当前位置: X-MOL 学术Adv. Astron. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Model of Charged Anisotropic Strange Stars in Minimally Coupled Gravity
Advances in Astronomy ( IF 1.6 ) Pub Date : 2021-01-04 , DOI: 10.1155/2021/6698208
H. Nazar 1 , G. Abbas 1
Affiliation  

In the present article, we have investigated a new family of nonsingular solutions of static relativistic compact sphere which incorporates the characteristics of anisotropic fluid and electromagnetic field in the context of minimally coupled theory of gravity. The strange matter bag model equation of state (EoS) has been considered along with the usual forms of the Karori–Barua metric potentials. For this purpose, we derived the Einstein–Maxwell field equations in the assistance of strange matter EoS and type ansatz by employing the two viable and cosmologically well-consistent models of and . Thereafter, we have checked the physical acceptability of the proposed results such as pressure, energy density, energy conditions, equation, stability conditions, mass function, compactness, and surface redshift by using graphical representation. Moreover, we have investigated that the energy density and radial pressure are nonsingular at the core or free from central singularity and always regular at every interior point of the compact sphere. The numerical values of such parameters along with the surface density, charge to radius ratio, and bag constant are computed for three well-known compact stars such as (, , and and are presented in Tables 1–6. Conclusively, we have noticed that our presented charged compact stellar object in the background of two well-known models obeys all the necessary conditions for the stable equilibrium position and which is also perfectly fit to compose the strange quark star object.

中文翻译:

最小耦合引力的带电各向异性奇异星模型

在本文中,我们研究了静态相对论紧致球体的非奇异解的新族,该族在最小耦合重力理论的背景下融合了各向异性流体和电磁场的特征。人们已经考虑了奇怪的物质袋模型状态方程(EoS)和Karori–Barua度量势的通常形式。为此,我们采用两个可行且宇宙学上一致的模型,借助奇异物质EoS和类型ansatz推导了爱因斯坦-麦克斯韦场方程。此后,我们通过图形表示检查了所提出结果的物理可接受性,例如压力,能量密度,能量条件,方程,稳定性条件,质量函数,紧密度和表面红移。此外,我们已经研究了能量密度和径向压力在核心处是非奇异的或没有中心奇异性,并且在紧凑球体的每个内部点处始终是规则的。这些参数的数值以及表面密度,电荷半径比和布袋常数是针对三个众所周知的紧凑恒星计算的,例如( 并列于表1-6。最终,我们注意到,在两个著名模型的背景下,我们提出的带电紧凑型恒星物体遵守了稳定平衡位置的所有必要条件,并且也非常适合组成奇怪的夸克星物体。
更新日期:2021-01-04
down
wechat
bug