http://arxiv.org/abs/1906.11100
We report the first results of the extension of the QMC model for asymmetric dense matter at finite temperature. The effects of temperature on particle composition (including the full baryon octet content) of the core of (proto-)neutron stars, as well as on the equation of state, are studied. We consider both dense matter in chemical equilibrium and matter in which neutrinos are trapped. In order to simulate stellar temperature profiles that increase with density and stellar radius, the entropy per baryon is fixed. Under these conditions, the model predicts that proto-neutron stars are already born with hyperons present at about the threshold density for their appearance in cold neutron stars, reaching about 20% of the baryon content in the center of the most massive star produced.
J. J.R.Stone, V. V.Dexheimer, P. P.A.M.Guichon, et. al.
Thu, 27 Jun 19
60/62
Comments: 23 pages, 12 figures
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