論文

査読有り
2002年11月

Tolman-Bondi collapse in scalar-tensor theories as a probe of gravitational memory

PHYSICAL REVIEW D
  • T Harada
  • ,
  • C Goymer
  • ,
  • BJ Carr

66
10
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevD.66.104023
出版者・発行元
AMERICAN PHYSICAL SOC

In cosmological models with a varying gravitational constant, it is not clear whether primordial black holes preserve the value of G at their formation epoch. We investigate this question by using the Tolman-Bondi model to study the evolution of a background scalar field when a black hole forms from the collapse of dust in a flat Friedmann universe. Providing the back reaction of the scalar field on the metric can be neglected, we find that the value of the scalar field at the event horizon very quickly assumes the background cosmological value. This suggests that there is very little gravitational memory.


リンク情報
DOI
https://doi.org/10.1103/PhysRevD.66.104023
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000179679900048&DestApp=WOS_CPL
ID情報
  • DOI : 10.1103/PhysRevD.66.104023
  • ISSN : 0556-2821
  • Web of Science ID : WOS:000179679900048

エクスポート
BibTeX RIS