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Measurement of the 3 K Cosmic Background Noise in the Far Infrared
Published online by Cambridge University Press: 04 August 2017
Abstract
Quantum fluctuations of the cosmic background have been measured in the 900 to 2000 micron range (H.P.B.W.) by means of a balloon-borne correlator operating between 5 and 150 Hz. Preliminary results indicate an upper limit √<dP2> ≤ 2.1 × 10−17 watt/(cm2 srad Hz)1/2, corresponding to the noise of a blackbody at a temperature T ≤ 3.1 K at 1σ.
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- Copyright © Reidel 1983
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