Core–envelope model of an anisotropic strange star with density-dependent bag (B) parameter

Das, B.; Goswami, Koushik Ballav; Chattopadhyay, P. K.; Sharma, Ranjan

doi:10.1007/s12648-023-02586-2

Cited by 4 publications

(1 citation statement)

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“…Boundary conditions are a valid and verifiable method to explore the values of different constants used in the context of multi-layered model [77][78][79]. Here, we have equated the interior and thin shell region at the boundary r = r 1 and evaluated the constant A and also obtained the dependence of A on charge q.…”

Section: Boundary Conditionmentioning

confidence: 99%

Stable charged gravastar model in cylindrically symmetric space-time

Chattopadhyay

2023

Phys. Scr.

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In this paper, we have extended the idea of gravitational Bose-Einstein condensate star (gravastar) to charged gravastar system and explored the role of charge in gravastar formation and its properties. We have used the most general line element in cylindrically symmetric space-time. In this approach, the existence of singularity at the center of gravastar is removed and the event horizon is replaced by the thin shell approximation. The proper length of the shell is calculated along with the energy of the thin shell in presence of charge. The entropy calculation shows that the entropy of the conﬁguration is smaller than that of a quasi-black hole system and even smaller than that of a classical black hole. Unlike black hole, the gravastar system is a stable conﬁguration and in our approach there is no information paradox.

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Section: Boundary Conditionmentioning

confidence: 99%