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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.
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
Source PublicationMODERN PHYSICS LETTERS A
Language英语
KeywordEquation Of State Dyson-schwinger Equation Maxwell Condition Crossover Model
AbstractIn 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.
2017
Volume32Issue:8Pages:1750051
Subject AreaPhysics
DOIhttp://dx.doi.org/10.1142/S0217732317500511
Funding OrganizationNational 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]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22107
CollectionSCI期刊论文
Corresponding AuthorZong, 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.
Recommended Citation
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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