Quintessence anisotropic stellar models in quadratic and Born-Infeld modified teleparallel Rastall gravity
Allah Ditta1, Tiecheng Xia(夏铁成)1,†, Irfan Mahmood2, and Asif Mahmood3,‡
1 Department of Mathematics, Shanghai University and Newtouch Center for Mathematics of Shanghai University, Shanghai 200444, China; 2 Centre for High Energy Physics, University of the Punjab, Lahore, Pakistan; 3 College of Engineering, Chemical Engineering Department, King Saud University Riyadh, Saudi Arabia
Abstract This study aims to discuss anisotropic solutions that are spherically symmetric in the quintessence field, which describe compact stellar objects in the modified Rastall teleparallel theory of gravity. To achieve this goal, the Krori and Barua arrangement for spherically symmetric components of the line element is incorporated. We explore the field equations by selecting appropriate off-diagonal tetrad fields. Born-Infeld function of torsion f(T)=β√λT+1-1 and power law form h(T)=δTn are used. The Born-Infeld gravity was the first modified teleparallel gravity to discuss inflation. We use the linear equation of state pr=ξρ to separate the quintessence density. After obtaining the field equations, we investigate different physical parameters that demonstrate the stability and physical acceptability of the stellar models. We use observational data, such as the mass and radius of the compact star candidates PSRJ 1416-2230, Cen X-3, & 4U 1820-30, to ensure the physical plausibility of our findings.
Received: 02 August 2023
Revised: 31 August 2023
Accepted manuscript online: 19 September 2023
PACS:
02.30.Jr
(Partial differential equations)
Fund: Allah Ditta and Xia Tiecheng acknowledge this paper to be funded by the National Natural Science Foundation of China (Grant No. 11975145). Asif Mahmood would like to acknowledge Researchers Supporting Project Number (RSP2024R43), King Saud University, Riyadh, Saudi Arabia.
Allah Ditta, Tiecheng Xia(夏铁成), Irfan Mahmood, and Asif Mahmood Quintessence anisotropic stellar models in quadratic and Born-Infeld modified teleparallel Rastall gravity 2024 Chin. Phys. B 33 030204
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