Compact Stars in the vBag Model and Its f-Mode Oscillations
文献类型：期刊论文
| 作者 | Zhou, Heng-Yi4,5; Wei, Wei3; Zhou, Xia1,2,5
|
| 刊名 | UNIVERSE
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 9期号:6页码:14 |
| 关键词 | equation of state quark matter compact stars |
| DOI | 10.3390/universe9060285 |
| 通讯作者 | Zhou, Xia(zhouxia@xao.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | DIRAC-BRUECKNER APPROACH ; EQUATION-OF-STATE ; DYNAMICAL MODEL ; QUARK MATTER ; NEUTRON ; SYSTEMS ; ANALOGY |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001015820400001 |
| 出版者 | MDPI |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5277]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Zhou, Xia |
| 作者单位 | 1.Xinjiang Key Lab Radio Astrophys, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 3.Huazhong Agr Univ, Coll Sci, Wuhan 430079, Peoples R China 4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 5.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 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):14. |
| APA | Zhou, Heng-Yi,Wei, Wei,&Zhou, Xia.(2023).Compact Stars in the vBag Model and Its f-Mode Oscillations.UNIVERSE,9(6),14. |
| MLA | Zhou, Heng-Yi,et al."Compact Stars in the vBag Model and Its f-Mode Oscillations".UNIVERSE 9.6(2023):14. |
入库方式： OAI收割
来源：新疆天文台
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