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DOE OSTI · 22852355

Gravastars in (3+1) dimensions admitting Karmarkar condition

Ghosh, Shounak·Biswas, Suparna·Rahaman, Farook·Ray, Saibal
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Abstract

Highlights: • Model of Gravastar in (3+1) dimensions is studied under GR. • Karmarkar condition of Embedding class 1 has been incorporated. • The class 1 condition provides an exact solution of three regions of gravastar. • Surface redshift confirms the stability of the model which is non-singular. - Abstract: The development of gravastar model by Mazur and Mottola (2004) is one of the most acceptable alternatives of conventional classical black hole. They have studied phase transition of the collapsing stellar objects at low temperature near event horizon which leads to the condensate phase, i.e. Bose–Einstein condensation. In the present study we have obtained a unique solution of this gravastar model under Einstein’s GR in (3+1) dimensions by incorporating the Karmarkar condition for embedding class 1. The most important motive of this work is to find an exact solution of the shell without taking the thin shell approximation. We have obtained singularity free finite solutions for the interior of the gravastar.

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71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS79 ASTRONOMY AND ASTROPHYSICSAPPROXIMATIONSBLACK HOLESBOSE-EINSTEIN CONDENSATIONEXACT SOLUTIONSGENERAL RELATIVITY THEORYPHASE TRANSFORMATIONSRED SHIFTSINGULARITYTEMPERATURE RANGE 0065-0273 K

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Ghosh, Shounak, Biswas, Suparna, Rahaman, Farook, Ray, Saibal. 2019-12-15. Gravastars in (3+1) dimensions admitting Karmarkar condition. https://doi.org/10.1016/j.aop.2019.167968

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