Charged stellar structures with Adler-Finch-Skea geometry in Ricci-inverse gravity

被引:0
|
作者
Hussain, Amjad [1 ]
Almas, Ayesha [2 ]
Shamir, M. Farasat [3 ]
Malik, Adnan [4 ,5 ]
Jamal, Sajjad Shaukat [6 ]
机构
[1] Chiniot Faisalabad Campus, Natl Univ Comp & Emerging Sci, Chiniot, Pakistan
[2] Univ Management & Technol, Dept Math, Sialkot Campus, Lahore, Pakistan
[3] Natl Univ Comp & Emerging Sci, Lahore Campus, Karachi, Pakistan
[4] Zhejiang Normal Univ, Sch Math Sci, Jinhua, Zhejiang, Peoples R China
[5] Univ Management & Technol, Dept Math, Sialkot Campus, Lahore, Pakistan
[6] King Khalid Univ, Coll Sci, Dept Math, Abha 61413, Saudi Arabia
关键词
Ricci-inverse gravity; compact stars; Finch-Skea geometry; Karmarkar condition; EQUATION-OF-STATE; DYNAMICAL INSTABILITY; QUARK MATTER; MODEL; CRACKING; STARS; STABILITY; F(R;
D O I
10.1088/1572-9494/ad9c3f
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We have developed a class of charged, anisotropic, and spherically symmetric solutions, described by the function f(R,A)=R+alpha A , where R represents the Ricci scalar, A is the anticurvature scalar, and alpha is the coupling constant. The model was constructed using the Karmarkar condition to obtain the radial metric component, while the time metric component followed the approach proposed by Adler. We assumed a specific charge distribution inside the star to build the model. To ensure a smooth spacetime transition, we established boundary conditions, considering Bardeen's solution for the exterior spacetime. Additionally, we examined various physical aspects, such as energy density, pressure components, pressure anisotropy, energy conditions, the equation of state, surface redshift, compactness factor, adiabatic index, sound speed, and the Tolman-Oppenheimer-Volkoff equilibrium condition. All these conditions were met, demonstrating that the solutions we obtained are physically viable.
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页数:20
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