Fig. 4. Temperature (left panel) and polarization (right panel) power spectra for the neutrino oscillation target model considered here (see also the text) compared to astrophysical component power spectra: the galactic temperature fluctuations at moderate galactic latitudes, sum of synchrotron, free-free and dust fluctuations, and the extragalactic source temperature fluctuations modelled as in Toffolatti et al. (1998) and De Zotti et al. (1999a) and the polarization fluctuations from galactic synchrotron and dust emission and separately from extragalactic radiosources and infrared sources modelled according to De Zotti et al. (1999b) and references therein. We report also the white noise nominal power spectrum for LFI and MAP, taking into account the effect of resolution loss at high l due to the beam convolution.