Hybrid protoneutron stars with the Dyson-Schwinger quark model
Abstract
We study the hadron-quark phase transition at finite temperature in the interior of protoneutron stars, combining the Dyson-Schwinger model for quark matter with the Brueckner-Hartree-Fock approach for hadronic matter. We discuss the dependence of the results on different nuclear three-body forces and on details of the quark model. %Compared to the bag model, the transition from the hadron phase %(without hyperons) to the quark phase appears at large density. A maximum mass exceeding two solar masses can be obtained with a strong three-body force and suitable parameter values in the Dyson-Schwinger model. With a hybrid configuration, the maximum mass of protoneutron stars is larger then that of cold neutron stars, such that a delayed collapse might be possible in principle.
Keywords
Cite
@article{arxiv.1203.0158,
title = {Hybrid protoneutron stars with the Dyson-Schwinger quark model},
author = {H. Chen and M. Baldo and G. F. Burgio and H. -J. Schulze},
journal= {arXiv preprint arXiv:1203.0158},
year = {2015}
}
Comments
10 pages, 5 figures