Slow relaxation of rapidly rotating black holes
| dc.creator | Hod, Shahar | |
| dc.date | 2008-11-24 | |
| dc.date.accessioned | 2026-07-07T12:16:05Z | |
| dc.date.available | 2026-07-07T12:16:05Z | |
| dc.description | We study analytically the relaxation phase of perturbed, rapidly rotating black holes. In particular, we derive a simple formula for the fundamental quasinormal resonances of near-extremal Kerr black holes. The formula is expressed in terms of the black-hole physical parameters: omega=m Omega-i2 pi T(n+1/2), where T and Omega are the temperature and angular velocity of the black hole, and m is the azimuthal harmonic index of a co-rotating equatorial mode. This formula implies that the relaxation period tau sim 1/Im(omega) of the black hole becomes extremely long as the extremal limit T to 0 is approached. The analytically derived formula is shown to agree with direct numerical computations of the black-hole resonances. We use our results to demonstrate analytically the fact that near-extremal Kerr black holes saturate the recently proposed universal relaxation bound. | |
| dc.description | 5 pages | |
| dc.identifier | https://arxiv.org/abs/0811.3806 | |
| dc.identifier | http://arxiv.org/abs/0811.3806 | |
| dc.identifier | Phys.Rev.D78:084035,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.084035 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/211690 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Quantum Physics | |
| dc.title | Slow relaxation of rapidly rotating black holes | |
| dc.type | text |