论文标题
轴心在杂交恒星的稳定性中效应
Axion effects in the stability of hybrid stars
论文作者
论文摘要
我们研究了通过微观杂种中子恒星的微观状态方程中违反轴突磁场违反强度的电荷 - 差异（CP）的影响。我们假设它们的核心包含夸张的夸克物质，并通过有效的“ T Hooft Incorpenters相互作用”包含轴的效果。使用不同的方法来描述辐射地壳，以使我们的结果更加笼统。我们发现，轴的存在通过削弱解浓度相变并使其达到较低的密度来稳定大量混合中子星对重力塌陷。这使得能够与现代天体物理限制一致地重现混合中性星星。
We investigate the effects of including strong charge-parity (CP) violating effects through axion fields in the microscopic equation of state of massive hybrid neutron stars. We assume that their cores contain deconfined quark matter and include the effects of axions via an effective 't Hooft determinant interaction. The hadronic crusts are described using different approaches in order to make our results more general. We find that the presence of axions stabilizes massive hybrid neutron stars against gravitational collapse by weakening the deconfinement phase transition and bringing it to lower densities. This enables to reproduce hybrid neutron stars in agreement with modern astrophysical constraints.
