Two-flavor hybrid stars with the Dyson-Schwinger quark model  

作　　者：魏金标 陈欢 H.-J.Schulze 

机构地区：[1]School of Mathematics and Physics,China University of Geosciences [2]INFN Sezione di Catania,Dipartimento di Fisica,Universitá di Catania

出　　处：《Chinese Physics C》2017年第11期110-116,共7页中国物理C（英文版）

基　　金：Supported by NSFC(11305144,11475149,11303023);Central Universities(CUGL 140609)in China;"NewCompStar,"COST Action MP1304

摘　　要：We study the properties of two-flavor quark matter in the Dyson-Schwinger model and investigate the possible consequences for hybrid neutron stars,with particular regard to the two-solar-mass limit.We find that with some extreme values of the model parameters,the mass fraction of two-flavor quark matter in heavy neutron stars can be as high as 30 percent and the possible energy release during the conversion from nucleonic neutron stars to hybrid stars can reach 1052 erg.We study the properties of two-flavor quark matter in the Dyson-Schwinger model and investigate the possible consequences for hybrid neutron stars,with particular regard to the two-solar-mass limit.We find that with some extreme values of the model parameters,the mass fraction of two-flavor quark matter in heavy neutron stars can be as high as 30 percent and the possible energy release during the conversion from nucleonic neutron stars to hybrid stars can reach 1052 erg.

关 键 词：hybrid stars quark matter equation of state Dyson-Schwinger equations 

分 类 号：O572.33[理学—粒子物理与原子核物理] P145.6[理学—物理]