The Very Large Array

Details The Very Large Array The Very Large Array

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apjs...44..151t&link_type=abstract

Astrophysical Journal Supplement Series, vol. 44, Oct. 1980, p. 151-167.

Astronomy and Astrophysics

Astronomy

377

Antenna Arrays, Antenna Design, Astronomical Observatories, Microwave Antennas, Radio Astronomy, Very Large Array (Vla), Computer Techniques, Electronic Control, Image Processing, Interferometry, Mapping, Sky Brightness, Steerable Antennas

Scientific paper

The Very Large Array in New Mexico can map the sky at cm and dm wavelengths with resolution of tenths of arcsec and sensitivity of 100 microjanskys. The 27 movable antennas distributed in a 3-armed array permit the resolution to be varied in 4 steps; the most distant antennas are located 0.59, 1.95, 6.4, or 21 km from the intersection points of the 3 arms. The electronic receiving system provides a choice of 4 frequency bands ranging from 1.34 to 24 GHz; the correlator system operates in a continuum or spectral line mode. Transformation of the visibility data to obtain radio brightness distributions is carried out in a separate asynchronous computer system.

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