Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.251...46h&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 251, July 1, 1991, p. 46-53.
Astronomy and Astrophysics
Astronomy
41
Radio Sources (Astronomy), Sky Surveys (Astronomy), Astronomical Catalogs, Astronomical Maps
Scientific paper
The section of the sixth Cambridge survey of radio sources is described, which covers the area between the North Polar zone and the zone where delta = 58 deg. Cas A was used as the calibration source, and the mapmaking process and the compilation of the source list are discussed. Sources with certain flux densities are listed if their apparent flux density exceeds the adjusted flux density of a nearby source that is brighter. The integration method, attenuation and ascension corrections, as well as the flux density calculations for the source data are detailed. The reliability of the observed and interpolated data is discussed, and the main source list shows 5421 sources in the region where delta is between 67 and 82 deg, and alpha is from 0 to 24 h. The fields of the survey are shown, and the presentation of the survey is discussed, for which source lists are supplied along with the survey maps.
Baldwin John E.
Hales E. G. S.
Mayer John C.
Warner Peter J.
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