Bulk Properties of Hybrid Stars with the Color-Flavor Locked QuarkMatter Core  

作　　者：WANG Hong-Yan LIU Guang-Zhou WU Yao-Rui XU Yan ZHU Ming-Feng BAO Tmurbagan ZHAO En-Guang 王红岩;刘广洲;吴姚睿;许妍;朱明枫;包特木尔巴根;赵恩广(College of Physics and College of Computer Science and Technology,Jilin University,Changchun 130012;College of Physics,Beihua University,Jilin 132013;Changchun Observatory,National Astronomical Observatories,Chinese Academy of Sciences,Changchun 130117;Institute for Numerical Calculations,College of Physics and Electronic Information Inner Mongolia University for theNationalities,Tongliao 028043;Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]College of Physics and College of Computer Science and Technology,Jilin University,Changchun 130012 [2]College of Physics,Beihua University,Jilin 132013 [3]Changchun Observatory,National Astronomical Observatories,Chinese Academy of Sciences,Changchun 130117 [4]Institute for Numerical Calculations,College of Physics and Electronic Information Inner Mongolia University for theNationalities,Tongliao 028043 [5]Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190

出　　处：《Chinese Physics Letters》2013年第6期58-62,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant Nos 10675024,11075063 and 11265009;the National Found for Fostering Talents of Basic Science under Grant No J1103202.

摘　　要：We investigate the influence of the energy gap(Δ)of the color-flavor locked(CFL)quark phase on the bulk properties of hybrid stars.The relativistic mean field model is used for hadronic matter and the MIT bag model for CFL quark matter.In our calculation results,we find that with the increase of the CFL energy gap there exists a transition behavior,which goes from the hadron star range through the transition range into the CFL quark star range.The observation data of PRS J1614-2230 are in the hadron star range(withΔ<40MeV).We also find that with hyperons the equation of state(EOS)for the hybrid star matter with the CFL quark matter core has a small change,which can be disregarded.

关 键 词：QUARK HADRON transition 

分 类 号：O57[理学—粒子物理与原子核物理]