A Spectroscopic Follow-up Program of Very Massive Galaxies at 3 < z < 4: Confirmation of Spectroscopic Redshifts, and a High Fraction of Powerful AGNs
We present the analysis and results of a spectroscopic follow-up program of a mass-selected sample of six galaxies at 3 z 4 using data from Keck-NIRPSEC and VLT-Xshooter. We confirm the z> 3 redshifts for half of the sample through the detection of strong nebular emission lines, and improve the z phot accuracy for the remainder of the sample
Marsan, Z. Cemile et al.
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2017