تقرير
Gravastar in the framework of Loop Quantum Cosmology
| العنوان: | Gravastar in the framework of Loop Quantum Cosmology |
|---|---|
| المؤلفون: | Ghosh, Shounak, Sengupta, Rikpratik, Kalam, Mehedi |
| سنة النشر: | 2023 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology, Astrophysics - Astrophysics of Galaxies |
| الوصف: | 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. Comment: 15 pages, 11 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2311.00692 |
| رقم الأكسشن: | edsarx.2311.00692 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |