Neutron star structure in Hořava-Lifshitz gravity
Kyungmin KimKorea Astronomy and Space Science Institute, Daejeon 34055, Republic of KoreaJ. J. OhNational Institute for Mathematical Sciences, Daejeon 34047, Republic of KoreaChan ParkNational Institute for Mathematical Sciences, Daejeon 34047, Republic of KoreaEdwin J. SonNational Institute for Mathematical Sciences, Daejeon 34047, Republic of Korea
2021en
ABI
Abstract
We present interesting aspects of neutron stars (NSs) from the standpoint of a modified theory of gravity called Ho\ifmmode \check{r}\else \v{r}\fi{}ava-Lifshitz (HL) gravity. A deviation from general relativity (GR) in HL gravity can change typical features of the NS structure. In this study, we investigate the NS structure by deriving the Tolman-Oppenheimer-Volkoff equation in HL gravity. We find that a NS in HL gravity with a larger radius and heavier mass than a NS in GR remains stable without collapsing into a black hole.
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Cited by 30 references