The temperature of the cosmic microwave background radiation at a frequency of 10 GHz

Details The temperature of the cosmic microwave background radiation at a frequency of 10 GHz The temperature of the cosmic microwave background radiation at a frequency of 10 GHz

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...325....1k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 325, Feb. 1, 1988, p. 1-15. ISTRA-supported research.

Astronomy and Astrophysics

Astrophysics

28

Cosmology, Relic Radiation, Atmospheric Temperature, Calibrating, Microwave Radiometers, Temperature Measurement

Scientific paper

We have measured the temperature of the cosmic microwave background radiation (CMBR) at a frequency of 10 GHz (wavelength 3.0 cm) as part of a larger effort to determine the spectrum of the CMBR in the Rayleigh-Jeans region. The instrument used is a superheterodyne Dicke-switched radiometer. We have repeated the measurement over four summers with successively improved techniques and equipment. Our best estimate of the CMBR thermodynamic temperature at 10 GHz is 2.61 ± 0.06 K, where the error estimate is a 68% confidence level limit.

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