Stereoscopic Analysis of STEREO/EUVI Observations of May 19, 2007 Erupting Filament

Details Stereoscopic Analysis of STEREO/EUVI Observations of May 19, 2007 Erupting Filament Stereoscopic Analysis of STEREO/EUVI Observations of May 19, 2007 Erupting Filament

May 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agusmsh23a..04l&link_type=abstract

American Geophysical Union, Spring Meeting 2008, abstract #SH23A-04

Other

7509 Corona, 7513 Coronal Mass Ejections (2101), 7519 Flares, 7531 Prominence Eruptions

Scientific paper

A filament eruption, associated with a B9.5 flare, was observed by the Solar TERrestrial Relations Observatory (STEREO) on May 19, 2007, beginning at about 13 UT in AR10956. Analysis of remote and in situ observations indicate that this event is the most probable source of an interplanetary magnetic cloud observed by the Wind and STEREO B spacecraft on 2007 May 21-22. Here, we use observations from the SECCHI/EUVI telescopes to analyze the behavior of the filament before and during the eruption and to study its relation to other solar signatures of the CME event. At this time, STEREO A and B were sufficiently separated to determine the three- dimensional structure of the filament using stereoscopy. The filament could be followed in SECCHI/EUVI 304 Angstrom stereoscopic data from about 12 hours before to about 2 hours after the eruption. Although the filament has episodes of activity during this period, no dramatic pre-eruption warning signal is seen. Other results from stereoscopic analysis of STEREO/ EUVI data will also be presented. Copyright 2008 California Institute of Technology. Government sponsorship acknowledged.

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