ABOUT HEATING OF THE SOLAR CORONA BY MHD WAVES

Abstract

In the scientific literature, the heating of the solar corona by magneto-hydrodynamic waves, especially Alfven and slow acoustic waves, is widely discussed. The calculations of dierent authors of the energy ux density vary greatly: namely, the energy ux values by Alfven waves by 6 orders of magnitude, slowwaves by 4 orders of magnitude. Some eects aecting the calculated values of the energy flux of these waves are examined in this work. It is shown that the main reason for this is that the value of
non-thermal velocities from observations is not accurately determined since the inclination of movements is not unknown to the direction of the line of sight.