The spectrum of the cosmic microwave background at a frequency close or below 1 GHz is currently known with a large uncertainty. The difficulties arise both from the calibration technique and the presence of large foreground signals. In this spectral region large deviations from the Planck distribution are still permitted. In this paper the current status of our knowledge is described. Experiments involved and techniques employed are also discussed
Gervasi, M. (1999). The spectrum of Cosmic Microwave Background at low frequency. Intervento presentato a: 3K Cosmology from Space, L'Aquila, Italy [10.1016/S1387-6473(99)00013-5].
The spectrum of Cosmic Microwave Background at low frequency
GERVASI, MASSIMO
1999
Abstract
The spectrum of the cosmic microwave background at a frequency close or below 1 GHz is currently known with a large uncertainty. The difficulties arise both from the calibration technique and the presence of large foreground signals. In this spectral region large deviations from the Planck distribution are still permitted. In this paper the current status of our knowledge is described. Experiments involved and techniques employed are also discussed
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