Stability of black holes in Horava gravity: Gravitational quasinormal modes

Abstract

Gravitational perturbations in the geometry of asymptotically flat black hole solution in the deformed Hořava-Lifshitz(HL) gravity are considered and the associated quasinormal mode(QNM) frequencies are evaluated using WKB method. Black holes are found to be stable against small perturbations. We also find a significant deviation in the behavior of QNMs in HL theory for low values of HL parameter $\omega$, from that in the standard General Relativity(GR). QNMs are long lived in Hořava theory compared with the usual Schwarzschild black hole case.

arXiv comment9 pages, reference added

Cited by in corpus (1)

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