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Anisotropic strange star inspired by Finsler geometry.

Authors :
Chowdhury, Sourav Roy
Deb, Debabrata
Rahaman, Farook
Ray, Saibal
Guha, B. K.
Source :
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology. Jan2020, Vol. 29 Issue 1, pN.PAG-N.PAG. 22p.
Publication Year :
2020

Abstract

In this paper, we report on a study of the anisotropic strange stars under Finsler geometry. Keeping in mind that Finsler spacetime is not merely a generalization of Riemannian geometry rather the main idea is the projectivized tangent bundle of the manifold 𝕄 , we have developed the respective field equations. Thereafter, we consider the strange quark distribution inside the stellar system followed by the MIT bag model equation-of-state (EoS). To find out the stability and also the physical acceptability of the stellar configuration, we perform in detail some basic physical tests of the proposed model. The results of the testing show that the system is consistent with the Tolman–Oppenheimer–Volkoff (TOV) equation, Herrera cracking concept, different energy conditions and adiabatic index. One important result that we observe is, the anisotropic stress reaches the maximum at the surface of the stellar configuration. We calculate (i) the maximum mass as well as the corresponding radius, (ii) the central density of the strange stars for finite values of bag constant B g and (iii) the fractional binding energy of the system. This study shows that Finsler geometry is especially suitable to explain massive stellar systems. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
02182718
Volume :
29
Issue :
1
Database :
Academic Search Index
Journal :
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology
Publication Type :
Academic Journal
Accession number :
141943252
Full Text :
https://doi.org/10.1142/S0218271820500017