An interferometer for millimeter wavelengths

Details An interferometer for millimeter wavelengths An interferometer for millimeter wavelengths

Aug 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977a%26a....59..379w&link_type=abstract

Astronomy and Astrophysics, vol. 59, no. 3, Aug. 1977, p. 379-385

Astronomy and Astrophysics

Astronomy

21

Microwave Interferometers, Millimeter Waves, Radio Astronomy, Water Masers, Computer Programs, Histograms, Phase Locked Systems, Radio Receivers, Signal Mixing, Wavelengths

Scientific paper

A description is given of the Hat Creek millimeter-wavelength interferometer. It is a two-element aperture-synthesis instrument with the antennas movable along a T-shaped track. The system is designed to operate in the range 1-15 mm either in the continuum or with a 128-channel spectrometer. Good beam patterns may be synthesized at all declinations above about -30 deg, and the mapping resolution is about 1 arcsec at the shortest wavelength. The system is described in some detail with emphasis on the novel aspects. A few early results are shown, including a preliminary map of M 87 and a position for the water maser near CRL 2591.

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