Astronomy and Astrophysics – Astronomy
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.1012k&link_type=abstract
American Astronomical Society, SPD meeting #40, #10.12; Bulletin of the American Astronomical Society, Vol. 41, p.825
Astronomy and Astrophysics
Astronomy
Scientific paper
Filament eruptions are extremely important phenomena due to their association with coronal mass ejections and their effects on space weather. Little is known about the filament mass and composition in the eruption process, since most of the related research has concentrated on the evolution and disruption of the magnetic field. Following up on our previous work, we are presenting an analysis of nineteen quiet Sun filament eruptions observed by MLSO in H-alpha and He I 10830 A that has identified a compositional precursor common to all of these eruptions. A general trend of increasing homogenization of the filament mass composition with concurrent increases in absorption in H-alpha and He I and the level of activity, all starting at least one day prior to eruption, suggests the possibility that an extended period of mass loading is occurring during the build-up to these eruptions. Funding was provided by a NASA GSRP training grant from GSFC.
Alexander Dave
Gilbert Henri
Kilper Gary
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