The 7C survey of radio sources at 151 MHz — a region covering RA 9h to 16h and Dec. 20° to 35°

Abstract

The Cambridge Low Frequency Synthesis Telescope has been used at 151 MHz to survey a region of 1393 deg2, in the range RA 9h–16h, Dec. 20°–35°, with an angular resolution of 108 × 108 cosec δ arcsec2. The rms noise on the maps is, in general, ∼ 35–55 mJy beam−1, but varies considerably and exceeds this in some areas. We have extracted sources with a signal-to-noise ratio > 5.5, totalling 5526, and present a catalogue of their positions and flux densities.