中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Constraints on the hybrid equation of state with a crossover hadron-quark phase transition in the light of GW170817

文献类型:期刊论文

作者Li, CM; Yan, Y2; Geng, JJ; Huang, YF; Zong, HS
刊名PHYSICAL REVIEW D
出版日期2018
卷号98期号:8页码:83013
ISSN号2470-0010
关键词NEUTRON-STARS MODEL QCD MATTER DENSITY
DOI10.1103/PhysRevD.98.083013
英文摘要In this paper, we use the recent updated source properties of GW170817 to constrain the hybrid equation of state (EOS) constructed by a three-window modeling between the hadronic EOS and quark EOS. Specifically, the hadronic EOS is described by the NL3 omega rho model whose corresponding pure neutron star (NS) is already excluded by the constraint of tidal deformability (TD) from GW170817, and the quark EOS is calculated with the 2 + 1 flavors Nambu-Jona-Lasinio (NJL) model. We also consider four other constraints on the hybrid EOS. As a result, we find the parameter set (B-1/4, (mu) over tilde, I) can be well constrained, indicating the possible existence of the hybrid star (HS) with a crossover inside. The type of the two stars in the binary system for nine representative hybrid EOSs is shown in this paper too. Furthermore, the HSs restricted by five constraints do not suggest a pure quark core but a mixed phase in the center.
学科主题Astronomy & Astrophysics ; Physics
语种英语
源URL[http://ir.itp.ac.cn/handle/311006/22796]  
专题理论物理研究所_理论物理所1978-2010年知识产出
作者单位1.Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China
2.Nanjing Proton Source Res & Design Ctr, Nanjing 210093, Jiangsu, Peoples R China
3.Changzhou Univ, Sch Math & Phys, Changzhou 213164, Jiangsu, Peoples R China
4.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China
5.Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China
6.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Li, CM,Yan, Y,Geng, JJ,et al. Constraints on the hybrid equation of state with a crossover hadron-quark phase transition in the light of GW170817[J]. PHYSICAL REVIEW D,2018,98(8):83013.
APA Li, CM,Yan, Y,Geng, JJ,Huang, YF,&Zong, HS.(2018).Constraints on the hybrid equation of state with a crossover hadron-quark phase transition in the light of GW170817.PHYSICAL REVIEW D,98(8),83013.
MLA Li, CM,et al."Constraints on the hybrid equation of state with a crossover hadron-quark phase transition in the light of GW170817".PHYSICAL REVIEW D 98.8(2018):83013.

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来源:理论物理研究所

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