HIGH TEMPORAL AND SPATIAL-RESOLUTION OBSERVATIONS OF A SOLAR-FLARE ON JUNE 7, 1991

We present some preliminary results on a small flare observed at the NSO-Sacramento Peak with very good spatial resolution (.6''-.7''). The flare occurred on June, 7 1991 at approximately 13:43 UT in the NOAA region 6659 and has been observed by the COMPTON BATSE experiment in the 25-50 KeV range. A very complex velocity pattern is found for chromospheric and metallic lines: a small region (5'' wide) presents a strong blue-shifts in all these lines, lasting through the flare, while, only in the Ca II-K and H(delta) lines, we find a zone (again approximately 5'' wide) of strong red asymmetries contemporary to the hard X-rays spikes. These observations show the importance of having high spatial and temporal resolution measurements in the study of flares.