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The evolution of a rapidly-expanding active region loop into a trans-equatorial coronal mass ejectionOn 23 February 1997, a coronal mass ejection erupted off the NE limb of the sun from a coronal loop system which had earlier been visible soft X-rays and Fe XIV. The ejection coincided with the onset of a small soft X-ray event, and it left the corona at a position angle of around 60 deg at around 880 km s(exp -1). This ejection then merged with a much larger event which spanned the equator and became indistinguishable, in projection, with the primary event. The soft X-ray images indicate that the highest temperature plasma was associated with the loop system near the original erupting loop. A large loop system became visible south of the equator as the coronal mass ejection developed. It appears that there are high closed coronal magnetic loops linking the northern region to that in the south.
Document ID
19990056528
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Simnett, G. M.
(Birmingham Univ. United Kingdom)
Hudson, H. S.
(Hawaii Univ. Honolulu, HI United States)
Date Acquired
August 19, 2013
Publication Date
December 1, 1997
Publication Information
Publication: Proceedings of the 31st ESALB Symposium on Correlated Phenomena at the Sun, in the Heliosphere and in Geospace
Subject Category
Solar Physics
Funding Number(s)
CONTRACT_GRANT: NAS8-37334
Distribution Limits
Public
Copyright
Other
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