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arXiv 2206.09486astro-ph.HEhep-ph
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中子星中费米子的状态方程

Equation of state of fermions in neutron stars

Samina Masood, Serkan Caliskan

摘要:

利用粒子数密度和能量密度,导出了考虑各种统计效应时中子星各微观区域的费米子状态方程。根据中子星的统计性质和相应的相位,计算了它作为温度(T)、化学势(μ)和磁场(B)的函数。揭示了描述中子星动力学行为的可测性质是由异常的统计条件决定的。结果表明,在强磁场中(B大于μ),压力(P)与B成对数关系(P与μ/B的对数成正比)。发现具有较高(较低)磁场(密度)的区域具有较短(较长)的寿命。此外,磁场和化学势之间的关系证实,在相同温度下,与低磁场和低密度相比,大磁场和高密度的寿命短。

英文摘要:

Employing both the number density and energy density, the equation of state of fermions for each microscopic region of a neutron star is derived in the presence of various statistical effects. It is computed as functions of temperature (T), chemical potential (μ) and magnetic field (B) based on the statistical properties and corresponding phases of neutron stars. It is revealed that the measurable properties describing the dynamic behavior of a neutron star are determined by the unusual statistical conditions. It is demonstrated that, in a strong magnetic field (B larger thanμ), the pressure (P) shows a logarithmic dependence on B (P is proportional to logarithm of(μ/B). It is found that the regions with a higher (lower) magnetic field (density) have a shorter (longer) life time. Moreover, the relationship between the magnetic field and chemical potential confirms that the large magnetic field and high density are short lived as compared to low magnetic field and low density at the same temperature.

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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