Multi-site spectrographic and heliographic observations of radio fine structure on April 10, 2001

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 太阳活动的多波段观测研究团组

	Multi-site spectrographic and heliographic observations of radio fine structure on April 10, 2001
	Chernov, G. P.; Sych, R. A.; Yan, Yihua ; Fu, Qijun ; Tan, Chengming ; Huang, Guangli ; Wang, De-Yu ; Wu, Hongao
刊名	SOLAR PHYSICS
	2006-09-01
卷号	237 期号:2 页码:397-418
关键词	ZEBRA-PATTERN MICROWAVE-BURSTS SOLAR EMISSION REGION WHISTLERS MODEL INSTABILITY GENERATION ORIGIN
ISSN号	0038-0938
英文摘要	We present results of the first simultaneous observations of zebra patterns (ZPs) with super-fine spiky structure in the microwave range made at two observatories similar to 1000 km apart (Beijing and Nanjing, China). The fine structure was recorded by a spectra polarimeter in the 5.2 - 7.6 and 2.8 - 3.6 GHz ranges at the Huairou station and by the spectrometer in the 4.5 - 7.5 GHz range at the Purple Mountain Observatory. Simultaneously, the locations of radio sources were observed by the Siberian Solar Radio Telescope (SSRT) at 5.7 GHz. For a general analysis of the April 10, 2001 event, the Solar and Heliospheric Observatory/Michelson Doppler Imager (SOHO/MDI) data and Transition Region and Coronal Explorer (TRACE) images in EUV 171 angstrom line were used. The circular polarization degree was very weak for the burst background radio emission and moderate to strong for the fine structure. The polarization sign in all the cases probably corresponds to the extraordinary wave mode. Estimations of the magnetic field values in the whistler model for fine structure agree well with the extrapolated values from magnetic maps. Given the possibility of wave transformation in the perpendicular magnetic field and the spiky structure of the ZP, the whistler wave model appears to be the most appropriate explanation for the zebra stripe phenomenon.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ZEBRA-PATTERN ; MICROWAVE-BURSTS ; SOLAR ; EMISSION ; REGION ; WHISTLERS ; MODEL ; INSTABILITY ; GENERATION ; ORIGIN
收录类别	SCI
语种	英语
WOS记录号	WOS:000240616000010
公开日期	2012-02-07
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/3498]
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	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.IZMIRAN, Moscow 142190, Russia 3.Inst Solar Terr Phys, Irkutsk, Russia 4.Acad Sinica, Purple Mt Observ, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Chernov, G. P.,Sych, R. A.,Yan, Yihua,et al. Multi-site spectrographic and heliographic observations of radio fine structure on April 10, 2001[J]. SOLAR PHYSICS,2006,237(2):397-418.
APA	Chernov, G. P..,Sych, R. A..,Yan, Yihua.,Fu, Qijun.,Tan, Chengming.,...&Wu, Hongao.(2006).Multi-site spectrographic and heliographic observations of radio fine structure on April 10, 2001.SOLAR PHYSICS,237(2),397-418.
MLA	Chernov, G. P.,et al."Multi-site spectrographic and heliographic observations of radio fine structure on April 10, 2001".SOLAR PHYSICS 237.2(2006):397-418.