A Phenomenological Model for disparitions brusques followed by Flarelike Chromospheric Brightenings, II: Observations in Active Regions

An early and interesting model for "disparitions brusques," filament disappearances, which still makes some sense. Here the "melon" reference would be to Kippenhahn-Schlueter. The gravitational potential energy stored in the corona by the filament mass would wind up in the footpoints of the filament-supporting arcade, assuming it lost its structure. Nowadays the filament mass is known not to sit still in a static dipped field configuration, but the basic ideas may still remain valid. This model would be most suitable for a quiet-Sun "flare" event, rather than an energetic active-region flare. But are they really different physically? The important observational question would probably be one of timing and energy partition.

      Since the Hyder paper appeared, his name has gradually been identified with the phenomenon: "Hyder flares" may be replacing "disparitions brusques," possibly for reasons of pronunciation that may be difficult for some isolated linguistic communities.