Analysis of a Flare Associated with a Slow CME and a propagating magnetoacoustic wave. |
tothova danica, MPI |
Davina Markiewicz-Innes, Sami K. Solanki |
MPI für Sonnensystemforschung |
| Abstract |
| We analyse the post flare loop dynamics of an M2.5 flare that occurred at the
limb of the Sun on the 16th of April 2002. The observations have been made
with the Solar Ultraviolet Measurements of Emitted Radiation (SUMER)
spectrometer onboard of Solar Heliospheric Observatory (SoHO) in Fe XIX
1118.1 Ã… with the formation temperature above 6 MK and with the Transition
Region and Coronal Explorer (TRACE) in the 195 Ã… passband. TRACE detected a
lifting flux rope which gave rise to a slow coronal mass ejection (CME)
associated with a propagating intensity fluctuation.?High blue and red
Doppler shifts (up to 600 km/s) were seen by SUMER shortly before and after
the rising loop system passed the slit, oscillating in phase with the TRACE
intensity, suggesting a propagation of a magnetoacoustic wave. |