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A phenomenological study of hybrid stars in which the crossover transition from quark to hadron makes the EOS stiffer in contrast to the hybrid EOS based on Maxwell condition
Zhao, T; Li, CM; Zhao, YP; Yan, Y; Luo, XL; Zong, HS; Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2017
发表期刊MODERN PHYSICS LETTERS A
卷号32期号:8页码:1750051
文章类型Article
摘要In this paper, we make a phenomenological study of the mass-radii relationship of hybrid stars from the point of view of the smooth crossover phase transition. We find a way to construct stiff hybrid equations of state (EOSs) with soft EOSs of both the quark matter and the hadronic matter. For the hadron phase, we adopt the EOS softened by introducing hyperons that are considered to exist in the core of a neutron star. For the quark phase, we introduce a quark EOS based on the Dyson-Schwinger equation (DSE) that is calculated in our previous work, and it is also a soft EOS. In contrast to the hybrid EOS based on Maxwell condition, we find that the resulting EOS is stiff and the maximum mass of the hybrid stars is still about two times of solar mass. This result indicates the rich possibilities of the crossover model.
关键词Equation Of State Dyson-schwinger Equation Maxwell Condition Crossover Model
学科领域Physics
资助者National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005]
DOIhttp://dx.doi.org/10.1142/S0217732317500511
关键词[WOS]EQUATION-OF-STATE ; NEUTRON-STARS ; MATTER ; MODEL ; QCD ; MASS ; DENSITY
语种英语
资助者National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005] ; National Natural Science Foundation of China [11275097, 11475085, 11535005]
WOS类目Physics, Nuclear ; Physics, Particles & Fields ; Physics, Mathematical
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/22107
专题理论物理所2017年知识产出
通讯作者Zong, HS (reprint author), Nanjing Univ, Dept Phys, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Jiangsu, Peoples R China.; Zong, HS (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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GB/T 7714
Zhao, T,Li, CM,Zhao, YP,et al. A phenomenological study of hybrid stars in which the crossover transition from quark to hadron makes the EOS stiffer in contrast to the hybrid EOS based on Maxwell condition[J]. MODERN PHYSICS LETTERS A,2017,32(8):1750051.
APA Zhao, T.,Li, CM.,Zhao, YP.,Yan, Y.,Luo, XL.,...&Zong, HS .(2017).A phenomenological study of hybrid stars in which the crossover transition from quark to hadron makes the EOS stiffer in contrast to the hybrid EOS based on Maxwell condition.MODERN PHYSICS LETTERS A,32(8),1750051.
MLA Zhao, T,et al."A phenomenological study of hybrid stars in which the crossover transition from quark to hadron makes the EOS stiffer in contrast to the hybrid EOS based on Maxwell condition".MODERN PHYSICS LETTERS A 32.8(2017):1750051.
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