中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Microwave and hard X-ray spectral evolution for the 13 December 2006 solar flare

文献类型:期刊论文

作者Ning, Zongjun
刊名SOLAR PHYSICS
出版日期2008
卷号247期号:1页码:53-62
关键词flares radio radiation hard X-rays
ISSN号0038-0938
英文摘要This paper explores the time evolution of microwave and hard X-ray spectral indexes in the solar flare observed by Nobeyama Radio Polarimeters (NoRP) and the Ramaty High Energy Solar Spectroscopy Imager (RHESSI) on 13 December 2006. The microwave spectral index, gamma (MW), is derived from the emissions at two frequencies, 17 and 35 GHz, and hard X-ray spectral index, gamma (HXR), is derived from RHESSI spectra. Fifteen subpeaks are detected at the microwave and hard X-ray emissions. The microwave spectral indexes tend to be harder than hard X-ray spectral indexes during the flare, which is consistent with previous findings. All detected subpeaks follow the soft-hard-soft spectral behaviours in the hard X-ray rise-peak-decay phases. However, the corresponding microwave subpeaks display different spectral behaviour, such as soft-hard-soft, soft-hard-harder, soft-hard-soft+hard or irregular patterns. These contradictions reveal the complicated acceleration mechanism for low- and high-energy electrons during this event. It is also interesting that the microwave interpeak spectral indexes are much more consistent with one another.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]ENERGETIC ELECTRONS ; PARTICLE ACCELERATION ; MILLIMETER EMISSION ; BURSTS ; RADIO ; DYNAMICS ; NOBEYAMA ; MISSION ; EVENTS ; IMAGES
收录类别SCI
语种英语
WOS记录号WOS:000252476300005
公开日期2011-12-30
源URL[http://159.226.72.40/handle/332002/2049]  
专题紫金山天文台_太阳活动的多波段观测研究团组
作者单位Purple Mt Observ, Nanjing 210093, Peoples R China
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GB/T 7714
Ning, Zongjun. Microwave and hard X-ray spectral evolution for the 13 December 2006 solar flare[J]. SOLAR PHYSICS,2008,247(1):53-62.
APA Ning, Zongjun.(2008).Microwave and hard X-ray spectral evolution for the 13 December 2006 solar flare.SOLAR PHYSICS,247(1),53-62.
MLA Ning, Zongjun."Microwave and hard X-ray spectral evolution for the 13 December 2006 solar flare".SOLAR PHYSICS 247.1(2008):53-62.

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来源:紫金山天文台

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