Keck/MOSFIRE spectroscopic confirmation of a virgo-like cluster ancestor at z = 2.095
We present spectroscopic confirmation of a galaxy cluster at z = 2.095 in the COSMOS field. This galaxy cluster was first reported in the ZFOURGE survey as harboring evolved massive galaxies using photometric redshifts derived with deep near-infrared (NIR) medium-band filters. We obtain medium-resolution (R ∼ 3600) NIR spectroscopy with MOSFIRE on the Keck 1 telescope and secure 180 redshifts in a 12′ x 12′ region. We find a prominent spike of 57 galaxies at z = 2.095 corresponding to the...[Show more]
|Collections||ANU Research Publications|
|Source:||Astrophysical Journal Letters|
|Access Rights:||Open Access|
|01_Yuan_Keck/MOSFIRE_spectroscopic_2014.pdf||832.17 kB||Adobe PDF|
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