Beginning from the proposal of a physically acceptable model to represent the interior of compact stars, in which their interior is formed by a strange matter distribution described by a charged fluid with anisotropic pressure, a MIT Bag equation of state for the radial pressure Pr=13(c2ρ−4Bg) and metric functions given by a geometry that describes a regular, static and spherically symmetric space-time, we will determine the possible charge of some strange stars, or candidates, for which we know their radius and mass in an observational manner. As are: EXO 1785-248, SAX J1808.4-3658, SMC X-1, LMC X-4, Her X-1 and 4U 1538-52. The values of the Bag constant, B _g , are found between 119.8 Mev/fm³ and 176.41 Mev/fm³. Meanwhile the interval of the electric charge is found between 1.5453 × 10¹⁸ C and 7.6271 × 10¹⁹ C, the minimum corresponds to the star Her X-1 and the maximum to the star SMCX-1. Also, we show that for each fixed value of compactness u = GM/c ² R, we obtain that, for greater values of the Bag constant the net charge diminishes and as the compactness increases the associated Bag constant increases as well.

中文翻译：

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奇异星电荷的测定

从提出一个物理上可接受的模型来表示致密星的内部开始，在这些模型中，它们的内部是由一种奇怪的物质分布形成的，这种物质分布由具有各向异性压力的带电流体描述，径向压力的 MIT Bag 状态方程 Pr=1个3个(C2个ρ−4个乙G) 和由描述规则、静态和球对称时空的几何给出的度量函数，我们将确定一些奇怪的恒星或候选者的可能电荷，我们通过观察的方式知道它们的半径和质量。同样是：EXO 1785-248、SAX J1808.4-3658、SMC X-1、LMC X-4、Her X-1 和 4U 1538-52。Bag 常量的值，乙 _G , 位于 119.8 Mev/fm ³和 176.41 Mev/fm ³之间。^{同时在1.5453 × 10 18}  C 和7.6271 × 10 ¹⁹ C之间发现电荷区间 ，最小值对应于恒星Her X-1，最大值对应于恒星SMCX-1。此外，我们表明对于每个固定的紧凑性值你=通用汽车/C ^2个 R，我们得到，对于更大的 Bag 常数值，净电荷减少，并且随着紧凑性增加，相关的 Bag 常数也会增加。