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|Title:||On the eruption of prominences and disappearance of quiescent filaments|
Gupta, S. S
|Keywords:||Dynamic Stability;Solar Physics;Solar Prominences;Sun;Thermal Stability;Chromosphere;H Alpha Line;Heating;Solar X-Rays|
|Citation:||Solar Physics, Vol. 158, No. 2, pp. 259 - 268|
|Abstract:||We suggest the following heuristic model for the evolution of a quiescent filament. The middle part of the filament rises due to heating, while its ends remain anchored in the chromosphere; and a kink appears in the H alpha filament due to projection and line-of-sight effects. Further, the top segment of the filament rises rapidly above the solar surface 1-2 days before the disappearance of a filament or eruption of a prominence. The top of the filament attains a high temperature due to further heating, thereby becoming invisible in H alpha, giving the impression that the filament has slit into two parts. It is expected that this gap between the H alpha filament can be seen in the observations in high-temperature lines and soft X-rays.|
|Appears in Collections:||IIAP Publications|
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