144 citations · 1.2k across the 33 of their papers we have counts for
33 papers
Test the Weak Cosmic Supervision Conjecture in Dark Matter-Black Hole System
Liping Meng, Zhaoyi Xu, Meirong Tang
There is a possibility that the event horizon of a Kerr-like black hole with perfect fluid dark matter (DM) can be destroyed, providing a potential opportunity for understanding th…
Destroying the Event Horizon of a Rotating Black-Bounce Black Hole
Lai Zhao, Zhaoyi Xu
For a rotating black hole to be nonsingular, it means that there are no spacetime singularities at its center. The destruction of the event horizon of such a rotating black hole is…
Quasinormal modes of dark matter core-black hole spacetime
Min Zhao, Meirong Tang, Zhaoyi Xu
In the galactic core, when the scale of dark matter is small, the distribution of dark matter is that of a constant density dark matter core.Considering the case of a supermassive…
Modeling the black holes surrounded by a dark matter halo in the galactic center of M87
Dong Liu, Yi Yang, Zhaoyi Xu +1
In this paper, the structure of a dark matter halo can be well described by the mass model of M87 and the Einasto profile for the cold dark matter model, i.e., $ρ_{\text{eina}} (r)…
Exact solution of Kerr-like traversable wormhole in dark matter halo
Zhaoyi Xu
Dark matter halos are common in galaxies and globular clusters, making it possible to use dark matter density profiles to construct transverse wormholes. In reference [1], an appro…
Semi-classical rotating black hole in loop quantum gravity
Zhaoyi Xu
In the research paper [1], the analytical solution of semi-classical rotating black holes (BH) in loop quantum gravity theory (LQG) is obtained, but an unknown function is stil…
Ringing and echoes from black bounces surrounded by the string cloud
Yi Yang, Dong Liu, Zhaoyi Xu +1
In the string theory, the fundamental blocks of nature are not particles but one-dimensional strings. Therefore, a generalization of this idea is to think of it as a cloud of strin…
The no-hair theorem and black hole shadows
Meirong Tang, Zhaoyi Xu
The successful observation of M87 supermassive black hole by the Black Hole Event Horizon Telescope(EHT) provides a very good opportunity to study the theory of gravity. In this wo…
Quasinormal modes of Kerr-like black bounce spacetime
Yi Yang, Dong Liu, Ali Övgün +2
We investigate the quasinormal mode (QNM) spectrum of a Kerr-like black-bounce spacetime under massive scalar-field perturbations. Starting from the Kerr-like deformation of the Si…
Gravitational ringing and superradiant instabilities of the Kerr-like black holes in a dark matter halo
Dong Liu, Yi Yang, Ali Övgün +2
Supermassive black holes from the center of galaxy may be immersed in a dark matter halo. This dark matter halo may form a "cusp" structure around the black hole and disappear at a…
The ringing of quantum corrected Schwarzschild black hole with GUP
Yujia Xing, Yi Yang, Dong Liu +2
Schwarzschild black holes with quantum corrections are studied under scalar field perturbations and electromagnetic field perturbations to analyze the effect of the correction term…
Probing hairy black holes caused by gravitational decoupling using quasinormal modes and greybody bounds
Yi Yang, Dong Liu, Ali Övgün +2
Gravitational decoupling can add hair to the black holes by adding extra sources. The quasinormal modes of hairy black hole caused by gravitational decoupling for the massless scal…
Effect of quantum deformed black hole on BH shadow in two-dimensional Dilaton gravity
Zhaoyi Xu, Meirong Tang
In recent years, the study of quantum effects near the event horizon of black hole (BH) has attracted extensive attention. It has become one of the important methods to explore BH…
Rotating spacetime: black-bounces and quantum deformed black hole
Zhaoyi Xu, Meirong Tang
Recently, two kinds of deformed schwarzschild spacetime have been proposed, which are the black-bounces metric (\cite{2019JCAP...02..042S,2021PhRvD.103h4052L}) and quantum deformed…
Echoes of novel black-bounce spacetimes
Yi Yang, Dong Liu, Zhaoyi Xu +3
Gravitational wave echoes can be used as a significant observable to understand the properties of black holes horizon. In addition, echoes would also closely relate to the unique p…
Deformed black hole immersed in dark matter spike
Zhaoyi Xu, Jiancheng Wang
If a lot of dark matter particles accumulate near the black hole, then the chances of detecting dark matter signals near a black hole are greatly increased. These effects may be ob…
Ringing of a black hole in a dark matter halo
Dong Liu, Yi Yang, Shurui Wu +3
Recently, we obtained the simple metrics of a spherically symmetric black hole in a dark matter halo, and extended to the case of rotation. As the characteristic sound of black hol…
The Possible Equation Of State Of Dark Matter in Low Surface Brightness Galaxies
Xiaobo Gong, Meirong Tang, Zhaoyi Xu
The observed rotation curves of low surface brightness (LSB) galaxies play an essential role in studying dark matter, and indicate that there exists a central constant density dark…
Constraining the Rastall parameters in static spacetimes with galaxy-scale strong gravitational lensing
Rui Li, Jiancheng Wang, Zhaoyi Xu +1
Recently, Rastall gravity is undergoing a significant surge in popularity. We obtain a power-law total mass-density profile for the inner region (within several effective radius) o…
Observational Constraints on the Rastall gravity from Rotation Curves of Low Surface Brightness Galaxies
Meirong Tang, Zhaoyi Xu, Jiancheng Wang
The Rastall gravity is a modification of Einstein's general relativity, in which the energy-momentum conservation is not satisfied and depends on the gradient of the Ricci curvatur…
Rotating Black Hole Shadow in Perfect Fluid Dark Matter
Xian Hou, Zhaoyi Xu, Jiancheng Wang
We study analytically the shadow cast by the rotating black hole in the perfect fluid dark matter. The apparent shape of the shadow depends upon the black hole spin and the per…
Possibility of Identifying Matter around Rotating Black Hole with Black Hole Shadow
Zhaoyi Xu, Xian Hou, Jiancheng Wang
Shadows cast by the rotating black hole in perfect fluid matter are studied using analytical method. We consider three kinds of matter with standard equation of state in Cosmology:…
A scenario on the power-law total mass-density profile of the inner regions of early-type-galaxies
Rui Li, Zhaoyi Xu, Jiancheng Wang +1
We naturally obtain a power-law total mass-density profile for the inner regions (within several effective radius) of early-type galaxies(ETGs) from space-time structures, which ar…
Black Hole Space-time In Dark Matter Halo
Zhaoyi Xu, Xian Hou, Xiaobo Gong +1
For the first time, we obtain the analytical form of black hole space-time metric in dark matter halo for the stationary situation. Using the relation between the rotation velocity…