Sound velocity in dense stellar matter with strangeness and compact stars *
نویسندگان
چکیده
The phase state of dense matter in the intermediate density range ($\sim$1-10 times nuclear saturation density) is both intriguing and unclear could have important observable effects present gravitational wave era neutron stars. As increases compact stars, sound velocity expected to approach conformal limit ($c_s/c=1/\sqrt{3}$) at high densities should also fulfill causality ($c_s/c<1$). However, its detailed behavior remains a hot topic debate. It was suggested that be an indicator for deconfinement transition, where particular shape might dependence. In this work, we explore general properties adiabatic index hybrid as well stars quark Various conditions are employed hadron-quark transition with varying interface tension. We find can achieved by nonperturbative phase, addition transition. And it leads more star similar mass. then propose new class equation states, which tested future high-precision radius measurements pulsar-like objects.
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ژورنال
عنوان ژورنال: Chinese Physics C
سال: 2021
ISSN: ['1674-1137', '2058-6132']
DOI: https://doi.org/10.1088/1674-1137/abea0d