A single population scheme for FR I and FR II radio galaxies

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dc.creatorSnellen, Ignas
dc.creatorBest, Philip
dc.date2002-11-27
dc.date.accessioned2026-07-07T10:31:31Z
dc.date.available2026-07-07T10:31:31Z
dc.descriptionThe presence of two distant FR I radio galaxies in the Hubble Deep Field plus Flanking Fields indicates that the number density of these objects is about 10-50 times higher at z>1 than in the local universe. This is in strong contrast with the idea that FR Is undergo no cosmological evolution. We advocate that the cosmological evolution of radio sources may be independent of FR class, and instead solely a function of radio power. In this scenario the evolutionary properties of extragalactic radio sources can be fully described within a `single population scheme'.
dc.descriptionLaTeX, 6 pages, 1 fig: Elsevier science format - NAR. Proceedings of the workshop "Radio galaxies: past, present & future". eds. Matt Jarvis et al. Leiden, Nov, 2002
dc.identifierhttps://arxiv.org/abs/astro-ph/0211613
dc.identifierhttp://arxiv.org/abs/astro-ph/0211613
dc.identifierNewAstron.Rev.47:225-229,2003
dc.identifierdoi:10.1016/S1387-6473(03)00030-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/178434
dc.subjectAstrophysics
dc.titleA single population scheme for FR I and FR II radio galaxies
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