Gravastar in the framework of Loop Quantum Cosmology

被引:0
|
作者
Ghosh, Shounak [2 ]
Sengupta, Rikpratik [1 ]
Kalam, Mehedi [1 ]
机构
[1] Aliah Univ, Dept Phys, Kolkata 700160, West Bengal, India
[2] Govt West Bengal, Dept Consumer Affairs, Directorate Legal Metrol, Jalpaiguri 735221, West Bengal, India
来源
EUROPEAN PHYSICAL JOURNAL PLUS | 2024年 / 139卷 / 06期
关键词
GRAVITATIONAL COLLAPSE; PHASE-TRANSITIONS; STABLE GRAVASTARS; EQUATION; SUPERNOVAE;
D O I
10.1140/epjp/s13360-024-05264-2
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In this paper we attempt to construct a regular gravastar model using the UV corrected framework of Loop Quantum Cosmology. We find that a stable gravastar model can be constructed with a number of unique features: (i) no thin shell approximation needs to be invoked to obtain solutions in the shell which can be considered to be of a finite thickness, (ii) the central singularity of a self-gravitating object can be averted by a bounce mechanism, such that the interior density of the gravastar reaches a maximum critical density and cannot be raised further due to an operative repulsive force, (iii) the inherent isotropy of the effective fluid description does not prevent the formation of a stable gravastar, and anisotropic pressures is not an essential requirement.
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页数:16
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