Braneworld gravitational collapse from a radiative bulk

Details Braneworld gravitational collapse from a radiative bulk Braneworld gravitational collapse from a radiative bulk

2006-09-18

arxiv.org/abs/gr-qc/0609065v3

Phys.Rev. D74 (2006) 124019

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages. Revised version. References added. Accepted for publication in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.74.124019

We study the fate of a collapsing star on the brane in a generalized braneworld gravity with bulk matter. Specifically, we investigate for the possibility of having a static exterior for a collapsing star in the radiative bulk scenario. Here, the nonlocal correction due to bulk matter is manifest in an induced mass that adds up to the physical mass of the star resulting in an effective mass. A Schwarzschild solution for the exterior in terms of this effective mass is obtained, which reveals that even if the star exchanges energy with the bulk, the exterior may appear to be static to a braneworld observer located outside the collapsing region. The possible explanation of the situation from the discussion on the role of bulk matter is provided. The nature of bulk matter and the corresponding bulk geometry have also been obtained and analyzed, which gives a complete picture of both brane and bulk viewpoints.

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