Triplets of quasars as lighthouses of rich galaxy clusters

In this Letter, we investigate the very large-scale environments of cluster-scale triplets of type 1 Seyfert galaxies, lower luminosity counterparts of quasars, detected at z < 0.2 in the fourth Data Release of the Sloan Digital Sky Survey. The search for cluster scale triplets (object-object...

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書目詳細資料
Main Authors: Sochting, I, Coldwell, G, Alonso, M, Smith, MG, Lambas, D
格式: Journal article
語言:English
出版: 2008

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