Extended Radio Sources. I.

Abstract

Twenty·one "extended sources" from the catalogues of Mills, Slee, and Hill have been observed with a 14' arc pencil beam at 1400 Mc/s. Some appear to be irregularities in the galactic radio emission, but most, especially those at high galactic latitudes, are resolved into groups of sources of small angular diameter. Maps of the regions are shown, and so far as possible radio spectra of the component sources have been assembled. An optical identification is given for the principal component of MSH 00-017 (3C29), and tentative identifications are suggested for some other sources.