论文标题
统一的互动夸克物质及其天体物理含义
Unified Interacting Quark Matter and its Astrophysical Implications
论文作者
论文摘要
我们研究了相互作用的夸克物质（IQM），包括上下夸克物质（$ ud $ qm）和奇怪的夸克物质（SQM）的扰动QCD校正和颜色超导性。我们首先通过简单的修复和重新缩放来得出一个状态方程（EOS）统一所有案例的方程式，通过该方程式，我们通过该方程来最大程度地减少自由度的数量。我们发现，与传统的EOS $ P = 1/3（ρ-4B _ {\ rm eff}）$对于非交互式夸克很重要，在统一的IQM EOS上，对unified iqm EOS的极端相互作用的极限给出了$ p =ρ-2b _ {\ rm eff} $，其中$ b _ b _ $ b _ {我们采用统一的EOS探索由IQM组成的纯相互作用夸克恒星（IQSS）的性质。我们描述了最近的天体物理观察结果，例如脉冲星测量，更好的分析和二进制合并重力波事件GW170817，GW190425和GW190814如何进一步限制了参数空间。 iQSS的最大允许质量的上限为$ m _ {\ rm tov} \ sillsim 3.23 m _ {\ odot} $。我们的分析表明，当前观察到的紧凑型恒星（包括最近报道的GW190814的次要组件）的一种新可能性（$ m = 2.59^{+0.08} _ { - 0.09} \，m _ {\ odot} $）可以是互动quark Matter的Quark sypers。
We investigate interacting quark matter (IQM), including the perturbative QCD correction and color superconductivity, for both up-down quark matter ($ud$QM) and strange quark matter (SQM). We first derive an equation of state (EOS) unifying all cases by a simple reparametrization and rescaling, through which we manage to maximally reduce the number of degrees of freedom. We find, in contrast to the conventional EOS $p=1/3(ρ-4B_{\rm eff})$ for non-interacting quark matter, that taking the extreme strongly interacting limit on the unified IQM EOS gives $p=ρ-2B_{\rm eff}$, where $B_{\rm eff}$ is the effective bag constant. We employ the unified EOS to explore the properties of pure interacting quark stars (IQSs) composed of IQM. We describe how recent astrophysical observations, such as the pulsar-mass measurements, the NICER analysis, and the binary merger gravitational-wave events GW170817, GW190425, and GW190814, further constrain the parameter space. An upper bound for the maximum allowed mass of IQSs is found to be $M_{\rm TOV}\lesssim 3.23 M_{\odot}$. Our analysis indicates a new possibility that the currently observed compact stars, including the recently reported GW190814's secondary component ($M=2.59^{+0.08}_{-0.09}\, M_{\odot}$), can be quark stars composed of interacting quark matter.
