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arXiv 1111.6929astro-ph.SR
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两颗太阳质量致密星:结构、组成和冷却

Two solar-mass compact stars: structure, composition, and cooling

Armen Sedrakian

摘要:

本文讨论了在色超导态中含有超核和退禁闭夸克物质的大质量(两个太阳质量)中子星的结构和组成。如果强子物质的状态方程在饱和密度以上是刚性的,在几倍于核饱和密度的情况下发生向夸克物质的跃迁,并且夸克物质中的排斥矢量相互作用是实质性的,则可以获得具有这种物质特征的稳定构型。我还讨论了我们最近的进展,了解冷却的大质量致密星的彩色超导夸克核。

英文摘要:

I discuss the structure and composition of massive (two solar-mass) neutron stars containing hypernuclear and deconfined quark matter in color superconducting states. Stable configurations featuring such matter are obtained if the equation of state of hadronic matter is stiff above the saturation density, the transition to quark matter takes place at a few times the nuclear saturation density, and the repulsive vector interactions in quark matter are substantial. I also discuss our recent progress in understanding the cooling of massive compact stars with color superconducting quark cores.

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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