Eur. Phys. J. C (2016) 76: 34
https://doi.org/10.1140/epjc/s10052-016-3887-1

Regular Article - Theoretical Physics

Braneworld gravastars admitting conformal motion

¹ Department of Mathematics, Jadavpur University, Kolkata, 700 032, West Bengal, India
² Department of Mathematics, Faculty of Applied Sciences, Durban University of Technology, Durban, 4000, South Africa

^* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Received: 17 October 2015
Accepted: 7 January 2016
Published online: 22 January 2016

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.