16 citations · 20 across the 14 of their papers we have counts for
14 papers
Optical Appearance of Scalarized Kerr-Newman Black Holes with Multiple Light Rings
Yiqian Chen, Li Li, Peng Wang
This study investigates the optical appearance of rotating scalarized Kerr-Newman black holes in the Einstein-Maxwell-scalar theory with exponential coupling. By analyzing equatori…
Schwarzschild Black Holes Immersed in Born-Infeld Magnetic Fields and Their Observational Signatures
Yiqian Chen, Guangzhou Guo, Benrong Mu +1
We investigate the influence of Born-Infeld (BI) nonlinear electrodynamics on magnetic field configurations, photon orbits, and black hole shadows for Schwarzschild black holes imm…
Polarized Image of a Synchrotron-emitting Ring in Einstein-Maxwell-scalar Theory
Yiqian Chen, Lang Cheng, Peng Wang +1
This study investigates polarized images of an equatorial synchrotron-emitting ring surrounding hairy black holes within the Einstein-Maxwell-scalar theory. Our analysis demonstrat…
Observational Signatures of Traversable Wormholes
Yiqian Chen, Lang Cheng, Peng Wang +1
In this paper, we study the observational signatures of traversable Simpson-Visser wormholes illuminated by luminous celestial spheres and orbiting hot spots. We demonstrate that w…
Distinguishing the Observational Signatures of Hot Spots Orbiting Reissner-Nordström Spacetime
Tianshu Wu, Yiqian Chen
This paper delves into observable signatures of hot spots orbiting Reissner-Nordström (RN) black holes and naked singularities. In a RN black hole case, we find two discernible len…
Observations of Orbiting Hot Spots around Scalarized Reissner-Nordström Black Holes
Yiqian Chen, Peng Wang, Haitang Yang
This paper investigates the observational signatures of hot spots orbiting scalarized Reissner-Nordström black holes, which have been reported to possess multiple photon spheres. I…
Interferometric Signatures of Black Holes with Multiple Photon Spheres
Yiqian Chen, Peng Wang, Haitang Yang
It has been reported that the photon ring structure in black hole images produces strong and universal interferometric signatures on long interferometric baselines, holding promise…
Observations of Orbiting Hot Spots around Naked Singularities
Yiqian Chen, Peng Wang, Haitang Yang
Recently, it has been reported that photons can traverse naked singularities in the Janis-Newman-Winicour and Born-Infeld spacetimes when these singularities are appropriately regu…
Gravitational Lensing by Transparent Janis-Newman-Winicour Naked Singularities
Deyou Chen, Yiqian Chen, Peng Wang +2
The Janis-Newman-Winicour (JNW) spacetime can describe a naked singularity with a photon sphere that smoothly transforms into a Schwarzschild black hole. Our analysis reveals that…
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.…
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…
Holographic Superconductors in a Non-minimally Coupled Einstein-Maxwell-scalar Model
Yiqian Chen, Xiaobo Guo, Peng Wang
In this paper, we investigate holographic superconductors dual to asymptotically anti-de Sitter black holes in an Einstein-Maxwell-scalar model with a non-minimal coupling between…
Strong Cosmic Censorship for a Scalar Field in a Logarithmic-de Sitter Black Hole
Yiqian Chen, Qingyu Gan, Guangzhou Guo
It has been shown that the quasinormal modes of perturebated fields can be used to investigate the validity of strong cosmic censorship (SCC). Relevant issues for Reissner-Nordstro…