HR: 09:15h
AN: SH41B-05    [Abstracts]
TI: Two contrasting events from multiple viewpoints
AU: * mcateer, r
EM: j.mcateer@helio.gsfc.nasa.gov
AF: NASA / GSFC, CUA, rm 177, Bldg21, NASA/GSFC, Greenbelt, md 20771, United States
AU: Davilla, J
EM: Joseph.M.Davila@nasa.gov
AF: NASA / GSFC, Bldg21, NASA/GSFC, Greenbelt, MD 20771, United States
AU: St. Cyr, C
EM: Chris.StCyr@nasa.gov
AF: NASA / GSFC, Bldg21, NASA/GSFC, Greenbelt, MD 20771, United States
AB: Two contrasting events are described by studying data from both STEREO and earth-Sun line of sight instruments. In each case the image registration and alignment issues are addressed and the specific science benefits of the separation angles of the three viewpoints are highlighted. In the first event (25-Jan-2007), a small flare in a slowly evolving active region ejecting a fast moving CME is studied using EUVI/COR1/COR2 from both STEREO spacecraft, with additional information from EIT/LASCO and RHESSI.The benefits of small spacecraft separation are exploited as pre-CME EUVI (behind) images show significant loop 'opening', with a RHESSI thermal energy source detected prior to the post-flare loops cooling thru the EUVI passbands. The CME passes is studied as it passes thru COR1/COR2 and LASCO, and is followed by a slow moving thermal energy source in its wake. In the second event (1-May-2007), a rapidly rotating (but non-erupting) filament as the source of a slowly rising, non radial, feature is studied using both STEREO spacecraft, SOHO and the Mk-IV coronagraph. The benefits of larger spacecraft separation are exploited to give three plane of sky height time plots to determine the 'actual' velocity profile of the slow moving feature. The differences in EIT and EUVI are used to study the filament rotational motion in detail
DE: 7509 Corona
DE: 7513 Coronal mass ejections (2101)
DE: 7514 Energetic particles (2114)
DE: 7531 Prominence eruptions
DE: 7984 Space radiation environment
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting