Long-Wavelength Measurements of the Cosmic Microwave BackgroundRadiation Spectrum

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We have measured the temperature of the cosmic microwave background radiation at wavelengths of 0.33, 3.0, 8.2 and 21.3 cm. These measurements represent a continuation of the work reported by Smoot et al. (1985). The new results have a weighted average of 2.70 {+-} 0.05 K and are consistent with past measurements. They limit the possible distortion of the cosmic microwave background radiation spectrum to less than 6%. The results of all measurements to date are consistent with a Planckian spectrum with temperature 2.74 {+-} 0.02 K spanning a wavelength range of 0.1 to 21 cm.

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Smoot, G.F.; Bensadoun, M.; Bersanelli, M.; pDe Amici, G.; Kogut,A.; Levine, S. et al. February 1, 1987.

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Description

We have measured the temperature of the cosmic microwave background radiation at wavelengths of 0.33, 3.0, 8.2 and 21.3 cm. These measurements represent a continuation of the work reported by Smoot et al. (1985). The new results have a weighted average of 2.70 {+-} 0.05 K and are consistent with past measurements. They limit the possible distortion of the cosmic microwave background radiation spectrum to less than 6%. The results of all measurements to date are consistent with a Planckian spectrum with temperature 2.74 {+-} 0.02 K spanning a wavelength range of 0.1 to 21 cm.

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  • Journal Name: Astrophysical Journal Letters; Journal Volume: 317; Related Information: Journal Publication Date: 1987

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  • Report No.: LBL--23014
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 893043
  • Archival Resource Key: ark:/67531/metadc875422

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  • February 1, 1987

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  • Sept. 21, 2016, 2:29 a.m.

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  • Sept. 30, 2016, 1:58 p.m.

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Smoot, G.F.; Bensadoun, M.; Bersanelli, M.; pDe Amici, G.; Kogut,A.; Levine, S. et al. Long-Wavelength Measurements of the Cosmic Microwave BackgroundRadiation Spectrum, article, February 1, 1987; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc875422/: accessed August 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.