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arXiv · 1403.2069

Spherical gravitational collapse in 5D Einstein-Gauss-Bonnet gravity

Sushant G. Ghosh·Sanjay Jhingan·D. W. Deshkar
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Abstract

We consider a spherical gravitational collapse of inhomogeneous dust (and null dust) in Einstein gravity with the Gauss-Bonnet (GB) combination of quadratic curvature terms. It turns out that the presence of the coupling constant of the GB terms $\alpha > 0$ completely changes the causal structure of the singularities from the analogous general relativistic case. The gravitational collapse of inhomogeneous dust in the five-dimensional GB extended Einstein equations leads to formation of a massive, but weak, timelike singularity which is forbidden in general relativity. The apparent horizons of two different collapsing solutions show interesting mathematical similarity.

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Sushant G. Ghosh, Sanjay Jhingan, D. W. Deshkar. 2014-03-09. Spherical gravitational collapse in 5D Einstein-Gauss-Bonnet gravity. https://doi.org/10.1088/1742-6596/484/1/012013

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