DOES THE PHOTOSPHERIC CURRENT TAKE PART IN THE FLARING PROCESS

On the basis of vector magnetograms of two flaring active regions (ARs ) we analyze the scaling behavior of the current helicity H-c in the p hotosphere. The signed measure so obtained possesses a well pronounced sign-singularity in the range of scales from more than 10(4) Km down to the resolution limit of observations. We found that during the flar ing process there is a signature both of a reorganization of the curre nt helicity in the photosphere and of a strong magnetic energy dissipa tion of the photospheric magnetic field.