Where is the extremal Kerr ISCO?

Although the circular photon orbit and ISCO for the Kerr black hole remain distinct from each other and from the horizon in the extremal spin limit on a constant Boyer-Lindquist time slice, on a horizon-crossing slice they both coincide with the null generators of the horizon.

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Bibliographische Detailangaben
Veröffentlicht in:	Classical and quantum gravity 2011-09, Vol.28 (18), p.187001-5
1. Verfasser:	Jacobson, Ted
Format:	Artikel
Sprache:	eng
Schlagworte:	Circularity Constants Exact sciences and technology General relativity and gravitation Generators Orbits Photons Physics Quantum gravity
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Although the circular photon orbit and ISCO for the Kerr black hole remain distinct from each other and from the horizon in the extremal spin limit on a constant Boyer-Lindquist time slice, on a horizon-crossing slice they both coincide with the null generators of the horizon.
ISSN:	0264-9381 1361-6382
DOI:	10.1088/0264-9381/28/18/187001