Stereoscopic Analysis of 31 August 2007 Erupting Prominence

Details Stereoscopic Analysis of 31 August 2007 Erupting Prominence Stereoscopic Analysis of 31 August 2007 Erupting Prominence

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh51a1658l&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SH51A-1658

Astronomy and Astrophysics

Astrophysics

[7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7531] Solar Physics, Astrophysics, And Astronomy / Prominence Eruptions

Scientific paper

The dramatic prominence eruption of 31 August 2007 and the associated CME were well observed by both STEREO spacecraft, separated by 28° at that time. The eruption occurred as the filament reach the West limb as seen by STEREO B; the filament, the coronal cavity and the CME were all clearly observed. We use tie-pointing and triangulation to determine the 3D trajectories of the erupting filament (seen in EUVI and COR1) and the associated CME and cavity (seen in COR1 and COR2) and we compare these trajectories. From the EUVI 304 data, it can be seen that the prominence footpoints change loctions during the early stages of the eruption and, using stereoscopy, we find that the new footpoints correspond to locations of EUVI 171 “endpoint brightenings” discussed by Wang, Muglach and Kleim (ApJ, 2009) as marking the outer edge of the transient coronal holes. Our observations are consistent with their interpretation of the brightenings resulting from magnetic reconnection between the erupting prominence magnetic field and the overlying coronal arcade.

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