A model of the solar radio slowly varying component

Our model uses the latest EUV data on the chromosphere-corona transition region. We take the three physical parameters (electron temperature and density and magnetic field) to be functions both of the height above the photosphere and the distance from the axis of our unipolar model. We consider both the gyroresonance radiation and the bremsstrahlung. Our calculated flux and polarization spectra peak at λ = 6 cm and 3 cm respectively, in general agreement with observations. Some features in the spatial distribution of the flux and polarization were obtained, which may be compared with future high-resolution data. We found that in the SVC radiation, the gyroresonance emission is all-important, while the contribution from the reflection of the extraordinary wave is almost nil. These results are directly opposite to the conclusions by Shimabuburo et al./1/.