Cold quark stars from hot lattice QCD

Abstract

Based on a quasiparticle model for \beta stable and electrically neutral deconfined matter we address the mass-radius relation of pure quark stars. The model is adjusted to recent hot lattice QCD results for 2 + 1 flavors with almost physical quark masses. We find rather small radii and masses of equilibrium configurations composed of cold deconfined matter, well distinguished from neutron or hybrid stars.

Comments: Dec. 2008. 19 pp