천문학회보 (The Bulletin of The Korean Astronomical Society)
- 제40권1호
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- Pages.64.2-64.2
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- 2015
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- 1226-2692(pISSN)
Stereoscopic observations of front-side halo CMEs by SOHO and STEREO from 2009 to 2013
- Jang, Soojeong (Kyung Hee University) ;
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Moon, Yong-Jae
(Kyung Hee University) ;
- Kim, Roksoon (Korea Astronomy and Space Science Institute) ;
- Lee, Harim (Kyung Hee University)
- 발행 : 2015.04.10
초록
We present a comprehensive catalog of 307 front-side halo (partial and full) CMEs during 2009 and 2013 observed by both SOHO and STEREO. This catalog includes 2D CME properties from single spacecraft (SOHO) as well as 3D ones from multi-spacecraft. To determine the 3D CME properties (speed, angular width, and source location), we use the STEREO CME analysis tool based on a triangulation method. In this paper, we compare between 2D and 3D CME properties, which is the first statistical comparison between them. As a result, we find that 2D speeds tend to be about 20% underestimated when compared to 3D ones. The 3D angular width ranges from
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