The onset of CMEs in the solar corona

Details The onset of CMEs in the solar corona The onset of CMEs in the solar corona

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26at...20..445f&link_type=abstract

Astronomical and Astrophysical Transactions, vol. 20, Issue 3, pp.445-451

Astronomy and Astrophysics

Astronomy

Solar Corona, Coronal Mass Ejections, Eruptive Prominences

Scientific paper

A pre-eruptive stage of coronal mass ejections is discussed. Source regions of CMEs and CME-associated phenomena are reviewed. It is stressed that the most probable magnetic configuration of a CME source region is a flux rope. This configuration allows a catastrophic process. So the onset of eruption does not need a powerful trigger. We believe that for some classes of CMEs, the problem of the onset of the ejection is similar to the problem of the loss of quiescent filament equilibrium. Since filaments are easily accessible for observation, the regions where CMEs could originate are more or less known. We propose a method to estimate the stability of any observed filament and the probability of its eruption.

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