Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977mnras.181..547w&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 181, Dec. 1977, p. 547-561.
Astronomy and Astrophysics
Astronomy
8
Astronomical Catalogs, Position (Location), Radiant Flux Density, Radio Sources (Astronomy), Astronomical Maps, Histograms, Tables (Data), Telescopes
Scientific paper
The 5C 9 survey, made with the One-Mile telescope at Cambridge, has a field center at right ascension 05 hr 00 min, declination + 88 deg 30 min (1950.0). It covers an area of about 4 deg in diameter at 408 MHz to a limiting flux density of 20 mJy and a concentric area about 1 deg in diameter at 1407 MHz. The survey was undertaken to provide flux densities for a study of the distribution of spectral indices of weak radio sources near the North Celestial Pole; the positions and flux densities of 214 sources are listed. The source counts are consistent with those derived from previous 5C surveys.
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