1 citations · 2 across the 7 of their papers we have counts for
7 papers
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.…