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Isospin properties in quark matter and quark stars within isospin-dependent quark mass models

机译:Quark Matter和Quark Stars在ISOSPIN依赖夸克大规模模型中的Quark Matter和夸克恒星

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摘要

We investigate the isospin properties of the strange quark matter (SQM) and quark stars (QSs) in the framework of the isospin-dependent confining quark matter (ICQM) model and confined-isospin and density-dependent mass (CIDDM) model. Within these two isospin-dependent quark mass phenomenological models, we study the quark matter symmetry energy, the stability of strange quark matter, the quark fractions, the isospin asymmetry, and the quark mass asymmetry in SQM, and the mass-radius relation of quark stars. We find that including isospin dependence of the quark mass can significantly influence the isospin properties of the quark matter. Recently, the LIGO-Virgo collaboration reported their detection of gravitational wave (GW) signals GW170817, which are originating from a binary compact star merger. Using the ICQM model and CIDDM model, we describe the compact stars with the new maximum mass limits 2.01(-0.04)(+0.04) <= M/M-circle dot <= 2.16(-0.15)(+0.17) as quark stars, and the dimensionless tidal deformabilities of QSs are also investigated in this work.
机译:我们调查奇怪夸克物质(SQM)和夸克恒星(QSS)的索波峰属性在ICOSPIN依赖的限制夸克物质(ICQM)模型和限制 - 蛇孔和密度依赖质量(CIDDM)模型的框架中。在这两种依赖于旋流型夸克质量现象学模型中,我们研究了夸克对称能量,奇怪夸克物质的稳定性,夸克级分,索旋素不对称,以及SQM的夸克质量不对称,以及夸克的质量半径关系星星。我们发现,包括夸克质量的异位旋转依赖性可以显着影响夸克物质的索斯波宾特性。最近,Ligo-Virgo协作报告了它们对引力波(GW)信号GW170817的检测,这源自二元紧致星形合并。使用ICQM型号和CIDDM模型,我们描述了具有新的最大质量限制2.01(-0.04)(+ 0.04)<= m / m圆点<= 2.16(-0.15)(+ 0.17)的紧凑型恒星作为夸克恒星在这项工作中也调查了QSS的无量纲潮汐可释放性。

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  • 来源
    《Physical review, C》 |2019年第3期|共8页
  • 作者单位

    Qingdao Univ Technol Sch Sci Qingdao 266000 Peoples R China;

    Qingdao Univ Sci &

    Technol Sch Math &

    Phys Qingdao 266000 Peoples R China;

    Qingdao Univ Technol Sch Sci Qingdao 266000 Peoples R China;

    Univ South China Sch Nucl Sci &

    Technol Hengyang 421001 Peoples R China;

    Sun Yat Sen Univ Sino French Inst Nucl Engn &

    Technol Zhuhai 519082 Peoples R China;

    Shanghai Jiao Tong Univ Sch Phys &

    Astron Shanghai 200240 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 原子核物理学、高能物理学;
  • 关键词

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