Activity associated with coronal mass ejections at solar minimum - SMM observations from 1984-1986

Details Activity associated with coronal mass ejections at solar minimum - SMM observations from 1984-1986 Activity associated with coronal mass ejections at solar minimum - SMM observations from 1984-1986

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991soph..136..379s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 136, Dec. 1991, p. 379-394.

Physics

73

Solar Corona, Solar Maximum Mission, Stellar Mass Ejection, Nasa Space Programs, Solar X-Rays

Scientific paper

Seventy-three coronal mass ejections (CMEs) observed by the coronagraph aboard SMM between 1984 and 1986 were examined in order to determine the distribution of various forms of solar activity that were spatially and temporally associated with mass ejections during solar minimum phase. For each coronal mass ejection a speed was measured, and the departure time of the transient from the lower corona estimated. Other forms of solar activity that appeared within 45 deg longitude and 30 deg latitude of the mass ejection and within +/-90 min of its extrapolated departure time were explored. The statistical results of the analysis of these 73 CMEs are presented, and it is found that slightly less than half of them were infrequently associated with other forms of solar activity. It is suggested that the distribution of the various forms of activity related to CMEs does not change at different phases of the solar cycle. For those CMEs with associations, it is found that eruptive prominences and soft X-rays were the most likely forms of activity to accompany the appearance of mass ejections.

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