Tracing Ca K grains through the chromosphere into the transition regionThe propagation of Ca K grains from the lower chromosphere into the transition region is studied. Data from the solar ultraviolet measurement of emitted radiation (SUMER) and the VTT at Inzana (Tenerife) instruments were used. The purpose of the study was to investigate the formation of shock waves in the chromosphere. The most dynamical features in the chromosphere defined by the bright Ca II K emission in the filtergrams and spectrograms were analyzed.
Document ID
19990028145
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Steffens, S. (Wuerzburg Univ. Germany)
Deubner, F.-L. (Wuerzburg Univ. Germany)
Fleck, B. (European Space Agency Washington, DC United States)
Wilhelm, K. (Max-Planck-Inst. fuer Aeronomie Katlenburg-Lindau Germany)