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gr-qc2024
Can a naked singularity be formed during the gravitational collapse of a Janis-Newman-Winicour solution?
Xiao Yan Chew, Il Gyeong Choi, Hyuk Jung Kim +1
The Janis-Newman-Winicour (JNW) spacetime possesses a naked singularity, although it represents an exact particle-like solution to the Einstein-Klein-Gordon theory with a massless…
physics.gen-ph2024
Gravitational Deflection of Light: A Heuristic Derivation at the Undergraduate Level
Hongbin Kim, Dong-han Yeom, Jong Hyun Kim
In this paper, we present a new heuristic derivation of the gravitational deflection of light around the Sun at the undergraduate level. Instead of solving the geodesic equation di…
gr-qc2024
Hairy Reissner-Nordstrom Black Holes with Asymmetric Vacua
Xiao Yan Chew, Dong-han Yeom
We minimally coupled a scalar potential with asymmetric vacua to the Einstein gravity to numerically construct the hairy Reissner-Nordstrom black hole (RNBH) as a direct gen…