Dynamics and evolution of the post-flare loops of June 1992 |
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| Authors: | JE Wiik L Van Driel-Gesztely B Schmieder P Heinzel |
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| Institution: | aITA, University of Oslo, N-0315 Blindern, Oslo 3, Norway;bObservatoire de la Côte d' Azur, F-06304 Nice Cedex-4, France;cObservatoire de Paris, D.A.S.O.P., F-92195 Meudon France;dKonkoly Observatory, Budapest, Pf. 67, H-1525, Hungary;eAstronomical Institute, CZ-25165 Ond?ejov, Czech Republic |
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| Abstract: | Observations in X-rays (Yohkoh/SXT) and in H of a system of post-flare loops which developed after a flare on 25 June 1992 provide a unique set of data for a study of the relationship between the hot and cool post-flare loops as they evolve. Through a study of the magnetic configuration in which the flare occurred, we are able to reconstruct the true, 3D geometry of the loops. We derive the bulk-flow velocities along the loop as a function of height using Doppler velocities and the results from the loop reconstruction. We also provide a set of relative altitude data. These results are used to check the validity of the reconnection model in the frame of the cooling time needed to cool X-ray loops to H temperature. |
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