Pulsar glitch in a strangeon star model - III. The recovery
文献类型：期刊论文
| 作者 | Lai, X. Y.6,7; Wang, W. H.5; Yuan, J. P.4 ; Lu, R. P.3; Yue, H.3; Xu, R. X.1,2
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2023-06-08 |
| 卷号 | 523期号:3页码:3967-3973 |
| ISSN号 | 0035-8711 |
| 关键词 | dense matter pulsars: general |
| DOI | 10.1093/mnras/stad1653 |
| 通讯作者 | Lai, X. Y.(laixy@pku.edu.cn) ; Xu, R. X.(r.x.xu@pku.edu.cn) |
| 英文摘要 | Strangeon star model has passed various observational tests, such as the massive pulsars and the tidal deformability during binary mergers. Pulsar glitch, as a useful probe for studying the interior structure of pulsars, has also been studied in strangeon star model in our previous papers, including the recovery coefficient, the waiting time of glitches, and glitch activity. In this paper, the recovery process of a glitch is described in the strangeon star model, based on the starquake picture established before (in Paper I). After the starquake, the inner motion of the stellar matter would reduce the tangential pressure in the cracked places at the equatorial plane. The recovery (increase) of the tangential pressure would be achieved by a viscous flow towards the cracked places at equatorial plane, which leads to the exponential recovery of the spin frequency. A uniform viscous flow can reproduce the single exponential decay observed in some glitches, and the viscous time-scale tau and the depth h of the cracking place below the surface can be fitted by the recovery data. It is found that h increases with glitch size Delta nu/nu, which is expected in the glitch scenario of strangeon stars. The magnitude of the recovery predicted in this recovery model is also consistent with that derived from observations. The single exponential decay reproduced by a uniform viscous flow can be generalized to two or more exponentials by the multicomponent of viscous flows. |
| WOS关键词 | NEUTRON STARQUAKES ; QUARK ; QUAKES ; MATTER |
| 资助项目 | National SKA Program of China[2020SKA0120300] ; National SKA Program of China[2020SKA0120100] ; National Natural Science Foundation of China[U1831104] ; National Natural Science Foundation of China[12041304] ; National Natural Science Foundation of China[42174059] ; Outstanding Young and Middle-aged Science and Technology Innovation Teams from Hubei colleges and universities ; Young Top-notch Talent Cultivation Program of Hubei Province |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:001011067600015 |
| 资助机构 | National SKA Program of China ; National Natural Science Foundation of China ; Outstanding Young and Middle-aged Science and Technology Innovation Teams from Hubei colleges and universities ; Young Top-notch Talent Cultivation Program of Hubei Province |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5316]  |
| 专题 | 研究单元未命名 |
| 通讯作者 | Lai, X. Y.; Xu, R. X. |
| 作者单位 | 1.Peking Univ, Kavli Inst Astron & Astrophys, Beijing 100871, Peoples R China 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 5.Wenzhou Univ, Coll Math & Phys, Wenzhou 325035, Peoples R China 6.Hubei Univ Educ, Res Ctr Astron, Wuhan 430205, Peoples R China 7.Hubei Univ Educ, Dept Phys & Astron, Wuhan 430205, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lai, X. Y.,Wang, W. H.,Yuan, J. P.,et al. Pulsar glitch in a strangeon star model - III. The recovery[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2023,523(3):3967-3973. |
| APA | Lai, X. Y.,Wang, W. H.,Yuan, J. P.,Lu, R. P.,Yue, H.,&Xu, R. X..(2023).Pulsar glitch in a strangeon star model - III. The recovery.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,523(3),3967-3973. |
| MLA | Lai, X. Y.,et al."Pulsar glitch in a strangeon star model - III. The recovery".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 523.3(2023):3967-3973. |
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