HR: 0800h
AN: SH21B-0414    [Abstracts]
TI: Doing Science with the VSO: Signatures of CME Initiation
AU: * Davey, A R
EM: ard@boulder.swri.edu
AF: Southwest Research Institute, 1050 Walnut St, Suite 400, Boulder, CO 80302 United States
AU: Wills-Davey, M
EM: meredith@boulder.swri.edu
AF: Southwest Research Institute, 1050 Walnut St, Suite 400, Boulder, CO 80302 United States
AU: Gurman, J B
EM: gurman@gsfc.nasa.gov
AF: NASA Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Code 682.3, Greenbelt, MD 20771 United States
AU: Bogart, R
EM: rick@rick.stanford.edu
AF: Stanford University, Dept. of Physics - HEPL, Stanford, CA 94305 United States
AU: Tian, K Q
EM: ktian@stanford.edu
AF: Stanford University, Dept. of Physics - HEPL, Stanford, CA 94305 United States
AU: Martens, P
EM: pmartens@spd.aas.org
AF: Montana State University, Dept. of Physics, Bozeman, MT 59717 United States
AU: Yoshimura, K
EM: yoshimura@physics.montana.edu
AF: Montana State University, Dept. of Physics, Bozeman, MT 59717 United States
AU: Hill, F
EM: hill@noao.edu
AF: National Solar Observatory, 920 N. Cherry Ave, Tucson, AZ 85726 United States
AU: Suarez-Sola, I
EM: igor@noao.edu
AF: National Solar Observatory, 920 N. Cherry Ave, Tucson, AZ 85726 United States
AU: Hourcl‚, J
EM: oneiros@grace.nascom.nasa.gov
AF: NASA Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Code 682.3, Greenbelt, MD 20771 United States
AU: Dimitoglou, G
EM: george@esa.nascom.nasa.gov
AF: NASA Goddard Space Flight Center, Laboratory for Astronomy and Solar Physics, Code 682.3, Greenbelt, MD 20771 United States
AU: Wampler, S
EM: swampler@noao.edu
AF: National Solar Observatory, 920 N. Cherry Ave, Tucson, AZ 85726 United States
AB: The Virtual Solar Observatory (VSO) was designed to simplify and unify access to solar physics data. It provides a single interface to a broad range of data types and sources which previously would have required considerable effort to collect one by one. By combining access to online data sources with published scientific catalogs, the VSO can facilitate new science. This study seeks to investigate whether signatures of coronal mass ejection (CME) initiation can be used to constrain CME initiation models. We selected events from the SOHO/LASCO CME catalog, generated a time window between the calculated CME ``start time" and the first observation of the CME in LASCO C2, and examined EIT ``CME Watch" and H-alpha observations identified by a VSO query as falling in the specified time windows. We prioritized the EUV data by selecting those events for which GOES data indicated a flare, and identified flare sites and dimming regions in the EUV data, with the aim of more precisely determining CME initiation locations and times. In addition, we used H-alpha data to investigate CME's associated with by filament eruptions. The results allow us to calculate minimum acceleration rates, and determine correlations between coronal structures, ejection events, and acceleration rates. We use these correlations in turn to identify viable CME initiation mechanisms.
UR: http://virtualsolar.org/docs/AGU200412/davey.html
DE: 7513 Coronal mass ejections
DE: 7519 Flares
DE: 7594 Instruments and techniques
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2004 AGU Fall Meeting