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arXiv · 2408.01764

Relativistic model of anisotropic star with Bose-Einstein density depiction in $f(T)$ gravity

Samprity Das·Prabir Rudra·Surajit Chattopadhyay
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Abstract

This article presents a new model for anisotropic compact stars that are confined to physical dark matter in the background of $f(T)$ teleparallel gravity. The model is based on the equation of state (EoS) of the bag model type and the Bose-Einstein dark matter density profile. The derived solutions meet the energy conditions, the causality conditions, and the required conditions on the stability factor and adiabatic index, indicating that they are physically well-behaved and represent the physical and stable matter configuration. We also determine the maximum mass, surface redshift, and compactness parameter at the surface. Interestingly, all of these numbers fall within the specified range, supporting the physical viability of our proposal. Additionally, the various masses that are derived for varying the model parameter $k$ correspond to five compact, realistic compact objects, including LMC X-4, Her X-1, 4U 1538-52, SAX J1808.4-3658, and Cen X-3. We have also illustrated the radially symmetric profiles of energy density and the moment of inertia for non-rotating stars.

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Samprity Das, Prabir Rudra, Surajit Chattopadhyay. 2024-08-03. Relativistic model of anisotropic star with Bose-Einstein density depiction in $f(T)$ gravity. https://arxiv.org/abs/2408.01764

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