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Observations of 384 Radio Sources at a Frequency of 158 Mc/s with a Long Baseline Interferometer

1962; Oxford University Press; Volume: 124; Issue: 6 Linguagem: Inglês

10.1093/mnras/124.6.477

1365-2966

L. R. Allen, Ben Anderson, R. G. Conway, H. P. Palmer, V. C. Reddish, Bethany Rowson,

Astronomical Observations and Instrumentation

The angular sizes of 384 radio sources have been investigated by means of interferometric measurements at 158 Mc/s. For each source, observations were made at transit with one or more of four values of aerial separation, in the range 2 200 to 61 100 wavelengths. All the baselines had directions close to east-west. The problems of calibrating observations at long baselines are discussed. It is estimated that the combined r.m.s. errors in fringe visibility do not exceed 50 per cent.