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Peak statistics on COBE maps

R. Fabbri·S. Torres
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Abstract

We perform the stastistics 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 $Q_{\rm rms-PS}=17\pm 3\ μ$K for a spectral index $% n=1),$ but not with the measured quadrupole $Q_{\rm rms}=6\pm 3\ μ$K. This provides further support for the existence an infrared cutoff in the cosmic spectrum.

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R. Fabbri, S. Torres. 1995-08-30. Peak statistics on COBE maps. https://arxiv.org/abs/astro-ph/9508143

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