KMS of Xinjiang Astronomical Observatory, CAS
| Quark stars in the pure pseudo-Wigner phase | |
Su, Li-Qun1; Shi, Chao2; Huang, Yong-Feng3,4; Yan, Yan5 ; Li, Cheng-Ming6; Yuan, Wen-Li1,7,8; Zong, Hong-Shi1,9,10,11
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| 2024-03-01 | |
| Source Publication | ASTROPHYSICS AND SPACE SCIENCE
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| ISSN | 0004-640X |
| Volume | 369Issue:3Pages:29 |
| Contribution Rank | 4 |
| Abstract | In this paper, we consider the scenario of a pure quark star which is completely composed of quarks in the pseudo-Wigner phase. The equation of state (EoS) of deconfined quark stars is studied in the framework of the two-flavor NJL model, and the self-consistent mean field approximation is employed by introducing a parameter alpha combining the original Lagrangian and the Fierz-transformed Lagrangian, L-R = (1-alpha)L + alpha L-F, to measure the weights of different interaction channels. We assume deconfinement phase transition happens along with the chiral phase transition. Thus, due to the lack of description of confinement in the NJL model, the vacuum pressure is set to confine quarks at low densities, which is the pressure corresponding to the critical point of chiral phase transition. We find that the bag constant shifts from (130 MeV)(4) to (150 MeV)(4) as alpha grows. When alpha is around 0.9, the mass-radius relations of deconfined quark stars can meet the requirement of pulsar observations. In addition, the tidal deformability Lambda is found to range in 253 - 482, which satisfies the astronomical constraint of Lambda < 800 for 1.4-solar-mass neutron stars. |
| Keyword | Compact objects Neutron stars Gravitational waves Pulsars |
| DOI | 10.1007/s10509-024-04296-5 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | EQUATION-OF-STATE ; SUPER-HYPERNUCLEI ; BAG CONSTANT ; NJL-MODEL ; DEPENDENCE ; MATTER |
| Funding Project | National Natural Science Foundation of China[12233002] ; National Natural Science Foundation of China[12075117] ; National Natural Science Foundation of China[11535005] ; National Natural Science Foundation of China[12005192] ; National Natural Science Foundation of China[11690030] ; National SKA Program of China[2020SKA0120300] ; China Postdoctoral Science Foundation[2020M672255] ; China Postdoctoral Science Foundation[2020TQ0287] ; National Key R&D Program of China[2021YFA0718500] ; Nation Major State Basic Research and Development of China[2016YFE0129300] ; Jiangsu Province Postgraduate Research and Practice Innovation Programme[KYCX23_0100] ; Fundamental Research Funds for the Central Universities[1227050553] ; Xinjiang Tianchi Program |
| WOS Research Area | Astronomy & Astrophysics |
| WOS Subject | Astronomy & Astrophysics |
| WOS ID | WOS:001195204400001 |
| Publisher | SPRINGER |
| Funding Organization | National Natural Science Foundation of China ; National SKA Program of China ; China Postdoctoral Science Foundation ; National Key R&D Program of China ; Nation Major State Basic Research and Development of China ; Jiangsu Province Postgraduate Research and Practice Innovation Programme ; Fundamental Research Funds for the Central Universities ; Xinjiang Tianchi Program |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6229 |
| Collection | 中国科学院新疆天文台 |
| Corresponding Author | Yan, Yan |
| Affiliation | 1.Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China 2.Nanjing Univ Aeronaut & Astronaut, Dept Nucl Sci & Technol, Nanjing 210016, Peoples R China 3.Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 5.Changzhou Univ, Sch Microelect & Control Engn, Changzhou 213164, Peoples R China 6.Zhengzhou Univ, Sch Phys & Lab Zhongyuan Light, Zhengzhou 450001, Peoples R China 7.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 8.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 9.Anhui Normal Univ, Dept Phys, Wuhu 241000, Peoples R China 10.Nanjing Univ, Nanjing Proton Source Res & Design Ctr, Nanjing 210093, Peoples R China 11.Nanjing Univ, Joint Ctr Particle Nucl Phys & Cosmol, Nanjing 210093, Peoples R China |
| Recommended Citation GB/T 7714 | Su, Li-Qun,Shi, Chao,Huang, Yong-Feng,et al. Quark stars in the pure pseudo-Wigner phase[J]. ASTROPHYSICS AND SPACE SCIENCE,2024,369(3):29. |
| APA | Su, Li-Qun.,Shi, Chao.,Huang, Yong-Feng.,Yan, Yan.,Li, Cheng-Ming.,...&Zong, Hong-Shi.(2024).Quark stars in the pure pseudo-Wigner phase.ASTROPHYSICS AND SPACE SCIENCE,369(3),29. |
| MLA | Su, Li-Qun,et al."Quark stars in the pure pseudo-Wigner phase".ASTROPHYSICS AND SPACE SCIENCE 369.3(2024):29. |
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| Su-2024-Quark stars （1095KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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