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Radio Sources in the 2dF Galaxy Redshift Survey. I. Radio source populations1

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Radio Sources in the 2dF Galaxy Redshift Survey. I. Radio source populations1

Elaine M. Sadler 1 - V.J. McIntyre 1 - C.A. Jackson 1 - R.D. Cannon 2

1 School of Physics, University of Sydney, NSW 2006, Australia
ems@physics.usyd.edu.au, vjm@physics.usyd.edu.au, cjackson@physics.usyd.edu.au

2 Anglo-Australian Observatory, PO Box 296, Epping, NSW 2121, Australia
rdc@aaoepp.aao.gov.au

Abstract:

We present the first results from a study of the radio continuum properties of galaxies in the 2dF Galaxy Redshift Survey, based on thirty 2dF fields covering a total area of about 100deg2. About 1.5% of galaxies with

$b_{\rm J} < 19.4$ mag. are detected as radio continuum sources in the NRAO VLA Sky Survey (NVSS). Of these, roughly 40% are star-forming galaxies and 60% are active galaxies (mostly low-power radio galaxies and a few Seyferts). The combination of 2dFGRS and NVSS will eventually yield a homogeneous set of around 4000 radio-galaxy spectra, which will be a powerful tool for studying the distribution and evolution of both AGN and starburst galaxies out to $z\sim0.3$.

Keywords:

radio continuum: galaxies, galaxies: distances and redshifts, galaxies: active, galaxies: starburst



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Amelia Ortiz-Gil
1999-09-01
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