论文标题
带有Tolman $ V $公制潜力的带电奇特的恒星模型在Einstein-Maxwell时空
Charged strange stellar model with Tolman $V$ metric potential in the Einstein-Maxwell space-time
论文作者
论文摘要
本文介绍了一个紧凑的恒星物体的存在，即奇怪的（夸克）星，这是爱因斯坦与Tolman $ v $公制潜力的相对论一般理论的框架，这是他提议中最简单的潜力形式之一。电位由$ e^ν= kr^{2n} $给出，其中$ k $是常数，$ n $是参数[r.c.托尔曼，物理。修订版{\ bf55}，364（1939）]。 Considering charged, static, spherically symmetric, isotropic fluid sphere we have studied different physical features of some strange star candidates namely $EXO\ 1785-248$, $LMC\ X-4$, $SMC\ X-1$, $SAX\ J1808.4-3658$, $4U\ 1538-52$ and $Her\ X-1$.为了代表奇怪的夸克物质（SQM）分布，我们采用了最简单的状态袋方程式（EOS），该形式通过袋子常数$ b $提供了压力和物质密度之间的线性关系。我们已经对稳定性标准和提出模型的身体可接受性进行了几项测试。结果表明，我们已经计算了模型的不同物理参数的能源条件，TOV方程，绝热指数等。袋装常数$ b $的三个连续值，即$ 83 \ mev/fm^3 $，$ 90 \ mev/fm^3 $^3 $和$ 100 \ mev/fm^3 $。其中包括$ b = 90 \ 90 \ mev/fm^3 $，我们分析了拟议中的奇怪候选者的不同属性。
This paper deals with the existence of a compact stellar object, precisely strange (quark) star, in the framework of Einstein's General Theory of Relativity with Tolman $V$ metric potential, which is one of the simplest forms of potential among his proposals. The potential is given by $e^ν=Kr^{2n}$, where $K$ is the constant and $n$ is a parameter [R.C. Tolman, Phys. Rev. {\bf55}, 364 (1939)]. Considering charged, static, spherically symmetric, isotropic fluid sphere we have studied different physical features of some strange star candidates namely $EXO\ 1785-248$, $LMC\ X-4$, $SMC\ X-1$, $SAX\ J1808.4-3658$, $4U\ 1538-52$ and $Her\ X-1$. To represent the strange quark matter (SQM) distribution we have employed the simplest form of MIT bag equation of state (EOS), which provides a linear relationship between pressure and density of the matter through Bag constant $B$. We have done several tests for the stability criteria and the physical acceptability of the proposed model. The results show consistency with energy condition, TOV equation, adiabatic index, etc. We have calculated different physical parameters of our model for the three different consecutive values of Bag constant $B$ which are $83\ MeV/fm^3$, $90\ MeV/fm^3$ and $100\ MeV/fm^3$. Among them with $B=90\ MeV/fm^3$ we have analyzed different properties of the proposed strange star candidates.
