Properties of isospin asymmetric quark matter in quark stars
Peng-Cheng Chu, Xiao‐Hua Li, He Liu, Min Ju, Ying Zhou
Abstract
In this work, we explore the properties of isospin asymmetric quark matter in quark stars (QSs). The isospin chemical potential, the isospin asymmetry, the quark matter symmetry energy, the equation of state (EOS) of strange quark matter (SQM), and the maximum mass of QSs are also studied by using different quark phenomenological models. Our results indicate that the parameter space of the quark phenomenological models for the quark matter symmetry energy and the EOS of the star matter can be reduced by considering the recent mass-radius estimates of PSR $\mathrm{J}0740+6620$, PSR $\mathrm{J}0030+0451$, 4U 1702-429, and the central compact star within the supernova remnant HESS J1731-347.