부산대학교 도서관

We study the cooling behaviour of an isolated strange quark star, using an equation of state derived from perturbative QCD up to second order in strong coupling constant, and we compare it with that of a neutron star. After an initial rapid cooling, a quark star may undergo the QCD phase transition to become a neutron star. We propose several signatures for such a scenario: a large amount of energy can be released due to latent heat, a long duration $\gamma$-ray source, and a second neutrino burst after a supernova explosion.
Comment: 12 pages, 11 figures, 4 tables. Deleted a section related to static structure.Very minor updated the results without changing the conclusions.This is the final submitted version after all the proof read processes