Regular Article - Theoretical Physics
Anisotropic stellar model of neutron stars in f(T) gravity with off-diagonal tetrad
Sardar Vallabhbhai National Institute of Technology, Surat, India
2 Institute of Space Sciences and Astronomy, University of Malta, Msida, Malta
3 Department of Physics, University of Malta, Msida, Malta
Accepted: 4 January 2022
Published online: 13 January 2022
In this paper, we develop a new class of analytical solutions describing anisotropic stellar structures of observed neutron stars using modified f(T) gravity. We use the off-diagonal tetrad that is best suitable for studying spherically symmetric objects in f(T) gravity. We develop exact solutions in the quadratic model of f(T) gravity by introducing physically reliable metric potentials that can describe a wide range of astrophysical systems. We then apply the model to investigate the stellar structures of four observed compact stars, 4U 1538-52, J0437-4715, J0030+0451, and 4U 1820-30. We calculate the values of model parameters for the stellar objects under examination in this paper. Comprehensive graphical analysis shows that the model describing anisotropic stellar structures is physically acceptable, causal, and stable. The model inherently exhibits the quadratic equation of state that can be utilized to investigate the material composition and stellar structures of the observed compact stars.
© The Author(s) 2022
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