论文标题
与重力波事件的混合恒星约束
Constraint on hybrid stars with gravitational wave events
论文作者
论文摘要
在最近发现的紧凑物体/处女座观测中的紧凑物体的动机中，我们研究了将其中一些物体识别为由暗恒星制成的紧凑型恒星，或者是被称为暗星的紧凑型恒星，或者是被称为杂交恒星的黑物质和核物质的混合物。特别是，在GW190814中，报告了一个新的，具有2.6 $ m _ {\ odot} $的新紧凑型对象。这可能是最轻的黑洞，最重的中子星和黑暗或黑暗或混合恒星。在这项工作中，我们扩展了有关最近的Ligo/处女座事件的解释，即在各向同性极限中由各种自我相互作用的暗物质（SIDM）制成的混合恒星。我们特别注意混合恒星的马鞍不稳定性，这将限制可能的SIDM模型。
Motivated by the recent discoveries of compact objects from LIGO/Virgo observations, we study the possibility of identifying some of these objects as compact stars made of dark matter called dark stars, or the mix of dark and nuclear matters called hybrid stars. In particular, in GW190814, a new compact object with 2.6 $M_{\odot}$ is reported. This could be the lightest black hole, the heaviest neutron star, and a dark or hybrid star. In this work, we extend the discussion on the interpretations of the recent LIGO/Virgo events as hybrid stars made of various self-interacting dark matter (SIDM) in the isotropic limit. We pay particular attention to the saddle instability of the hybrid stars which will constrain the possible SIDM models.
