Gravastars in (3+1) dimensions admitting Karmarkar condition

Journal Article · Sun Dec 15 04:00:00 EST 2019 · Annals of Physics

DOI:https://doi.org/10.1016/J.AOP.2019.167968· OSTI ID:22852355

Ghosh, Shounak; Biswas, Suparna ^[1]; Rahaman, Farook ^[2]; Ray, Saibal ^[3]

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1. Department of Physics, Indian Institute of Engineering Science and Technology, Shibpur, Howrah, West Bengal, 711103 (India)
2. Department of Mathematics, Jadavpur University, Kolkata 700032, West Bengal (India)
3. Department of Physics, Government College of Engineering and Ceramic Technology, Kolkata 700010, West Bengal (India)

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.

• OSTI ID: 22852355
• Journal Information: Annals of Physics, Journal Name: Annals of Physics Vol. 411; ISSN 0003-4916; ISSN APNYA6
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
79 ASTRONOMY AND ASTROPHYSICS
APPROXIMATIONS
BLACK HOLES
BOSE-EINSTEIN CONDENSATION
EXACT SOLUTIONS
GENERAL RELATIVITY THEORY
PHASE TRANSFORMATIONS
RED SHIFT
SINGULARITY
TEMPERATURE RANGE 0065-0273 K