Models of Polarized and Variable Radio Emission for IDV Source 0917+624
  We examine the power spectra of IDV and show the information, which is to be gained by wavelet analysis of light curves of the quasar 0917+624. Results for total and polarized flux at 11cm are shown. Both interstellar scattering and intrinsic models have difficulties in explaining the 1 day period variations. A theoretical model for the time averaged emission is presented, which provides the basis for the analysis of possible variations. 
T. Beckert, A. Kraus, T. P. Krichbaum, A. Witzel, J. A. Zensus (MPIfR)