4.5 Article

A study of anisotropic spheres in modified gravity via embedding approach

期刊

ANNALS OF PHYSICS
卷 422, 期 -, 页码 -

出版社

ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.aop.2020.168322

关键词

Stellar structures; Karmarkar condition; Modified gravity

资金

  1. National Natural Science Foundation of China [11971241]

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The motivation of this paper is based on the foundation of ex-tended teleparallel gravity with matter coupling to prospect the accelerated expansion of the Universe. This theory based on the torsion scalar along with the trace term of energy stress tensor. We manipulate the spherical symmetric metric and anisotropic fluid to discuss the study of stellar structures. To interpret our research, we used the observational data of three stars. We adopt the process of parallelism of interior and exterior space times to estimate the unspecified parameters used in the stellar discussion. Further, we discuss the stellar properties like energy density, progressive behavior of radial and tangential components of pressure, the anisotropic formation of the compact stars. We also analyze the physical presence of stars by discussing the energy conditions redshift and mass functions. We signify the stability of the system by examining the speed of sounds and EoS. We show the equilibrium of the system by analyzing the TOV equation. Finally, we show that our system in the discussion is physically stable and analytically viable. (C) 2020 Elsevier Inc. All rights reserved.

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