MICROWAVE ZEBRA PATTERN STRUCTURES IN THE X2.2 SOLAR FLARE ON 2011 FEBRUARY 15

	MICROWAVE ZEBRA PATTERN STRUCTURES IN THE X2.2 SOLAR FLARE ON 2011 FEBRUARY 15
	Tan, BL 1; Yan, YH 1; Tan, CM 1; Sych, R 1,2; Gao GN(高冠男)3
刊名	ASTROPHYSICAL JOURNAL
	2012-01-10
卷号	744 期号:2
关键词	magnetic fields plasmas Sun: flares Sun: radio radiation
ISSN号	0004-637X
通讯作者	Tan, BL (reprint author), Chinese Acad Sci, Natl Astron Observ, Key Lab Solar Act, Beijing 100012, Peoples R China.
产权排序	第三完成单位
英文摘要	A zebra pattern (ZP) structure is the most intriguing fine structure on the dynamic spectrograph of a solar microwave burst. On 2011 February 15, an X2.2 flare event erupted on the solar disk, which is the first X-class flare since the solar Schwabe cycle 24. It is interesting that there are several microwave ZPs observed by the Chinese Solar Broadband Radio Spectrometer (SBRS/Huairou) at a frequency of 6.40-7.00 GHz (ZP1) and at a frequency of 2.60-2.75 GHz (ZP2) and by the Yunnan Solar Broadband Radio Spectrometer (SBRS/Yunnan) at a frequency of 1.04-1.13 GHz (ZP3). The most important phenomenon is the unusual high-frequency ZP structure (ZP1, up to 7.00 GHz) that occurred in the early rising phase of the flare and the two ZP structures (ZP2, ZP3) with relatively low frequencies that occurred in the decay phase of the flare. By scrutinizing the current prevalent theoretical models of ZP structure generations and comparing their estimated magnetic field strengths in the corresponding source regions, we suggest that the double plasma resonance model is the most probable one for explaining the formation of microwave ZPs, which may derive the magnetic field strengths at about 230-345 G, 126-147 G, and 23-26 G in the source regions of ZP1, ZP2, and ZP3, respectively.
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]	CORONAL MAGNETIC-FIELD ; BROAD-BAND SPECTROMETER ; RADIO-BURSTS ; FINE-STRUCTURES ; PLASMA RADIATION ; EMISSION ; MODEL ; INSTABILITY ; ABSORPTION ; GHZ
收录类别	SCI
原文出处	http://iopscience.iop.org/article/10.1088/0004-637X/744/2/166/meta
语种	英语
WOS记录号	WOS:000298666400086
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/5625]
专题	云南天文台_射电天文研究组
作者单位	1.Key Laboratory of Solar Activity, National Astronomical Observatories Chinese Academy of Sciences, Beijing 100012, China 2.Institute of Solar-Terrestrial Physics of Siberian Branch of Russian Academy of Sciences, Irkutsk 664033, Russia 3.National Astronomical Observatories/Yunnan Astronomical Observatories Chinese Academy of Sciences, Kunming 650011, Yunnan Province, China
推荐引用方式 GB/T 7714	Tan, BL,Yan, YH,Tan, CM,et al. MICROWAVE ZEBRA PATTERN STRUCTURES IN THE X2.2 SOLAR FLARE ON 2011 FEBRUARY 15[J]. ASTROPHYSICAL JOURNAL,2012,744(2).
APA	Tan, BL,Yan, YH,Tan, CM,Sych, R,&Gao GN.(2012).MICROWAVE ZEBRA PATTERN STRUCTURES IN THE X2.2 SOLAR FLARE ON 2011 FEBRUARY 15.ASTROPHYSICAL JOURNAL,744(2).
MLA	Tan, BL,et al."MICROWAVE ZEBRA PATTERN STRUCTURES IN THE X2.2 SOLAR FLARE ON 2011 FEBRUARY 15".ASTROPHYSICAL JOURNAL 744.2(2012).