The "onset" phase in the two ribbon flares

Classical two-ribbon flare models explain the evolution of these type of events after a filament ejection, and the posterior reconnection of the magnetic field lines opened in this process. These models do not take into account the flare onset phase. We analyze the X-ray data obtained by the Hard X-...

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Autores principales: Rovira, M.G., Mandrini, C.H., Hernández, A.M., Machado, M.E.
Formato: Articulo Comunicacion
Lenguaje:Español
Publicado: 1990
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Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/143171
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Sumario:Classical two-ribbon flare models explain the evolution of these type of events after a filament ejection, and the posterior reconnection of the magnetic field lines opened in this process. These models do not take into account the flare onset phase. We analyze the X-ray data obtained by the Hard X-Ray Imaging Spectrometer (3.5 - 30 keV) in two-ribbon flares. During the flare onset phase, we obsreve the presence of coral plasma at 10⁷ K surrounding the active region filament. Our observations are in good agreement with the predictions of recent two-ribbon flares circuit models.