Distributions of Energy and Mass of Coronal Mass Ejections

Details Distributions of Energy and Mass of Coronal Mass Ejections Distributions of Energy and Mass of Coronal Mass Ejections

Oct 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011soph..273..117g&link_type=abstract

Solar Physics, Volume 273, Issue 1, pp.117-123

Physics

Methods: Data Analysis, Sun: Coronal Mass Ejections, Sun: Filaments, Sun: Flares

Scientific paper

The present study investigates the energy and mass distributions of all (11 322) coronal mass ejections (CMEs), 1406 CMEs associated solely with flares (FL CMEs), and 325 CMEs associated solely with filament eruptions (FE CMEs), all of which were observed by the Large Angle and Spectrometric Coronagraph on board the Solar and Heliospheric Observatory (SOHO/LASCO) from January 1996 to December 2009. The results show the following. i) The mean energy of FL CMEs is significantly lower than that of all CMEs. The mean energy of FE CMEs is significantly higher than those of FL CMEs and all CMEs. ii) The mean mass of FL CMEs is slightly larger than that of all CMEs. The mean mass of FE CMEs is significantly larger than those of FL CMEs and all CMEs. Our results suggest that CMEs should shed excess helicity stored in the corona and that the magnetic complexity determines the likelihood of CMEs.

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