Rausaria, R. R; Aleem, S. M; Sundararaman, K
(Springer Netherlands, 1992-11)
We have studied the evolution of the double-ribbon, spotless flare of 21 February, 1992, using Kodaikanal Hagr and Kf1 observations. The analysis of the data shows that the Hagr filament underwent a large change in shear ...