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Does a black hole rotate in Chern-Simons modified gravity?

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Title: Does a black hole rotate in Chern-Simons modified gravity?
Authors: Konno, Kohkichi Browse this author
Matsuyama, Toyoki Browse this author
Tanda, Satoshi Browse this author
Issue Date: 20-Jul-2007
Publisher: American Physical Society
Journal Title: Physical Review D
Volume: 76
Issue: 2
Start Page: 024009
Publisher DOI: 10.1103/PhysRevD.76.024009
Abstract: Rotating black hole solutions in the (3+1)-dimensional Chern-Simons modified gravity theory are discussed by taking account of perturbation around the Schwarzschild solution. The zenith-angle dependence of a metric function related to the frame-dragging effect is determined from a constraint equation independently of a choice of the embedding coordinate. We find that at least within the framework of the first-order perturbation method, the black hole cannot rotate for finite black hole mass if the embedding coordinate is taken to be a timelike vector. However, the rotation can be permitted in the limit of M/r-->0 (where M is the black hole mass and r is the radius). For a spacelike vector, the rotation can also be permitted for any value of the black hole mass.
Rights: Copyright © 2007 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 金野 幸吉

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