Presenter: Johann Hirzberger
Affiliation: Max-Planck-Institut fuer Sonnensystemforschung
Title: Multi-channel observations of a solar flare
Authors: J. Hirzberger, T. Riethm\" uller, P. Kobel, S.K. Solanki
Form: poster
Abstract: On August 13, 2006 we performed simultaneous observations in Ca~{\sc{ii}}~H, G-band, and Fe~{\sc{i}}~6303~{\AA} of a complex sunspot in NOAA~10904 with the Swedish Solar Telescope (SST) on La Palma, Canary Islands. From spectro-polarimetric scans through the Fe~{\sc{i}} line with the tunable SOUP filter we computed the full Stokes vectors at each pixel of the FOV. At 8:47\,UT a weak flare eruption (GOES class B7.8) was registered in the line core of Ca~{\sc{ii}}~H. We present the changing magnetic field and flow topologies in the underneath lying penumbral photosphere during the flaring phase. The unmatched spatial resolution of SST observations allows detailed simultaneous mapping of chromospheric and photospheric events.
Session: 2. Polarization physics in magnetized media
Presentation
date:
 
Presentation
time: