PHASE DRIFTS OF SUB-PULSES DURING THE 2004 GIANT FLARE OF SGR 1806-20 AND SETTLING OF THE MAGNETIC FIELDS
文献类型：期刊论文
| 作者 | Xing, Yi1 ; Yu, Wenfei
|
| 刊名 | ASTROPHYSICAL JOURNAL
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 729期号:1页码:1 |
| 关键词 | pulsars: individual (SGR 1806-20) stars: magnetic field stars: neutron |
| 英文摘要 | We analyzed the observations of SGR 1806-20 performed with the Rossi X-ray Timing Explorer during its 2004 giant flare. We studied the phase evolution of the sub-pulses identified in the X-ray waveform and found that the sub-pulses varied in phase with time and then gradually settled, which might indicate drifts of the emission regions relative to the neutron star surface, or changes in the local emission geometry before the magnetic field became stable. The characteristic e-folding timescale of the phase drifts measured starting about 15 s following the initial flux spike is in the range between 37 s and 84 s. This leads to the first measurements of the characteristic timescale for the magnetic field of the neutron star to settle after a field reconfiguration during the giant flare. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | 1998 AUGUST 27 ; RADIATIVE MECHANISM ; SGR-1806-20 ; REPEATERS ; OUTBURSTS ; EVOLUTION ; BEPPOSAX ; BURST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000287255300001 |
| 公开日期 | 2015-01-29 |
| 源URL | [http://119.78.226.72//handle/331011/15493]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Key Lab Res Galaxies & Cosmol, Shanghai 200030, Peoples R China 2.Shanghai Astron Observ, Shanghai 200030, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xing, Yi,Yu, Wenfei. PHASE DRIFTS OF SUB-PULSES DURING THE 2004 GIANT FLARE OF SGR 1806-20 AND SETTLING OF THE MAGNETIC FIELDS[J]. ASTROPHYSICAL JOURNAL,2011,729(1):1. |
| APA | Xing, Yi,&Yu, Wenfei.(2011).PHASE DRIFTS OF SUB-PULSES DURING THE 2004 GIANT FLARE OF SGR 1806-20 AND SETTLING OF THE MAGNETIC FIELDS.ASTROPHYSICAL JOURNAL,729(1),1. |
| MLA | Xing, Yi,et al."PHASE DRIFTS OF SUB-PULSES DURING THE 2004 GIANT FLARE OF SGR 1806-20 AND SETTLING OF THE MAGNETIC FIELDS".ASTROPHYSICAL JOURNAL 729.1(2011):1. |
入库方式： OAI收割
来源：上海天文台
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