Detection of Two Massive CO Systems in 4C 41.17 at z = 3.8

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dc.creatorDe Breuck, Carlos
dc.creatorDownes, Dennis
dc.creatorNeri, Roberto
dc.creatorvan Breugel, Wil
dc.creatorReuland, Michiel
dc.creatorOmont, Alain
dc.creatorIvison, Rob
dc.date2004-11-26
dc.date.accessioned2026-07-07T02:16:03Z
dc.date.available2026-07-07T02:16:03Z
dc.descriptionWe have detected CO(4-3) in the z=3.8 radio galaxy 4C 41.17 with the IRAM Interferometer. The CO is in two massive (M_dyn ~ 6 x 10^10 M_Sun) systems separated by 1.8" (13 kpc), and by 400 km/s in velocity, which coincide with two different dark lanes in a deep Ly-alpha image. One CO component coincides with the cm-radio core of the radio galaxy, and its redshift is close to that of the HeII AGN line. The second CO component is near the base of a cone-shaped region southwest of the nucleus, which resembles the emission-line cones seen in nearby AGN and starburst galaxies. The characteristics of the CO sources and their mm/submm dust continuum are similar to those found in ultraluminous IR galaxies and in some high-z radio galaxies and quasars. The fact that 4C 41.17 contains two CO systems is further evidence for the role of mergers in the evolution of galaxies at high redshift.
dc.description5 Pages, including 4 PostScript figures. Accepted for publication in Astronomy & Astrophysics Letters
dc.identifierhttps://arxiv.org/abs/astro-ph/0411732
dc.identifierhttp://arxiv.org/abs/astro-ph/0411732
dc.identifierAstron.Astrophys. 430 (2005) L1-L4
dc.identifierdoi:10.1051/0004-6361:200400115
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8643
dc.subjectAstrophysics
dc.titleDetection of Two Massive CO Systems in 4C 41.17 at z = 3.8
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