HR: 0800h
AN: SH32A-0773    [Abstracts]
TI: The source region magnetic conditions of solar eruption events observed by multi spacecraft
AU: * Li, Y
EM: yanli@ssl.berkeley.edu
AF: Space Science Laboratory University of California, Berkeley, 7 Guass Way, Berkeley, CA 94720, United States
AU: Lynch, B J
AF: Space Science Laboratory University of California, Berkeley, 7 Guass Way, Berkeley, CA 94720, United States
AU: Welsch, B T
AF: Space Science Laboratory University of California, Berkeley, 7 Guass Way, Berkeley, CA 94720, United States
AU: Stenborg, G A
AF: The Catholic University of America for Solar Physics and Space Weather / Physics Department, NASA/GSFC, Mail Code 671.1, Bldg. 26, Room 001., Greenbelt, MD 20771, United States
AU: Vourlidas, A
AF: Code 7663V, NRL, 4555 Overlook AVE, SW, Washington, DC 20375, United States
AU: Luhmann, J G
AF: Space Science Laboratory University of California, Berkeley, 7 Guass Way, Berkeley, CA 94720, United States
AU: Fisher, G H
AF: Space Science Laboratory University of California, Berkeley, 7 Guass Way, Berkeley, CA 94720, United States
AB: The magnetic connectivity, topology and properties including magnetic flux changes, magnetic gradient and flow field from LCT of three active regions will be derived from photospheric magnetograms and synoptic maps to understand the initiation condition of eruptions/flares originated from the regions and the potential impact on the heliosphere and magnetosphere. The three active regions are AR10930 in December 2006 and AR10953 and AR10956 in May 2007. AR10930 and AR10956 are responsible for the two Magnetic Clouds observed by IMPACT on STEREO A/B during the first half year of the mission. The associated coronal CME/flare/filament activities will be studied using solar imaging data from SOHO, STEREO, BBSO and HINODE. We will analyze photospheric magnetograms and synoptic maps from MDI and GONG. Vector magnetic field observations from HINODE and SOLIS are currently being sought and if available will be value added information for initiation of the eruptions. PFSS model field line tracing based on the synoptic maps gives the magnetic topology and connectivity in the active region and the global large scale field. The large scale field results including regions with closed arcades and fields open to the interplanetary space give the context and relative location of the source region of the eruptions.
DE: 7513 Coronal mass ejections (2101)
DE: 7519 Flares
DE: 7524 Magnetic fields
DE: 7529 Photosphere
DE: 7531 Prominence eruptions
SC: SPA-Solar and Heliospheric Physics [SH]
MN: 2007 Fall Meeting