The launch of coronal mass ejections - White light and X ray observations in the low corona

Details The launch of coronal mass ejections - White light and X ray observations in the low corona The launch of coronal mass ejections - White light and X ray observations in the low corona

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....94.2333h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, March 1, 1989, p. 2333-2344.

Astronomy and Astrophysics

Astronomy

18

Optical Measurement, Solar Corona, Stellar Mass Ejection, X Ray Astronomy, Coronal Loops, Solar Flares, Solar Maximum Mission, Solar X-Rays, Spectrometers

Scientific paper

None of the coronal mass ejection (CME) launches presently studied coincide with a flare onset; those flares which do occur in the vicinity of a CME launch site do so after the CME onset, and in one foot of the CME structure. Weak X-ray activity is associated with the footpoints of the CME structures, and these indicate the presence of large coronal structures underlying the CME structures. X-ray enhancements are found after all of the CME onsets, and are in some cases sufficiently bright to be classified as flares; in others, they are taken to be lesser, 'subflare' brightenings.

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