We describe the results obtained from the study of a filament eruption associated to a two-ribbon flare, occurred in NOAA AR 9445 on May 5, 2001. We interpret the event in a two-step reconnection scenario. The first reconnection takes place in the lower atmosphere and is due to a slow, but continuous, magnetic flux cancellation near the filament. The second reconnection, which is explosive and takes place in the corona, is caused by the eruption of the filament which triggers a two-ribbon flare. The analysis is based on Hα data acquired by THEMIS operating in IPM mode, Hα data and magnetograms obtained at the Big Bear Solar Observatory, and 171 Å images taken by TRACE....
A process of low-lying magnetic reconnection observed by THEMIS, BBSO and TRACE
Zuccarello, F.Penultimo
Conceptualization
;
2003-01-01
Abstract
We describe the results obtained from the study of a filament eruption associated to a two-ribbon flare, occurred in NOAA AR 9445 on May 5, 2001. We interpret the event in a two-step reconnection scenario. The first reconnection takes place in the lower atmosphere and is due to a slow, but continuous, magnetic flux cancellation near the filament. The second reconnection, which is explosive and takes place in the corona, is caused by the eruption of the filament which triggers a two-ribbon flare. The analysis is based on Hα data acquired by THEMIS operating in IPM mode, Hα data and magnetograms obtained at the Big Bear Solar Observatory, and 171 Å images taken by TRACE....I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
