Innermost stable circular orbit of Kerr-MOG black hole
Hyun‐Chul LeeDepartment of Physics, Soonchunhyang University, Asan, 31537, Republic of KoreaYong-Jin HanDepartment of Physics, Soonchunhyang University, Asan, 31537, Republic of Korea
2017en
ABI
Abstract
We study the innermost stable circular orbit (ISCO) of the metric of the Kerr black hole in modified gravity (Kerr-MOG black hole), which is one of the exact solutions of the field equation of modified gravity in the strong gravity regime. The Kerr-MOG metric is constructed; it is the commonly known Kerr metric in Boyer–Lindquist coordinates by adding a repulsive term like the Yukawa force, which is explained in quantum gravity. In this paper, we numerically calculate the circular orbit of a photon and the ISCO of a test particle of Kerr-MOG black holes.
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