Spectroscopic Identification of Massive Galaxies at z ~ 2.3 with Strongly Suppressed Star Formation*

  title={Spectroscopic Identification of Massive Galaxies at z ~ 2.3 with Strongly Suppressed Star Formation*},
  author={Mariska Kriek and Pieter van Dokkum and Marijn Franx and Ryan F. Quadri and Eric Gawiser and David Herrera and Garth D. Illingworth and Ivo Labb{\'e} and Paulina Lira and Danilo Marchesini and Hans-Walter Rix and Gregory H. Rudnick and Edward Taylor and Sune Toft and M. Urry and Stijn Wuyts},
  journal={The Astrophysical Journal},
We present first results of a spectroscopic survey targeting K-selected galaxies at z = 2.0-2.7 using the Gemini near-infrared spectrograph (GNIRS). We obtained near-infrared spectra with a wavelength coverage of 1.0-2.5 μm for 26 K-bright galaxies (K < 19.7) selected from the Multi-wavelength Survey by Yale-Chile (MUSYC) using photometric redshifts. We successfully derived spectroscopic redshifts for all 26 galaxies using rest-frame optical emission lines or the redshifted Balmer/4000 A break… 

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