Anisotropic strange quintessence stars in modified f(R,φ) theory of gravity

被引:0
|
作者
Malik, Adnan [1 ,2 ]
Naz, Tayyaba [3 ]
Tariq, Ayesha [2 ]
Yousaf, Z. [4 ]
Alkhaldi, Ali H. [5 ]
Shahzad, M. Umair [6 ]
机构
[1] Zhejiang Normal Univ, Sch Math Sci, Jinhua, Zhejiang, Peoples R China
[2] Univ Management & Technol, Dept Math, Sialkot Campus, Lahore, Pakistan
[3] Natl Univ Comp & Emerging Sci, Lahore Campus, Lahore, Pakistan
[4] Univ Punjab, Dept Math, Quaid i Azam Campus, Lahore 54590, Pakistan
[5] Kind Khalid Univ, Dept Math, Abha, Saudi Arabia
[6] Univ Okara, Fac Sci, Dept Math, Okara 56130, Pakistan
关键词
Compact stars; metric potentials; f(R; phi) theory of gravity; Krori-Barua metric; F R; ENERGY; EQUIVALENT; MODELS; PHI;
D O I
10.1142/S0219887824400036
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
This paper investigated the anisotropic quintessence stars in the f(R,phi) theory of gravity, where R is the Ricci scalar and phi is the scalar potential. We investigated the field equations of the f(R,phi) theory of gravity by using the Krori-Barua technique. We have determined that all the obtained solutions are free from central singularity and potentially stable. The observed values of mass and radius of the different strange stars Her X1, SAXJ1808.4-3658, and 4U1820-30 have been used to calculate the values of unknown constants in the Krori and Barua metric. The physical phenomena of stars, such as energy density, pressure components, anisotropy, sound speeds, equation of state parameters, energy conditions and redshift have been investigated in detail.
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页数:24
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