No evidence for a `redshift cut-off' for the most powerful classical double radio sources

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dc.creatorJarvis, Matt J.
dc.creatorRawlings, Steve
dc.creatorWillott, Chris J.
dc.creatorBlundell, Katherine M.
dc.creatorEales, Steve
dc.creatorLacy, Mark
dc.date1999-08-10
dc.date.accessioned2026-07-07T02:32:47Z
dc.date.available2026-07-07T02:32:47Z
dc.descriptionWe use three samples (3CRR, 6CE and 6C*) to investigate the radio luminosity function (RLF) for the `most powerful' low-frequency selected radio sources. We find that the data are well fitted by a model with a constant co-moving space density at high redshift as well as by one with a declining co-moving space density above some particular redshift. This behaviour is very similar to that inferred for steep-spectrum radio quasars by Willott et al (1998) in line with the expectations of Unified Schemes. We conclude that there is as yet no evidence for a `redshift cut-off' in the co-moving space densities of powerful classical double radio sources, and rule out a cut-off at z < 2.5.
dc.descriptionTo appear in `The Hy-redshift universe: Galaxy formation and evolution at high redshift' eds. A.J. Bunker and W.J.M. van Breugel
dc.identifierhttps://arxiv.org/abs/astro-ph/9908106
dc.identifierhttp://arxiv.org/abs/astro-ph/9908106
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14588
dc.subjectAstrophysics
dc.titleNo evidence for a `redshift cut-off' for the most powerful classical double radio sources
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