Belets'kyj S. Results of solar chromosphere recearch in D3 and 1083 nm lines

The dissertation is devoted to the study of the solar chromosphere from the spectroheliograms recorded in HeI 1083 nm line and from the slitless cinematographic observations of solar eclipses in D3 helium line. For the first time the chromospheric D3 surface brightness distribution along the whole observed part of the solar limb is received from the results of two eclipse observations. The maximum of the chromosphere brightness distribution near the limb was for the first time discovered to be located at the heights less than 500 km for a considerable part of the solar limb. From the study of the 1083 nm spectroheliograms the solar wind from the coronal holes was shown to accelerate from the middle chromosphere. The results of observations of 3 flares have shown that a relation between the flare regions in the chromosphere and the "hidden" activity centres located in the corona can be found from the 1083 nm line observations.