Peak statistics on COBE maps

We perform the statistics of temperature maxima and minima in COBE-DMR 2-year maps. For power-law spectra the surface distribution of peaks implies an amplitude consistent with more conventional analyses of COBE data (for instance, we get Q_{{\rm rms-PS}}=17\pm 3\ \mu K for a spectral index % n=1), but not with the measured quadrupole Q_{{\rm rms}}=6\pm 3\ \mu K. This provides further support for the existence an infrared cutoff in the cosmic spectrum