标题： 具有Dyson-Schwinger夸克模型的混合中子星 显示英文标题

标题： Hybrid protoneutron stars with the Dyson-Schwinger quark model

摘要： 我们研究了原中子星内部有限温度下的强子-夸克相变，结合了夸克物质的Dyson-Schwinger模型和强子物质的Brueckner-Hartree-Fock方法。 我们讨论了结果对不同核三体力和夸克模型细节的依赖性。 %与袋模型相比，强子相%(无超子)到夸克相的转变出现在高密度下。 通过强三体力和Dyson-Schwinger模型中的合适参数值可以获得超过两个太阳质量的最大质量。 通过混合配置，原中子星的最大质量大于冷中子星的最大质量，因此在原则上可能发生延迟坍缩。 显示英文摘要

摘要： 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.