Superradiant instability for black holes immersed in a magnetic field
| dc.creator | Konoplya, R. A. | |
| dc.date | 2008-01-07 | |
| dc.date | 2008-11-22 | |
| dc.date.accessioned | 2026-07-07T12:29:57Z | |
| dc.date.available | 2026-07-07T12:29:57Z | |
| dc.description | We consider the bound states of the massive scalar field around a rotating black hole immersed in the asymptotically uniform magnetic field. In the regime of slow black hole rotation, the Klein-Gordon equation allows separation of variables. We show that the growth rate of the instability can be amplified a few times by the magnetic field. The effect occurs because the magnetic field adds the "effective mass" term $B |m|$ to the scalar field potential for a Kerr black hole. In addition, and as a by-product, we discuss the behavior of the quasinormal modes for the magnetized rotating black holes. | |
| dc.description | 10 pages, Latex, 5 figures, corrected version | |
| dc.identifier | https://arxiv.org/abs/0801.0846 | |
| dc.identifier | http://arxiv.org/abs/0801.0846 | |
| dc.identifier | Phys.Lett.B666:283-287,2008; Phys.Lett.B670:459,2009 | |
| dc.identifier | doi:10.1016/j.physletb.2008.07.079 10.1016/j.physletb.2008.11.059 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/216002 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Superradiant instability for black holes immersed in a magnetic field | |
| dc.type | text |