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Spectral Characteristics of the 2dFGRS–NVSS Galaxies

Published online by Cambridge University Press:  05 March 2013

C. A. Jackson  and
D. M. Londish
C. A. Jackson
Affiliation:
Research School of Astronomy & Astrophysics, Institute of Advanced Studies, Australian National University, Canberra, ACT 0200, Australia; cjackson@mso.anu.edu.au
D. M. Londish
Affiliation:
School of Physics, University of Sydney, NSW 2006, Australia
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Abstract

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We have analysed the 2dF spectra of a sample of galaxies common to the 2dF Galaxy Redshift Survey (2dFGRS, Colless 1999) and the NRAO VLA Sky Survey (NVSS, Condon et al. 1998). Our sample comprises 88 galaxies selected by Sadler et al. (1999) from 30 2dFGRS fields observed in 1998. In this paper we discuss how this and future, much larger, samples of 2dFGRS–NVSS galaxies can be interpreted via analysis of those galaxies with strong narrow emission lines. Using diagnostic line ratio measurements, we confirm the majority of the eyeball classifications of Sadler et al. (1999), although many galaxies show evidence of being ‘composite’ galaxies—mixtures of AGN plus starburst components.

Keywords

galaxies: evolutiongalaxies: jetquasars: generalradio continuum: galaxies
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Volume 17 , Issue 3 , 2000 , pp. 234 - 240
Copyright
Copyright © Astronomical Society of Australia 2000

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