Artigo Acesso aberto Revisado por pares

Evolution of Binary Black-Hole Spacetimes

2005; American Physical Society; Volume: 95; Issue: 12 Linguagem: Inglês

10.1103/physrevlett.95.121101

ISSN

1092-0145

Autores

Frans Pretorius,

Tópico(s)

Black Holes and Theoretical Physics

Resumo

We describe early success in the evolution of binary black-hole spacetimes with a numerical code based on a generalization of harmonic coordinates. Indications are that with sufficient resolution this scheme is capable of evolving binary systems for enough time to extract information about the orbit, merger, and gravitational waves emitted during the event. As an example we show results from the evolution of a binary composed of two equal mass, nonspinning black holes, through a single plunge orbit, merger, and ringdown. The resultant black hole is estimated to be a Kerr black hole with angular momentum parameter a approximately 0.70. At present, lack of resolution far from the binary prevents an accurate estimate of the energy emitted, though a rough calculation suggests on the order of 5% of the initial rest mass of the system is radiated as gravitational waves during the final orbit and ringdown.

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