Measurements of Source Strengths at 29·9 MHz

Abstract

A survey of the region of sky between declinations _4° and -64° has been completed at a frequency of 29·9 MHz at the Fleurs Radio Observatory of the School of Electrical Engineering, University of Sydney. Aperture synthesis has been used to form a beam of 0°.8 diameter. The flux densities of 175 sources have been measured and referred to absolute measurements of certain strong sources. Most of the source fluxes are consistent with an extrapolation of the power law spectra determined from high frequency measurements but a few show significant deviations. Absorption by the interstellar medium of sources at low galactic latitudes has only been observed for I b I < 3° and appears to be negligible at higher latitudes.