The structure of southern extragalactic radio sources

Details The structure of southern extragalactic radio sources The structure of southern extragalactic radio sources

May 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apjs...80..137j&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 80, no. 1, May 1992, p. 137-203. Research supported by Australian

Astronomy and Astrophysics

Astronomy

99

Extragalactic Radio Sources, Sky Surveys (Astronomy), Astronomical Catalogs, Astronomical Observatories, Red Shift, Southern Sky

Scientific paper

The structure of extragalactic radio sources south of declination -30 deg that have been imaged at 843 MHz with a resolution of 44 arcsec is reported. The sample includes sources noted in the Molonglo Reference Catalogue (MRC) as extended (larger than about 1 arcmin), as well as those noted as multiple, i.e., within 8 arcmin of a neighbor and possibly related. The results of observations of 339 sources with either time-shared or full 12-hr aperture-synthesis observations are given as radio images and a table of flux densities, positions, and sizes for 383 sources. Most of the groups of multiple sources are found to be separate, unrelated sources, as expected, but some are components of larger sources. Some of the sources flagged as extended in the MRC are also groups of unrelated sources, confused in the MRC beam. Such random associates are excluded, and a confirmed MRC extended sample of 193 sources with flux density greater than 0.4 Jy and size greater than 0.5 arcmin is confirmed. The selection effects and completeness for this sample are discussed.

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