Can a naked singularity be formed during the gravitational collapse of a Janis-Newman-Winicour solution?
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866910557635870720 |
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| author | Chew, Xiao Yan Choi, Il Gyeong Kim, Hyuk Jung Yeom, Dong-han |
| author_facet | Chew, Xiao Yan Choi, Il Gyeong Kim, Hyuk Jung Yeom, Dong-han |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_03016 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Can a naked singularity be formed during the gravitational collapse of a Janis-Newman-Winicour solution? Chew, Xiao Yan Choi, Il Gyeong Kim, Hyuk Jung Yeom, Dong-han General Relativity and Quantum Cosmology High Energy Physics - Theory 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. |
| title | Can a naked singularity be formed during the gravitational collapse of a Janis-Newman-Winicour solution? |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2408.03016 |