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Modelling binary black-hole coalescence

John Baker

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The final burst of radiation from the coalescence of two supermassive black holes produces extraordinary gravitational wave luminosity making these events visible to LISA even out to large redshift. Interpreting such observations will require detailed theoretical models, based on general relativity. The effort to construct these models is just beginning to produce results. I describe the Lazarus approach to modelling these radiation bursts, and present recent results which indicate that the system loses, in the last few wave cycles, about 3% of its mass–energy as strongly polarized gravitational radiation.


PACS

04.70.-s Physics of black holes

04.25.Nx Post-Newtonian approximation; perturbation theory; related approximations

04.30.Db Wave generation and sources

04.25.D- Numerical relativity

MSC

83C35 Gravitational waves

83C25 Approximation procedures, weak fields

83C05 Einstein's equations (general structure, canonical formalism, Cauchy problems)

83C57 Black holes

Subjects

Gravitation and cosmology

Dates

Issue 10 (21 May 2003)

Received 12 December 2002

Published 29 April 2003



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