Observational evidence for solar coronal decimetric radio pulsations with very short periods

doi:10.1016/j.chinastron.2003.10.006

YNAO OpenIR > 射电天文研究组

	Observational evidence for solar coronal decimetric radio pulsations with very short periods
	Xie RX(谢瑞祥)1 ; Wang M(汪敏)1 ; Shi SB(施硕彪)1 ; Xu C(许春)1 ; Li WH(李维华)1 ; Yan, YH 2; Xie, RX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
发表期刊	CHINESE ASTRONOMY AND ASTROPHYSICS
	2003-10
卷号	27 期号:4 页码:426-434
DOI	10.1016/j.chinastron.2003.10.006
产权排序	第1完成单位
收录类别	SCI
关键词	Sun : Corona Sun : Magnetic Field Sun : Radio Radiation
摘要	Using the decimetric (700-1500MHz) radio spectrometer and the synchronous observational system with high temporal resolution at four frequencies (1420, 2130, 2840 and 4260 MHz) of Yunnan Observatory, two rare events were observed on 2001 June 24 and 1990 July 30. The former was a small radio burst exhibiting pulsations with short periods (about 29, 40 and 100 ms) in the impulsive phase. The latter was a large radio burst, which at 2840 MHz produced radio pulsations with period of about 30 ms. This paper focuses on pulsations with very short periods in the range of 29-40 ms. The mechanism of generation of such pulsations may be modulation of radio radiation by the periodic trains of whistler packets originating in unstable regions of the corona. Alternatively, these pulsations can be attributed to wave-wave non-linear interactions of electrostatic upper hybrid waves driven by beams of precipitating electrons in flaring loops.
语种	英语
学科领域	Astronomy & Astrophysics
文章类型	Article
ISSN	0275-1062
URL	查看原文
WOS记录号	WOS:000186654100007
WOS研究方向	Astronomy & Astrophysics
WOS类目	Astronomy & Astrophysics
关键词[WOS]	SLOW MAGNETOACOUSTIC WAVES ; LOOPS ; OSCILLATIONS ; SIGNATURE ; EMISSION ; REGION
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ynao.ac.cn/handle/114a53/5608
专题	射电天文研究组
通讯作者	Xie, RX (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Astron Observ, Kunming 650011, Peoples R China.
作者单位	1.Yunnan Astronomical Observatory, National Astronomical Observatories, Chinese Academy of Sciences, Kunming 650011, China 2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
第一作者单位	中国科学院云南天文台
推荐引用方式 GB/T 7714	Xie RX,Wang M,Shi SB,et al. Observational evidence for solar coronal decimetric radio pulsations with very short periods[J]. CHINESE ASTRONOMY AND ASTROPHYSICS,2003,27(4):426-434.
APA	Xie RX.,Wang M.,Shi SB.,Xu C.,Li WH.,...&Xie, RX .(2003).Observational evidence for solar coronal decimetric radio pulsations with very short periods.CHINESE ASTRONOMY AND ASTROPHYSICS,27(4),426-434.
MLA	Xie RX,et al."Observational evidence for solar coronal decimetric radio pulsations with very short periods".CHINESE ASTRONOMY AND ASTROPHYSICS 27.4(2003):426-434.

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