Reuland, Michielvan Breugel, Wilde Vries, WimDopita, MichaelDey, ArjunMiley, GeorgeRottgering, HubbVenemans, BramStanford, S. AdamLacy, MarkSpinrad, HyDawson, SteveStern, DanielBunker, Andrew2015-12-070004-6256http://hdl.handle.net/1885/23687We present the results of an optical and near-IR spectroscopic study of giant nebular emission-line halos associated with three z > 3 radio galaxies, 4C 41.17, 4C 60.07, and B2 0902+34. Previous deep narrowband Lyα imaging revealed complex morphologies wKeywords: Galaxies: active; Galaxies: formation; Galaxies: high-redshift; Galaxies: individual (B2 0902+34, 4C 60.07, 4C 41.17); Quasars: emission lines200710.1086/5165712015-12-07