A final non-redundant catalogue for the 7C 151-MHz survey

Details A final non-redundant catalogue for the 7C 151-MHz survey A final non-redundant catalogue for the 7C 151-MHz survey

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007mnras.382.1639h&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Volume 382, Issue 4, pp. 1639-1642.

Astronomy and Astrophysics

Astronomy

15

Catalogues, Surveys, Radio Continuum: General

Scientific paper

We present a final unified catalogue for the 7C survey at 151 MHz with resolution 70 × 70cosec(δ)arcsec2. This has been constructed by amalgamating the existing catalogues derived from individual fields imaged at this resolution and eliminating redundancy in regions of mutual overlap. This is a non-trivial procedure because the flux in multiple-component sources may be fitted differently on alternative images, owing, for example, to differences in local noise and beam distortion. The final catalogue lists 43683 sources over an area of about 1.7sr. Separate final catalogues have been published for the 7C Galactic Plane survey (7CG) and the lower-resolution survey of the low-declination strip 9h < RA < 16h,20° < Dec < 35°.

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