論文

査読有り
2014年12月

How small can an over-spinning body be in general relativity?

PHYSICAL REVIEW D
  • Ken-ichi Nakao
  • ,
  • Masashi Kimura
  • ,
  • Tomohiro Harada
  • ,
  • Mandar Patil
  • ,
  • Pankaj S. Joshi

90
12
開始ページ
124079
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevD.90.124079
出版者・発行元
AMER PHYSICAL SOC

The angular momentum of the Kerr singularity should not be larger than a threshold value so that it is enclosed by an event horizon: The Kerr singularity with the angular momentum exceeding the threshold value is naked. This fact suggests that if the cosmic censorship exists in our Universe, an over-spinning body without releasing its angular momentum cannot collapse to spacetime singularities. A simple kinematical estimate of two particles approaching each other supports this expectation and suggests the existence of a minimum size of an over-spinning body. But this does not imply that the geometry near the naked singularity cannot appear. By analyzing initial data, i.e., a snapshot of a spinning body, we see that an over-spinning body may produce a geometry close to the Kerr naked singularity around itself at least as a transient configuration.


リンク情報
DOI
https://doi.org/10.1103/PhysRevD.90.124079
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000347204300014&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?eid=2-s2.0-84920187749&partnerID=MN8TOARS
ID情報
  • DOI : 10.1103/PhysRevD.90.124079
  • ISSN : 1550-7998
  • eISSN : 1550-2368
  • ORCIDのPut Code : 25712416
  • SCOPUS ID : 84920187749
  • Web of Science ID : WOS:000347204300014

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