论文标题
与多通用剂天体物理学一致的超型混合恒星
Ultracompact hybrid stars consistent with multimessenger astrophysics
论文作者
论文摘要
在这项工作中，我们考虑了密集QCD中相变的后果对紧凑型恒星的性质以及对引力波和X射线天体物理学中观察计划的影响。我们建模的关键基础假设是一个强大的一阶相变，超过了紧凑型恒星的辐射分支达到两极质量极限。我们的分析预测，在紧凑型恒星序列上，具有非常小的半径（在6-9 km的范围内）非常小的半径恒星，这完全与当前的多通用器数据完全一致。我们表明，具有与无线电脉冲观察一致的二极极质量悬式星星的序列也与大型半径的推断，通过对中子星的X射线观测到较大的X射线观测以及通过对二进制中性恒星的引力波分析的X射线观测以及对我们的模型GW170817的二进制中性恒星分析所预测的小半径，这些模型gw17081708170817081708170817081708170817081708170817081708170阶段阶段阶段阶段是第一个排序的QCD QCD QCD QCD QCD QCD QCD QCD QCD QCD QCD。
In this work, we consider the consequences of phase transition in dense QCD on the properties of compact stars and implications for the observational program in gravitational wave and X-ray astrophysics. The key underlying assumption of our modeling is a strong first-order phase transition past the point where the hadronic branch of compact stars reaches the two-solar mass limit. Our analysis predicts ultracompact stars with very small radii - in the range of 6-9 km - living on compact star sequences that are entirely consistent with the current multimessenger data. We show that sequences featuring two-solar mass hadronic stars consistent with radio-pulsar observations are also consistent with the inferences of large radii for massive neutron stars by NICER X-ray observations of neutron stars and the small radii predicted by gravitational waves analysis of the binary neutron star inspiral event GW170817 for our models that feature a strong first-order QCD phase transition.
