Abstract

AbstractA statistical treatment is given of small‐scale angular fluctuations of cosmic background radiation propagating in FRIEDMANN models with Λ= o. It is assumed that the fluctuations arise from the discrete nature of radiation sources; density inhomogeneities in continuously distributed radiating matter or from variable absorption along different light paths towards the observer. The observable angular correlation function of the intensity fluctuations is expressed in terms of statistical measures of the sources of fluctuations. The rather general formulae are reduced as far as possible without specifying the frequency region.

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