The source region magnetic conditions of solar eruption events observed by multi spacecraft

Details The source region magnetic conditions of solar eruption events observed by multi spacecraft The source region magnetic conditions of solar eruption events observed by multi spacecraft

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh32a0773l&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SH32A-0773

Physics

7513 Coronal Mass Ejections (2101), 7519 Flares, 7524 Magnetic Fields, 7529 Photosphere, 7531 Prominence Eruptions

Scientific paper

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.

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