Mass ejections from the solar corona into interplanetary space

Details Mass ejections from the solar corona into interplanetary space Mass ejections from the solar corona into interplanetary space

Jun 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977cosp.meetr....h&link_type=abstract

COSPAR, Plenary Meeting, 20th, Tel Aviv, Israel, June 7-18, 1977, Paper. 19 p.

Astronomy and Astrophysics

Astronomy

Interplanetary Medium, Solar Corona, Solar Flux, Solar Magnetic Field, Stellar Mass Ejection, Coronagraphs, Frequency Measurement, Gas Pressure, Loops, Skylab Program, Solar Activity, Solar Radio Bursts, Spaceborne Astronomy

Scientific paper

Results obtained from analysis of Skylab coronagraph images of mass ejections from the solar corona are reviewed which demonstrate the importance of mass-ejection coronal transients to the interplanetary medium and which support the belief that magnetic forces are the primary mechanism driving mass ejections from the corona. Observations of 13 large ejection events are examined which indicate that coronal mass ejections contribute a nonnegligible fraction of the mass flux from the sun, especially toward the heliographic equator near the maximum of a solar activity cycle. It is shown that observed loop-shaped transients were associated with regions of increased magnetic field and with separations of unipolar field regions, that the forces driving the transients outward acted to great heights long after the onsets of the events, and that the behavior of the ejecta was magnetically controlled. It is concluded that mass ejections from the corona contributed at least 3% of the mass flux from the sun during the Skylab era and that the most common loop-shaped ejections are magnetically driven through the corona.

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