Quasinormal Modes of Dirty Black Holes

Details Quasinormal Modes of Dirty Black Holes Quasinormal Modes of Dirty Black Holes

1999-03-08

arxiv.org/abs/gr-qc/9903031v1

Phys.Rev.Lett. 78 (1997) 2894-2897

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages. Published in PRL

Scientific paper

10.1103/PhysRevLett.78.2894

Quasinormal mode (QNM) gravitational radiation from black holes is expected to be observed in a few years. A perturbative formula is derived for the shifts in both the real and the imaginary part of the QNM frequencies away from those of an idealized isolated black hole. The formulation provides a tool for understanding how the astrophysical environment surrounding a black hole, e.g., a massive accretion disk, affects the QNM spectrum of gravitational waves. We show, in a simple model, that the perturbed QNM spectrum can have interesting features.

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