SOLAR-FLARE SURGES IN RELATION TO ACTIVE PROMINENCES AND SUNSPOTS

A study has been made of flare surges (FS) after correlating them with prominences and sunspots. Results obtained are: (i) the duration of the 88% events lies between 0-40 min; (ii) in most cases the distance between FS and filaments ranges from 0.03R0 to 0.12R0 whereas that between FS and sunspots ranges from 0.05R0 to 0.25R0; (iii) there are several active regions which can produce sympathetic FS; and (iv) the number of FS from a particular sunspot group is proportional to the number of X-ray flares from the same active region.