HR: 08:30h
AN: SH41B-02 [Abstracts]
TI: Stereoscopic Analysis of CME-related Coronal Activity using STEREO/SECCHI Observations
AU: * Liewer, P C
EM: Paulett.Liewer@jpl.nasa.gov
AF: Jet Propulsion Laboratory/Caltech, MS 16-506, Pasadena, CA 91109, United States
AU: DeJong, E M
EM: eric.dejong@jpl.nasa.gov
AF: Jet Propulsion Laboratory/Caltech, MS 16-506, Pasadena, CA 91109, United States
AU: Hall, J R
EM: jeffrey.r.hall@jpl.nasa.gov
AF: Jet Propulsion Laboratory/Caltech, MS 16-506, Pasadena, CA 91109, United States
AU: Braswell, S J
EM: shaneenb@gmail.com
AF: Jet Propulsion Laboratory/Caltech, MS 16-506, Pasadena, CA 91109, United States
AU: Thompson, W T
EM: William.T.Thompson.1@gsfc.nasa.gov
AF: Adnet Systems, Inc., 7515 Mission Drive, Lanham, MD 20706, United States
AU: Howard, R
EM: howard@cronus.nrl.navy.mil
AF: Naval Research Laboratory, 4555 Overlook Ave SW, Washington DC, 20375, United States
AB:
In May 2007, STEREO/SECCHI observed a series of coronal mass ejections (CMEs). Here we present results
from an analysis SECCHI and other observations to study the relationship between the low-corona flaring activity,
as viewed stereoscopically by SECCHI's ultraviolet imager EUVI, and the CMEs observed by the SECCHI
coronagraphs. Activity observed includes prominence activation, eruption and ejection and post-flare loop arcade
formation. For several May CME events, we will show the EUVI flaring activity and the corresponding GOES X-ray
flare event that is most closely associated with the CME initiation. In some cases, the ejecta can be seen
stereoscopically (in 3D) as it crosses the solar disk, allowing a clear identification with the CME material
observed off the disk by the SECCHI/COR1 coronagraphs. During this period, the STEREO A and B spacecraft
had reached sufficient separation (>6 degrees) to apply stereoscopic analysis to simultaneous EUVI images
from the two spacecraft. We will report results of 3D reconstruction of flaring coronal loops and prominences
using "tiepointing" and stereoscopy (aka triangulation). This work addresses STEREO's science objective: to
understand the causes and evolution of coronal mass ejections.
DE: 7509 Corona
DE: 7513 Coronal mass ejections (2101)
DE: 7519 Flares
DE: 7531 Prominence eruptions
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting