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arXiv · 2310.01222

Future-null singularity due to gravitational collapse

Ashok B. Joshi·Karim Mosani·Pankaj S. Joshi
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Abstract

In the case of unhindered gravitational collapse of matter cloud governed by the Lemaitre-Tolman-Bondi (LTB) spacetime, the end-state singularity is either locally visible, globally visible or completely hidden. We have a past-null singularity in the first two cases while a future-spacelike singularity in the last case. Here, we show an example of a gravitational collapse model whose end-state is a future-null-singularity (it has a causal property that is unlike the cases involving LTB spacetime). We depict such a distinct causal structure of the singularity by conformal diagrams.

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Ashok B. Joshi, Karim Mosani, Pankaj S. Joshi. 2023-10-02. Future-null singularity due to gravitational collapse. https://arxiv.org/abs/2310.01222

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