Algunas características de los perfiles de la línea K del Ca II en fulguraciones sobre manchas solares

Abstract

From the spectral material obtained in the spectroheliograph of San Miguel, between June 1969 and April 1970, 33 flares with emissions in the umbra and/or penumbra of solar spots have been selected. It has been studied the behaviour of the K line of Ca II. It is indicated a classification of the observed cases. Particularly, in the emission on the umbras it can be noticed a net pick in emission centered in K3, the disappearance of the double inversión K2 and the narrowing of the profile observed in faculas.