TOPICAL REVIEW: Quasinormal modes: the characteristic `sound' of black holes and neutron stars

Details TOPICAL REVIEW: Quasinormal modes: the characteristic `sound' of black holes and neutron stars TOPICAL REVIEW: Quasinormal modes: the characteristic `sound' of black holes and neutron stars

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cqgra..16r.159n&link_type=abstract

Classical and Quantum Gravity, Volume 16, Issue 12, pp. R159-R216 (1999).

Computer Science

248

Scientific paper

Gravitational waves emitted by perturbed black holes or relativistic stars are dominated by `quasinormal ringing', damped oscillations at single frequencies which are characteristic of the underlying system. These quasinormal modes have been studied for a long time, often with the intent of describing the time evolution of a perturbation in terms of these modes in a way very similar to a normal-mode analysis. In this review, we summarize how quasinormal modes are defined and computed. We will see why they have been regarded as closely analogous to normal modes, and discover why they are actually quite different. We also discuss how quasinormal modes can be used in the analysis of a gravitational wave signal, such as will hopefully be detected in the near future.

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