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 |
DOI | 10.1103/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. |
入库方式: OAI收割
来源:理论物理研究所
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