Dating the stellar population in massive early-type galaxies at z~ 1.5

  title={Dating the stellar population in massive early-type galaxies at z~ 1.5},
  author={Marcella Longhetti and Paolo Saracco and Paolo Severgnini and Roberto Della Ceca and Valentina Braito and Filippo Mannucci and Ralf Bender and Niv Drory and Georg Feulner and Ulrich Hopp},
We present an analysis of 10 massive early-type galaxies at z ∼ 1.5. They have been identified by means of a near-infrared (near-IR) low-resolution spectroscopic follow-up of a complete sample of 36 bright (K' 5) selected from the Munich Near-IR Cluster Survey (MUNICS) of Drory et al. The low-resolution near-IR spectra constrain their redshift at 1.2 2 for all the galaxies and z f ≥ 4 for the oldest ones. The comparison of the 4000-A break and of the overall spectral shape of the average… CONTINUE READING

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