Unconventional Gravitational Excitation of a Schwarzschild Black Hole

Details Unconventional Gravitational Excitation of a Schwarzschild Black Hole Unconventional Gravitational Excitation of a Schwarzschild Black Hole

2003-01-06

arxiv.org/abs/gr-qc/0301018v4

Class.Quant.Grav. 20 (2003) L217-3532

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

REVTeX4, 4pp, 6 EPS figure files. N.B.: "Alec" is my first, and "Maassen van den Brink" my family name. v2: better pole placem

Scientific paper

10.1088/0264-9381/20/16/101

Besides the well-known quasinormal modes, the gravitational spectrum of a Schwarzschild black hole also has a continuum part on the negative imaginary frequency axis. The latter is studied numerically for quadrupole waves. The results show unexpected striking behavior near the algebraically special frequency $\Omega=-4i$. This reveals a pair of unconventional damped modes very near $\Omega$, confirmed analytically.

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