A deep Westerbork survey of areas with multicolor Mayall 4 M plates. I - The 1412 MHz catalogue, source counts and angular size statistics

Details A deep Westerbork survey of areas with multicolor Mayall 4 M plates. I - The 1412 MHz catalogue, source counts and angular size statistics A deep Westerbork survey of areas with multicolor Mayall 4 M plates. I - The 1412 MHz catalogue, source counts and angular size statistics

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...58....1w&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 58, Oct. 1984, p. 1-37. Sponsorship: Nederlandse Organisatie

Astronomy and Astrophysics

Astronomy

126

Angular Distribution, Astrometry, Astronomical Catalogs, Radio Sources (Astronomy), Size Distribution, Statistical Distributions, Angular Resolution, Cosmology, Data Reduction, Fourier Transformation, Radio Astronomy

Scientific paper

A radio survey has been conducted with the Westerbork Synthesis Radio Telescope for nine fields in four high latitude areas for which deep, multicolor Kitt Peak 4-m plates are available. A total of 471 sources are tabulated; 306 of these form a well defined, complete sample. The influence of the selection criteria on sample completeness is discussed. Angular size distribution has been precisely derived, in virtue of the 3 km resolution obtainable with the present instrument, and a smaller fraction of sources larger than about 20 arcsec is noted for the 1-10 mJy range than for the 10-100 mJy. The 1412 MHz source counts are consistent at different cutoff levels, showing that the statistical corrections for population and resolution bias are reliable. The present counts are consistent with previous 1.4 GHz counts, which are here given for the 1-100,000 mJy flux range.

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