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Radio Source Evolution Derived from Low Frequency Surveys

Published online by Cambridge University Press:  26 May 2016

C.A. Jackson  and
J.V. Wall
C.A. Jackson
Affiliation:
Research School of Astronomy & Astrophysics, The Australian National University, Weston Creek, ACT 2611, Australia
J.V. Wall
Affiliation:
Department of Astrophysics, University of Oxford, Nuclear and Astrophysics Laboratory, Keble Road, Oxford 0X1 3RH, UK

Abstract

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We find simple parametric models to describe the space density evolution of radio-loud AGN, treating FRI and FRII radio galaxies separately as the two parent populations in our dual-population unified scheme. In this we use low frequency radio data (v < 500 MHz), where radio samples are unbiased by Doppler beaming. Incorporated into this latest analysis is a new determination of the local radio luminosity function at 1.4 GHz from galaxies common to both the 2dFGRS and NVSS surveys.

Type
Part 1: Radio Source Surveys and Cosmology
Information
Symposium - International Astronomical Union , Volume 199: The Universe at Low Radio Frequencies , 2002 , pp. 50 - 53
Copyright
Copyright © Astronomical Society of the Pacific 2002 

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