Where is the extremal Kerr ISCO?
General Relativity and Quantum Cosmology
2015-05-28 v2 High Energy Physics - Theory
Abstract
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.
Cite
@article{arxiv.1107.5081,
title = {Where is the extremal Kerr ISCO?},
author = {Ted Jacobson},
journal= {arXiv preprint arXiv:1107.5081},
year = {2015}
}
Comments
6 pages; v2: minor cosmetic changes; coincides with published version