Width of radio-loud and radio-quiet CMEs

被引：20
|
作者：
Michalek, G. [1 ]
Gopalswamy, N.
Xie, H.
机构：
[1] Jagiellonian Univ, Astron Observ, Krakow, Poland
[2] NASA, Solar Syst Explorat Div, GSFC, Greenbelt, MD USA
[3] Catholic Univ Amer, Ctr Solar & Space Weather, Washington, DC USA
来源：
SOLAR PHYSICS | 2007年 / 246卷 / 02期
关键词：
Sun; solar activity; coronal mass ejections; solar radio emission;
D O I：
10.1007/s11207-007-9062-y
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In the present paper we report on the difference in angular sizes between radio-loud and radio-quiet CMEs. For this purpose we compiled these two samples of events using Wind/WAVES and SOHO/LASCO observations obtained during 1996-2005. We show that the radio-loud CMEs are almost twice as wide as the radio-quiet CMEs (considering expanding parts of CMEs). Furthermore, we show that the radio-quiet CMEs have a narrow expanding bright part with a large extended diffusive structure. These results were obtained by measuring the CME widths in three different ways.
引用
收藏
页码：409 / 414
页数：6
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