53 citations · 90 across the 10 of their papers we have counts for
10 papers
Shadow of a circular disformal Kerr black hole beyond GR
Fen Long, Songbai Chen, Jiliang Jing
We have studied the shadows of a circular disformal Kerr black hole with a deformation parameter, which represents a rotating solution within a generalized scalar-tensor framework…
The images of Brans-Dicke-Kerr type naked singularities
Fen Long, Weike Deng, Xin Qin +2
We have studied the images of the Brans-Dicke-Kerr spacetime with a dimensionless Brans-Dicke parameter , which belongs to axisymmetric rotating solutions in the Brans-Dicke the…
Polarized image of an equatorial emitting ring around a Konoplya-Zhidenko rotating non-Kerr black hole
Xin Qin, Fen Long, Songbai Chen +1
We investigate the polarized images of an equatorial emitting ring around a Konoplya-Zhidenko rotating non-Kerr black hole, which introduces an additional deformation parameter. Th…
Quasinormal Modes of a Massive Scalar Field in Slowly Rotating Einstein-Bumblebee Black Holes
Weike Deng, Wentao Liu, Fen Long +2
In this study, we examine the impacts of black hole spin, Lorentz-violating parameter, and the scalar field's mass on quasinormal modes (QNMs) of rotating Einstein-Bumblebee black…
Magnetic reconnection and energy extraction from a Konoplya Zhidenko rotating non Kerr black hole
Fen Long, Shangyun Wang, Songbai Chen +1
Recently, magnetic reconnection has attracted considerable attention as a novel energy extraction mechanism, relying on the rapid reconnection of magnetic field lines within the er…
Machine learning phase transitions of the three-dimensional Ising universality class
Xiaobing Li, Ranran Guo, Yu Zhou +5
Exploration of the QCD phase diagram and critical point is one of the main goals in current relativistic heavy-ion collisions. The QCD critical point is expected to belong to a thr…
Shadow of a disformal Kerr black hole in quadratic DHOST theories
Fen Long, Songbai Chen, Mingzhi Wang +1
We have studied the shadow of a disformal Kerr black hole with an extra deformation parameter, which belongs to non-stealth rotating solutions in quadratic Degenerate Higher Order…
Shadow of a rotating squashed Kaluza-Klein black hole
Fen Long, Jieci Wang, Songbai Chen +1
We study the shadow of a rotating squashed Kaluza-Klein (KK) black hole and the shadow is found to possess distinct properties from those of usual rotating black holes. It is shown…
Electromagnetic emissions from near-horizon region of an extreme Kerr-Taub-Nut black hole
Fen Long, Songbai Chen, Jieci Wang +1
We have studied electromagnetic line emissions from near-horizon region in the extremal Kerr-Taub-NUT black hole spacetime and then probe the effects of NUT charge on the electroma…
Energy extraction from a Konoplya-Zhidenko rotating non-Kerr black hole
Fen Long, Songbai Chen, Shangyun Wang +1
We have investigated the properties of the ergosphere and the energy extraction by Penrose process in a Konoplya-Zhidenko rotating non-Kerr black hole spacetime. We find that the e…