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

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

2011-11-29

arxiv.org/abs/1111.6929v2

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

10 pages, 3 figures. v2: minor corrections. Lecture presented at "Three Days on Quarkyonic Island", HIC for FAIR workshop and

Scientific paper

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.

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