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arXiv · 2408.03016

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·Dong-han Yeom
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Abstract

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 scalar field. Here, we investigate the possible formation of a naked singularity in the JNW spacetime, using the thin-shell approximation to describe the gravitational collapse. By introducing different matter contents to construct thin-shells, we demonstrate the impossibility of naked singularity formation during the gravitational collapse unless the causality or null energy condition of the thin-shell is violated. Therefore, the weak cosmic censorship is satisfied even with the naked singularity of the JNW spacetime.

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Xiao Yan Chew, Il Gyeong Choi, Hyuk Jung Kim, Dong-han Yeom. 2024-08-06. Can a naked singularity be formed during the gravitational collapse of a Janis-Newman-Winicour solution?. https://arxiv.org/abs/2408.03016

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