KMS of Xinjiang Astronomical Observatory, CAS
| Compact Stars in the vBag Model and Its f-Mode Oscillations | |
Zhou, Heng-Yi1,2 ; Wei, Wei3; Zhou, Xia1,4,5
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| 2023-06-01 | |
| Source Publication | UNIVERSE
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| Volume | 9Issue:6Pages:285 |
| Contribution Rank | 1 |
| Abstract | Electromagnetic (EM) observations and gravitational wave (GW) measurements enable us to determine the mass and radius of neutron stars (NSs) and their tidal deformability, respectively. These parameters offer valuable insights into the properties of dense matter in NSs. In this study, the vector-interaction-enhanced bag model (vBag model) is employed to investigate strange and hybrid stars' properties. The parameters of the vBag model are constrained using multi-messenger observations, revealing that strange stars are incompatible with current observations. In contrast, hybrid stars can exhibit a substantial mixed phase region and a thin hadronic shell. Furthermore, we present the frequencies and damping time of fundamental mode (f-mode) oscillations of hybrid stars and test their universal relations with compactness and tidal deformability. The findings indicate that the presence of mixed phase components leads to larger frequencies and shorter damping time of the f-mode oscillation of hybrid stars, and the softer equation of state (EoS) affects this behavior more significantly. The universal relations of hybrid stars in the vBag model can be described by fourth-order/seventh-order polynomials, which do not break the previous results. |
| Keyword | equation of state quark matter compact stars |
| DOI | 10.3390/universe9060285 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | DIRAC-BRUECKNER APPROACH ; EQUATION-OF-STATE ; DYNAMICAL MODEL ; QUARK MATTER ; NEUTRON ; SYSTEMS ; ANALOGY |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS ID | WOS:001015820400001 |
| Publisher | MDPI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/5278 |
| Collection | 中国科学院新疆天文台 射电天文研究室_脉冲星研究团组 |
| Corresponding Author | Zhou, Xia |
| Affiliation | 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.Huazhong Agr Univ, Coll Sci, Wuhan 430079, Peoples R China 4.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 5.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Zhou, Heng-Yi,Wei, Wei,Zhou, Xia. Compact Stars in the vBag Model and Its f-Mode Oscillations[J]. UNIVERSE,2023,9(6):285. |
| APA | Zhou, Heng-Yi,Wei, Wei,&Zhou, Xia.(2023).Compact Stars in the vBag Model and Its f-Mode Oscillations.UNIVERSE,9(6),285. |
| MLA | Zhou, Heng-Yi,et al."Compact Stars in the vBag Model and Its f-Mode Oscillations".UNIVERSE 9.6(2023):285. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Zhou-2023-Compact St（1169KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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