MISC

2008年8月

Energy extraction from a rotating black hole by magnetic reconnection in the ergosphere

ASTROPHYSICAL JOURNAL
  • Shinji Koide
  • ,
  • Kenzo Arai

682
2
開始ページ
1124
終了ページ
1133
記述言語
英語
掲載種別
DOI
10.1086/589497
出版者・発行元
UNIV CHICAGO PRESS

We investigate mechanisms of energy extraction from a rotating black hole in terms of negative energy at infinity. In addition to the Penrose process through particle fission, the Blandford-Znajek mechanism by magnetic tension, and the magnetohydrodynamic Penrose process, we examine energy extraction from a black hole caused by magnetic reconnection in the ergosphere. The reconnection redistributes the angular momentum efficiently to yield the negative energy at infinity. We derive a condition for the process to operate in a simple situation, where the plasma is incompressible and the magnetic energy is converted completely to the plasma kinetic energy locally. Astrophysical situations of magnetic reconnection around the black holes are also discussed.

リンク情報
DOI
https://doi.org/10.1086/589497
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000258026100037&DestApp=WOS_CPL
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=53549093908&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=53549093908&origin=inward
ID情報
  • DOI : 10.1086/589497
  • ISSN : 0004-637X
  • eISSN : 1538-4357
  • SCOPUS ID : 53549093908
  • Web of Science ID : WOS:000258026100037

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