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The radio background: radio-loud galaxies at high and low redshifts

John Peacock
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Abstract

The majority of this paper is devoted to discrete radio sources, and their consequences for cosmology. Three main issues are considered: (i) what makes a galaxy radio loud?; (ii) what do we know about how the population of radio-loud galaxies has changed with epoch?; and (iii) what can observations of high-redshift radio galaxies tell us about general questions of galaxy formation and evolution? The main conclusion is that radio galaxies are remarkably ordinary massive ellipticals. The high-redshift examples are generally old and red and do not make good candidates for primaeval galaxies.

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John Peacock. 1993-07-12. The radio background: radio-loud galaxies at high and low redshifts. https://arxiv.org/abs/astro-ph/9307019

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