Maqola

Probing Hořava-Lifshitz gravity using particle and photon dynamics in the presence of plasma*

Mirzabek AlloqulovInstitute of Fundamental and Applied Research, National Research University TIIAME, Kori Niyoziy 39, Tashkent 100000, UzbekistanFarruh AtamurotovAkfa University, Milliy Bog’ Street 264, Tashkent 111221, UzbekistanAhmadjon AbdujabbarovNational University of Uzbekistan, Tashkent 100174, UzbekistanBobomurat AhmedovInstitute of Fundamental and Applied Research, National Research University TIIAME, Kori Niyoziy 39, Tashkent 100000, Uzbekistan

Chinese Physics Cjournal2023en

ABI

Annotatsiya

Abstract We study the particle motion around a black hole (BH) in Hořava-Lifshitz (HL) gravity with the Kehagias-Sfetsos (KS) parameter. First, the innermost stable circular orbit (ISCO) is obtained for massive particles around the BH in HL gravity. We find that the radii of the ISCOs decrease as the KS parameter decreases, meaning that the parameter causes the orbits of particles to move inward with respect to that of the Schwarzschild BH case. Then, the optical properties of a KS BH are studied in detail, that is, the BH shadow and gravitational weak lensing. We demonstrate that the size of the BH shadow decreases under the influence of the KS parameter.

Mavzular

Pulsars and Gravitational Waves Research Astrophysics and Cosmic Phenomena Astrophysical Phenomena and Observations

Identifikatorlar

DOI: 10.1088/1674-1137/acd43c

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