415 citations · 3.1k across the 94 of their papers we have counts for
53 papers · 1 filter
Scalarized Kerr-Newman Black Holes
Guangzhou Guo, Peng Wang, Houwen Wu +1
In this paper, we construct scalarized rotating black holes within the framework of Einstein-Maxwell-scalar models. These models incorporate non-minimal couplings that can induce t…
Gravitational Lensing by Born-Infeld Naked Singularities
Yiqian Chen, Peng Wang, Houwen Wu +1
We examine the gravitational lensing phenomenon caused by photon spheres in the Born-Infeld naked singularity spacetime, where gravity is coupled with Born-Infeld electrodynamics.…
Superradiance Instabilities of Charged Black Holes in Einstein-Maxwell-scalar Theory
Guangzhou Guo, Peng Wang, Houwen Wu +1
We study time evolutions of charged scalar perturbations on the background of a charged hairy black hole, in which the perturbations can be governed by a double-peak effective pote…
Black Holes with Multiple Photon Spheres
Guangzhou Guo, Yuhang Lu, Peng Wang +2
Recently, asymptotically-flat black holes with multiple photon spheres have been discovered and found to produce distinctive observational signatures. In this paper, we focus on wh…
Observational Appearance of a Freely-falling Star in an Asymmetric Thin-shell Wormhole
Yiqian Chen, Peng Wang, Houwen Wu +1
It has been recently reported that, at late times, the total luminosity of a star freely falling in black holes decays exponentially with time, and one or two series of flashes wit…
Appearance of an Infalling Star in Black Holes with Multiple Photon Spheres
Yiqian Chen, Guangzhou Guo, Peng Wang +2
Photon spheres play a pivotal role in the imaging of luminous objects near black holes. In this paper, we examine observational appearances of a star freely falling in hairy black…