Physics
Scientific paper
Mar 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002esasp.477..147m&link_type=abstract
In: Proceedings of the Second Solar Cycle and Space Weather Euroconference, 24 - 29 September 2001, Vico Equense, Italy. Editor:
Physics
Solar Flares, Sodium Lines, Hα
Scientific paper
At the Kanzelhöhe Solar Observatory, Hα images are currently obtained simultaneously with sets of intensity, velocity and longitudinal magnetic images in the sodium D lines. Many flares have been detected. The preliminary results of the analysis suggest the events to occur at heights in the solar atmosphere below 1100 km, where the canopy magnetic lines stressed by the photospheric motions can reconnect. The penetration of the downflowing plasma jets is investigated in order to justify the solar background in the photospheric intensity-velocity phase spectrum.
Andretta Vincenzo
Cacciani Alessandro
Hanslmeier Arnold
Messerotti Mauro
Moretti Pier Francesco
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