Gravitational wave recoil in Robinson-Trautman spacetimes


Autoria(s): MACEDO, Rodrigo P.; SAA, Alberto
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

18/04/2012

18/04/2012

2008

Resumo

We consider the gravitational recoil due to nonreflection-symmetric gravitational wave emission in the context of axisymmetric Robinson-Trautman spacetimes. We show that regular initial data evolve generically into a final configuration corresponding to a Schwarzschild black hole moving with constant speed. For the case of (reflection-)symmetric initial configurations, the mass of the remnant black hole and the total energy radiated away are completely determined by the initial data, allowing us to obtain analytical expressions for some recent numerical results that have appeared in the literature. Moreover, by using the Galerkin spectral method to analyze the nonlinear regime of the Robinson-Trautman equations, we show that the recoil velocity can be estimated with good accuracy from some asymmetry measures (namely the first odd moments) of the initial data. The extension for the nonaxisymmetric case and the implications of our results for realistic situations involving head-on collision of two black holes are also discussed.

FAPESP

CNPq

Identificador

PHYSICAL REVIEW D, v.78, n.10, 2008

1550-7998

http://producao.usp.br/handle/BDPI/16376

10.1103/PhysRevD.78.104025

http://dx.doi.org/10.1103/PhysRevD.78.104025

Idioma(s)

eng

Publicador

AMER PHYSICAL SOC

Relação

Physical Review D

Direitos

restrictedAccess

Copyright AMER PHYSICAL SOC

Palavras-Chave #SUPERMASSIVE BLACK-HOLES #COALESCING BINARY-SYSTEMS #RADIATION RECOIL #NUMERICAL RELATIVITY #GENERAL RELATIVITY #COMPACT OBJECTS #MOMENTUM #ORDER #EQUATION #Astronomy & Astrophysics #Physics, Particles & Fields
Tipo

article

original article

publishedVersion