Sudden disappearances of filaments and their relation with Coronal Mass Ejections

Details Sudden disappearances of filaments and their relation with Coronal Mass Ejections Sudden disappearances of filaments and their relation with Coronal Mass Ejections

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...204.3804p&link_type=abstract

American Astronomical Society Meeting 204, #38.04; Bulletin of the American Astronomical Society, Vol. 36, p.713

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Scientific paper

The results of a statistical study of sudden disappearances of solar prominences and filaments observed between January 1 and December 31, 2001 are presented. Our study concentrates on identifying different types of disappearances, while also performing a separate correlation analysis with CMEs. Three classes of events are considered: eruptive (all or some prominence plasma escape the solar surface), active (exhibit important plasma motions but with no portion of the prominence appearing to escape the solar gravitational field) and vanishing (vanish in place, with minor motions or configuration changes). For each type of event we determine the relationship with CMEs detected from data obtained by LASCO C2 and C3 coronographs and other associated coronal activities from EIT Fe XII 195A data. Our results indicate that the different types of disappearances exhibit a different correlation with CMEs, i.e. the eruptive disappearances are associated with CMEs, while the other types are not. The data also shows that the results are affected by the size of events and their relative position with respect to the center of the solar disk. This research was supported under Air Force Office of Sponsored Research grant F49620-02-1-0345.

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