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Evolution of massive fields around a black hole in Hořava gravity |
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| Authors: | Nijo Varghese V C Kuriakose |
| Institution: | (1) Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai, 200030, China;(2) Hefei Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, 230031, Anhui, China;(3) Graduate School of Chinese Academy of Sciences, Beijing, 100039, China;(4) National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China;(5) Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100080, China |
| Abstract: | We study the evolution of massive scalar field in the spacetime geometry of Kehagias-Sfetsos black hole in deformed Hořava-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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