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arXiv 1401.0835gr-qc
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低质量X射线双星4U 1820-30中奇异星的解析模型

Analytical model of strange star in the low-mass X-ray binary 4U 1820-30

Mehedi Kalam, Farook Rahaman, Sajahan Molla, Md. Abdul Kayum Jafry, Sk. Monowar Hossein

摘要:

在这篇文章中,我们提出了一个模型下托尔曼七度规\citep{Tolman1939}的现实奇怪的明星。在这里,场方程被简化为一个系统的三个代数方程的各向异性压力。根据我们的模型,对低质量X射线双星4U 1820-30中奇异星的质量、中心密度和面密度进行了拟合。奇怪的材料显然满足稳定性条件(即声速< 1)和TOV方程。这里也表面的红移的明星已被发现是在合理的限制。

英文摘要:

In this article, we have proposed a model for a realistic strange star under Tolman VII metric\citep{Tolman1939}. Here the field equations are reduced to a system of three algebraic equations for anisotropic pressure. Mass, central density and surface density of strange star in the low-mass X-ray binary 4U 1820-30 has been matched with the observational data according to our model. Strange materials clearly satisfies the stability condition (i.e. sound velocities < 1) and TOV-equation. Here also surface red shift of the star has been found to be within reasonable limit.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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