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Two types of glitches in a solid quark star model
文献类型：期刊论文
| 作者 | Zhou, E. P.1,2; Lu, J. G.1,2; Tong, H.3 ; Xu, R. X.1,2,4
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2014-09-21 |
| 卷号 | 443期号:3页码:2705-2710 |
| 关键词 | dense matter stars: magnetar stars: neutron pulsars: general |
| 英文摘要 | Glitch (sudden spin-up) is a common phenomenon in pulsar observations. However, the physical mechanism of glitch is still a matter of debate because it depends on the puzzle of pulsar's inner structure, i.e. the equation of state of dense matter. Some pulsars (e.g. Vela like) show large glitches (Delta nu/nu similar to 10(-6)) but release negligible energy, whereas the large glitches of AXPs/SGRs (anomalous X-ray pulsars/soft gamma repeaters) are usually (but not always) accompanied with detectable energy releases manifesting as X-ray bursts or outbursts. We try to understand this aspect of glitches in a starquake model of solid quark stars. There are two kinds of glitches in this scenario: bulk-invariable (type I) and bulk-variable (type II) ones. The total stellar volume changes (and then energy releases) significantly for the latter but not for the former. Therefore, glitches accompanied with X-ray bursts (e.g. that of AXP/SGRs) could originate from type II starquakes induced probably by accretion, while the others without evident energy release (e.g. that of Vela pulsar) would be the result of type I starquakes due to, simply, a change of stellar ellipticity. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | NEUTRON-STAR ; VELA PULSAR ; 1E 2259+586 ; QUAKES ; OUTBURST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000342920400060 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/587]  |
| 专题 | 脉冲星研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Peking Univ, State Key Lab Nucl Sci & Technol, Beijing 100871, Peoples R China 2.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China 4.Peking Univ, Kavil Inst Astron & Astrophys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, E. P.,Lu, J. G.,Tong, H.,et al. Two types of glitches in a solid quark star model[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,443(3):2705-2710. |
| APA | Zhou, E. P.,Lu, J. G.,Tong, H.,&Xu, R. X..(2014).Two types of glitches in a solid quark star model.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,443(3),2705-2710. |
| MLA | Zhou, E. P.,et al."Two types of glitches in a solid quark star model".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 443.3(2014):2705-2710. |
入库方式： OAI收割
来源：新疆天文台
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