Braneworld gravastars admitting conformal motion
Ayan BanerjeeDepartment of Mathematics, Jadavpur University, Kolkata, 700 032, West Bengal, IndiaFarook RahamanDepartment of Mathematics, Jadavpur University, Kolkata, 700 032, West Bengal, IndiaSayeedul IslamDepartment of Mathematics, Jadavpur University, Kolkata, 700 032, West Bengal, IndiaMegan GovenderDepartment of Mathematics, Faculty of Applied Sciences, Durban University of Technology, Durban, 4000, South Africa
2016en
ABI
Abstract
In this paper, we propose the braneworld gravastar configuration which is an alternative to the braneworld black hole. We study the Mazur and Mottola gravastar model within the context of the Randall–Sundrum type II braneworld scenario, based on the fact that our four dimensional spacetime is a three-brane, embedded in a five dimensional bulk. We present exact solutions of the modified field equations in each of the three regions making up the gravastar, namely, (I) the core, (II) the shell, and (III) the vacuum exterior. The junction conditions at each interface are fulfilled and we further explore interesting physical properties such as length, energy and entropy of the spherical distribution.
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Cited by 30 references