paper

Quasi-normal modes of Schwarzschild-de Sitter black holes

arXiv:gr-qc/0307012 · doi:10.1088/0264-9381/21/1/019

Abstract

The low-laying frequencies of characteristic quasi-normal modes (QNM) of Schwarzschild-de Sitter (SdS) black holes have been calculated for fields of different spin using the 6th-order WKB approximation and the approximation by the Pöshl-Teller potential. The well-known asymptotic formula for large is generalized here on a case of the Schwarzchild-de Sitter black hole. In the limit of the near extreme term the results given by both methods are in a very good agreement, and in this limit fields of different spin decay with the same rate.

9 pages, 1 ancillary Mathematica(R) notebook

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