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in creator/contributor: "Mandolesi, N."

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Low-Frequency Measurements of the Cosmic Background Radiation Spectrum

The long-wavelength spectrum of the cosmic background radiation has been measured at five wavelengths (0.33, 0.9, 3.0, 6.3, and 12.0 cm). These measurements represent a continuation of the work reported by Smoot et al. (1983). The combine results have a weighted average of 2.73 {+-} 0.05 K and are consistent with past measurements. They limit the possible Compton distortion of the Cosmic Background Radiation spectrum to less than 8%.

Date: November 1, 1984

Creator: Smoot, G. F.; De Amici, G.; Friedman, S. D.; Witebsky, C.; Sironi, G.; Bonelli, G. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Low Frequency measurment of the Spectrum of the Cosmic BackgroundRadiation

We have made measurements of the cosmic background radiation spectrum at 5 wavelengths (0.33, 0.9, 3, 6.3, and 12 cm) using radiometers with wavelength-scaled corrugated horn antennas having very low sidelobes. A single large-mouth (0.7 m diameter) liquid-helium-cooled absolute reference load was used for all five radiometers. The results of the observations are consistent with previous measurements and represent a significant improvement in accuracy.

Date: June 1, 1983

Creator: Smoot, G. F.; De Amici, G.; Friedman, S. D.; Witebsky, C.; Mandolesi, N.; Partridge, R. B. et al.