The Temperature of the Cosmic Microwave Background Radiation at a Frequency of 10 GHz
Abstract
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 repeat- ed 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.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- February 1988
- DOI:
- Bibcode:
- 1988ApJ...325....1K
- Keywords:
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- Cosmology;
- Relic Radiation;
- Atmospheric Temperature;
- Calibrating;
- Microwave Radiometers;
- Temperature Measurement;
- Space Radiation;
- COSMIC BACKGROUND RADIATION;
- COSMOLOGY