Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2002-09-22
Nucl.Phys. A715 (2003) 831-834
Physics
Nuclear Physics
Nuclear Theory
4 pages, 2 figures, Contribution to Proceedings of Quark Matter 2002, Nantes, July 18 - 24, 2002
Scientific paper
10.1016/S0375-9474(02)01513-0
We have found correlations between properties of the equation of state for stellar matter with a phase transition at supernuclear densities and two characteristic features of a "phase diagram" for rotating compact stars in the angular velocity - baryon number plane: 1) the critical dividing line between mono- and two-phase star configurations and 2) the maximum mass line. The second line corresponds to the minimum mass function for black hole candidates whereas the first one is observable by a population statistics, e.g. for Z-sources in low-mass X-ray binaries. The observation of a population gap in the mass distribution for the latter is suggested as an astrophysical verification of the existence of a first order phase transition in QCD at high densities such as the deconfinement.
Blaschke David
Grigorian Hovik
Poghosyan Gevorg
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