High velocity Doppler shift observations of 10 MK flare plasma
Davina Innes, Tongjiang Wang
With the SUMER spectrometer on SOHO, we have observed Doppler
shifts in 10 MK flare lines. The shifts have been associated
with (i) a fast outward moving coronal shock wave seen at flare
onset in high time cadence coronagraph data, (ii) the top of
a post flare supra-arcade at the time of hard X-ray emission
and X-ray downflows and (iii) oscillating post flare loops.
All these observations were made in sit-and-stare in the
corona above flare sites. This poster presents a summary of
the SUMER observations, discusses the limitations of SOHO-SUMER
observations and the hugh advantages offered by the Solar-B observatory.
Correspondence
Davina Innes (innes@mps.mpg.de), Max-Planck-Institut fuer Sonnensystemforschung
presentation
poster