中子星中夸克-强子相变的尺寸效应
Quark-Hadron Phase Transition with Finite-Size Effects in Neutron Stars
摘要：
我们研究了中子星中有限尺寸效应下的夸克-强子相变。在研究多组分体系的相变时，一般应考虑有限尺寸效应。然而，相变的行为强烈地依赖于夸克和强子物质、表面张力、中微子分数和温度的模型。我们发现，如果表面张力是强的，状态方程变得类似的情况下，麦克斯韦建设的任何强子和/或夸克模型，虽然我们采用吉布斯条件。我们还发现，该状态方程的质量半径关系与观测结果是一致的，我们的模型是适用于现实的天体物理现象，如致密恒星的热演化。
英文摘要：
We study the quark-hadron phase transition with the finite-size effects in neutron stars. The finite-size effects should be, generally, taken into account in the phase transition of multi-component system. The behavior of the phase transition, however, strongly depends on the models for quark and hadron matter, surface tension, neutrino fraction, and temperature. We find that, if the surface tension is strong, the EOS becomes similar to the case of a Maxwell construction for any hadron and/or quark model, though we adopt the Gibbs conditions. We also find that the mass-radius relations for that EOS are consistent with the observations, and our model is then applicable to realistic astrophysical phenomena such as the thermal evolution of compact stars.
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