Evolution of massive fields around a black hole in Horava gravity

Details Evolution of massive fields around a black hole in Horava gravity Evolution of massive fields around a black hole in Horava gravity

2010-11-30

arxiv.org/abs/1011.6608v2

Gen.Rel.Grav.43:2757-2767,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

The article was fully rewritten, references added, accepted to GRG

Scientific paper

10.1007/s10714-011-1201-y

We study the evolution of massive scalar field in the spacetime geometry of Kehagias-Sfetsos(KS) black hole in deformed Horava-Lifshitz(HL) gravity by numerical analysis. We find that the signature of HL theory is encoded in the quasinormal mode(QNM) phase of the evolution of field. The QNM phase in the evolution process lasts for a longer time in HL theory. QNMs involved in the evolution of massive field are calculated and find that they have a higher oscillation frequency and a lower damping rate than the Schwarzschild spacetime case. We also study the relaxation of field in the intermediate and asymptotic range and verified that behaviors of field in these phases are independent of the HL parameter and is identical to the Schwarzschild case.

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