Discovery of an overdensity of faint red galaxies in the vicinity of the z=1.786 radio galaxy 3C 294

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dc.creatorToft, S.
dc.creatorPedersen, K.
dc.creatorEbeling, H.
dc.creatorHjorth, J.
dc.date2003-03-31
dc.date.accessioned2026-07-07T06:26:09Z
dc.date.available2026-07-07T06:26:09Z
dc.descriptionWe report the discovery of an overdensity of faint red galaxies in the vicinity of the z=1.786 radio galaxy 3C 294. The overdensity, discovered in a 84 min Ks-band ISAAC/VLT image is significant at the 2.4 sigma level (compared to the local field density), and overlaps with the extended X-ray emission around 3C 294 detected with the Chandra X-ray Observatory. The near-infrared colours of the galaxies making up the overdensity show a large scatter and the galaxies do not follow a red sequence in the colour magnitude diagram. If the galaxies are in a cluster at z=1.786 they must be dominated by young stellar populations with different star-formation histories.
dc.descriptionAccepted for publication in MNRAS
dc.identifierhttps://arxiv.org/abs/astro-ph/0303663
dc.identifierhttp://arxiv.org/abs/astro-ph/0303663
dc.identifierMon.Not.Roy.Astron.Soc. 341 (2003) L55
dc.identifierdoi:10.1046/j.1365-8711.2003.06678.x
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97028
dc.subjectAstrophysics
dc.titleDiscovery of an overdensity of faint red galaxies in the vicinity of the z=1.786 radio galaxy 3C 294
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