Abstract

The radio and X-ray emissions originate at dierent layers of solar corona. The study of such emission using flux modulation method produces valuable information about the solar rotation with respect to latitude of the corona. This paper summarizes the important results of our study on radio flux data at 2.8 GHz, radio images taken at Nobeyama Radioheliograph at 17 GHz and soft X-ray images observed through Yohkoh/SXT spacecraft.