A Measurement of Excess Antenna Temperature at 4080 Mc/s.

Details A Measurement of Excess Antenna Temperature at 4080 Mc/s. A Measurement of Excess Antenna Temperature at 4080 Mc/s.

Jul 1965

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1965apj...142..419p&link_type=abstract

Astrophysical Journal, vol. 142, p.419-421

Astronomy and Astrophysics

Astronomy

684

Microwave Background, Cosmic Background Radiation

Scientific paper

Measurements of the effective zenith noise temperature of the 20-foot horn-reflector antenna (Crawford, Hogg, and Hunt 1961) at the Crawford Hill Laboratory, Holmdel, New Jersey, at 4080 Mc/s have yielded a value of about 3.5 K higher than expected. This excess temperature is, within the limits of our observations, isotropic, unpolarized, and free from seasonal variations (July, 1964 - April, 1965). A possible explanation for the observed excess noise temperature is the one given by Dicke, Peebles, Roll, and Wilkinson (1965) in a companion letter in this issue.

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