中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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.

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来源:上海天文台

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