Associations of decimetric type III bursts with coronal mass ejections and Hα flares

被引：0

作者：

Ma, Yuan ^{[1
]}

Wang, De-Yu ^{[2
]}

Lin, Jun ^{[1
,3
]}

Dai, Shuo ^{[1
]}

Zhang, Xue-Fei ^{[1
]}

机构：

[1] Chinese Acad Sci, Yunnan Astron Observ, Natl Astron Observ China, Kunming 650011, Peoples R China

[2] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China

[3] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2010年 / 10卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Sun: magnetic fields; Sun: flares; Sun: radio bursts; Sun: coronal mass ejections; RADIO-EMISSION; SOLAR-FLARES; ACCELERATION; RECONNECTION; MODEL; CME;

D O I：

10.1088/1674-4527/10/5/008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a statistical study of decimetric type III radio bursts, coronal mass ejections (CMEs), and H alpha flares observed in the period from July 2000 to March 2005. In total, we investigated 395 decimetric type HI radio burst events, 21% of which showed apparent correlation to CMEs that were associated with Ha flares. We noticed that the Ha flares which were strongly associated with CMEs were gradual events, and 82% of them took place before CMEs appeared in the field of view of LASCO C2; that most of the CME-associated radio bursts started in the frequency range around 750 MHz with a frequency drifting rate of several hundred MHz s(-1), of which both positive and negative ones were recognized; and that the correlation of type III radio bursts to CMEs without associated flares is fairly vague, less than 9%.

引用

页码：484 / 494

页数：11

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