Compact stars with color superconducting quark matter

Details Compact stars with color superconducting quark matter Compact stars with color superconducting quark matter

2002-11-14

arxiv.org/abs/nucl-th/0211046v2

Phys.Rev. D67 (2003) 074024

Physics

Nuclear Physics

Nuclear Theory

22 pages, LaTeX; minor corrections and clarifications

Scientific paper

10.1103/PhysRevD.67.074024

We study compact stars that contain quark matter. We look at the effect of color superconductivity in the quark matter on the nuclear-quark matter transition density, mass-radius relationship, and the density discontinuity at the boundary between nuclear and quark matter. We find that color superconducting quark matter will occur in compact stars at values of the bag constant where ordinary quark matter would not be allowed. We are able to construct ``hybrid'' stars with a color superconducting quark matter interior and nuclear matter surface, with masses in the range 1.3-1.6 M_solar and radii 8-11 km. Our results are consistent with recent mass-radius limits based on absorption lines from EXO0748-676.

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