.1103/PhysRevD.99.044039], it is shown that a hollow transmissive shell collapsing to an ultracompact object of radius very close to its horizon radius generally emits transient Hawking radiation (THR) followed by a couple of bursts separated from each other by a long time interval. In the current paper, we expand the previous work in two independent directions: changing boundary conditions and specifying the equations of state (EOSs) of the matter. First, we introduce a perfectly reflective surface collapsing to an ultracompact object and find that this model also emits THR that is followed only by a single burst. Second, we introduce two different collapse dynamics to an ultracompact object and specify the corresponding matter EOSs. We find that THR is quite commonly seen in early times, while the subsequent bursts strongly depend on the boundary condition and the EOS or the braking behavior of the surface.

リンク情報
DOI
https://doi.org/10.1103/PhysRevD.100.084028
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85074330269&origin=inward
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85074330269&origin=inward
ID情報
  • DOI : 10.1103/PhysRevD.100.084028
  • ISSN : 2470-0010
  • eISSN : 2470-0029
  • SCOPUS ID : 85074330269

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