204 citations · 1.9k across the 54 of their papers we have counts for
10 papers · 1 filter
Scalar perturbations on the background of Kerr black holes in the quadratic dynamical Chern-Simons gravity
Yuan-Xing Gao, Yang Huang, Dao-Jun Liu
We study the scalar perturbation on the background of a Kerr black hole in the dynamical Chern-Simons modified gravity with a quadratic coupling between the scalar field and Chern-…
Revisiting the shadow of a black hole in the presence of a plasma
Yang Huang, Yi-Ping Dong, Dao-Jun Liu
We study the photon's motion around a black hole in the presence of a plasma whose density is a function of the radius coordinate by a renewed ray-tracing algorithm and investigate…
On the instability for massive scalar fields in Kerr-Newman spacetime
Yang Huang, Dao-Jun Liu, Xiang-hua Zhai +1
It is known that a massive charged scalar field can trigger a superradiant instability in the background of a Kerr-Newman black hole. In this paper, we present a numerical study of…
Massive charged Dirac fields around Reissner-Nordström black holes: quasibound states and long-lived modes
Yang Huang, Dao-Jun Liu, Xiang-hua Zhai +1
The behavior of a massive charged test Dirac field in the background of a Reissner-Nordström black hole is investigated. Especially, we obtain the frequencies of quasibound states…
Scalar clouds around Kerr-Sen black holes
Yang Huang, Dao-Jun Liu, Xiang-Hua Zhai +1
In this paper, the behaviour of a charged massive scalar test field in the background of a Kerr-Sen black hole is investigated. A kind of stationary solutions, dubbed scalar clouds…
Strong gravitational lensing for the photons coupled to Weyl tensor in a Kerr black hole spacetime
Songbai Chen, Shangyun Wang, Yang Huang +2
We present firstly equation of motion for the photon coupled to Weyl tensor in a Kerr black hole spacetime and then study further the corresponding strong gravitational lensing. We…
Scalar clouds and the superradiant instability regime of Kerr-Newman black hole
Yang Huang, Dao-Jun Liu
In this paper, we study a physical system that is composed of massive charged scalar field linearly coupled to a charged rotating Kerr-Newman black hole. Given the parameters of bl…
Double shadow of a regular phantom black hole as photons couple to Weyl tensor
Yang Huang, Songbai Chen, Jiliang Jing
We have studied the shadow of a regular phantom black hole as photons couple to Weyl tensor. We find that the coupling yields that photons with different polarization directions pr…
Superradiant instability of -dimensional Reissner-Nordström-anti-de Sitter black hole mirror system
Yang Huang, Dao-Jun Liu, Xin-Zhou Li
In this paper, a detailed analysis for superradiant stability of the system composed by a -dimensional Reissner-Nordström-anti-de Sitter (RN-AdS) black hole and a reflecting mir…
Charged scalar perturbations around a regular magnetic black hole
Yang Huang, Dao-Jun Liu
We study charged scalar perturbations in the background of a regular magnetic black hole. In this case, the charged scalar perturbation does not result in superradiance. By using c…