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Observations of Extended Radio Sources Using a Multiple-beam Technique
1979
International Astronomical Union Colloquium
The limiting sensitivity for conventional single-dish radio continuum observations of extended objects at wavelengths of a few cm is set mainly by weather; for much of the time a varying component of atmospheric attenuation, and hence thermal emission, causes deviations in the response of the receiver far in excess of any deviations due to receiver noise or receiver instabilities.
doi:10.1017/s0252921100075011
fatcat:hdmh7hkewbhatbtukbckxfwnhy