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arXiv 2206.04433nucl-thastro-ph.HE
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磁化稠密丰中子物质的热力学

Thermodynamics of magnetized dense neutron-rich matter

J. P. W. Diener

摘要:

中子星是大质量恒星可能的终态之一。它被重力压缩,并被核简并压力稳定。尽管它的名字,这些物体的组成并不确切。然而,从推断的密度来看,中子很可能构成恒星内部的重要部分。虽然所有的中子星都有磁场,但有些中子星(磁星)的磁化强度比其他中子星高得多,推断磁星表面磁场在$10^{14}$到$10^{15}$高斯之间。虽然中子星是宏观物体,但由于恒星的能量,压力和磁场的极端值,微观尺度上的热力学可以印在恒星的大尺度行为上。这一贡献的重点是描述磁化致密中子物质的热力学,其状态方程,并探讨可能的铁磁状态的条件,磁化真空的贡献,以及可能的观测影响。

英文摘要:

A neutron star is one of the possible end states of a massive star. It is compressed by gravity and stabilized by the nuclear degeneracy pressure. Despite its name, the composition of these objects is not exactly known. However, from the inferred densities, neutrons will most likely compose a significant fraction of the star's interior. While all neutron stars are expected to have a magnetic field, some neutron stars (''magnetars'') are much more highly magnetized than others with inferred magnetar surface magnetic field is between $10^{14}$ to $10^{15}$ gauss. While neutron stars are macroscopic objects, due to the extreme value of the stars' energy, pressure, and magnetic field the thermodynamics on the microscopic scale can be imprinted on the star's large scale behaviour. This contribution focusses on describing the thermodynamics of magnetized dense neutron matter, its equation of state and to explore conditions of a possible ferromagnetic state, contributions from the magnetized vacuum, as well as possible observational implications.

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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