5 papers
Analysis of minimum orbital periods around d-dimensional charged black holes
Yan Peng, Guohua Liu
This paper investigates the bounds on the minimum orbital period for test objects around d-dimensional charged black holes in asymptotically flat spacetimes. We find numerically th…
Bounds on the minimum orbital period in the background of 5-dimensional charged black holes
Yan Peng
In this paper, we study the upper and lower bounds on the minimum orbital period of 5-dimensional charged black holes. Our results indicate that the upper bound of the minimum orbi…
Bounds on the minimum orbital periods of non-singular Hayward and Bardeen black holes
Guohua Liu, Yan Peng
Based on previous studies, universal bounds were conjectured to be characteristic properties of black hole spacetimes, where rep…
An upper bound on the minimum orbital period of black holes
Yan Peng
Previous research has focused on establishing lower bounds on the minimum orbital period of black holes. In this work, we explore the complementary question of whether an upper bou…
Lower bound on the orbital period of Kerr-Newman black holes
Yan Peng
Based on the orbital period of Kerr black holes, Hod proposed a conjecture that a general lower bound on the orbital period may exist. In this work, we examined this bound by explo…