5C5 SURVEY OF RADIO-SOURCES

The 5C5 survey, made with the Cambridge One-Mile telescope, covers an area about 4 ° in diameter at 408 MHz centred at α =09h40m, δ =47°,00′ to a limiting flux density of 8.7×10-29Wm-2Hz-1 at the centre, and a concentric area of diameter about 1 ° at 1407 MHz to a limiting flux density of 1.8×10-29Wm-2Hz-1. The positions and flux densities of 230 sources observed at 408 MHz, and of 52 observed at I407 MHz, are listed in Table I, with suggested optical identifications for some of the sources. The flux density and spectral index distributions are similar to those of the earlier 5C surveys and there is no evidence for significant anisotropy in either distribution. New observations of some 5C I sources included in the 5C5 survey show that the flux densities measured in 5C I were in error. © 1975 Royal Astronomical Society.