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  1. OA@INAF
  2. PRODOTTI RICERCA INAF
  3. 1 CONTRIBUTI IN RIVISTE (Journal articles)
  4. 1.01 Articoli in rivista
Please use this identifier to cite or link to this item: http://hdl.handle.net/20.500.12386/29542
Title: The Rest-frame H-band Luminosity Function of Red-sequence Galaxies in Clusters at 1.0 < z < 1.3
Authors: Chan, Jeffrey C. C.
Wilson, Gillian
Rudnick, Gregory
Muzzin, Adam
Balogh, Michael
Nantais, Julie
van der Burg, Remco F. J.
Cerulo, Pierluigi
BIVIANO, ANDREA 
Cooper, Michael C.
Demarco, Ricardo
Forrest, Ben
Lidman, Chris
Noble, Allison
Old, Lyndsay
Pintos-Castro, Irene
Reeves, Andrew M. M.
Webb, Kristi A.
Yee, Howard K. C.
Abdullah, Mohamed H.
DE LUCIA, GABRIELLA 
Marchesini, Danilo
McGee, Sean L.
Stefanon, Mauro
Zaritsky, Dennis
Issue Date: 2019
Journal: THE ASTROPHYSICAL JOURNAL 
Number: 880
Issue: 2
First Page: 119
Abstract: We present results on the rest-frame H-band luminosity functions (LFs) of red-sequence galaxies in seven clusters at 1.0 < z < 1.3 from the Gemini Observations of Galaxies in Rich Early Environments Survey. Using deep GMOS z<SUP>\prime</SUP> and IRAC 3.6 μm imaging, we identify red-sequence galaxies and measure their LFs down to {M}<SUB>H</SUB>∼ {M}<SUB>H</SUB><SUP>* </SUP>+(2.0-3.0). By stacking the entire sample, we derive a shallow faint-end slope of α ∼ -{0.35}<SUB>-0.15</SUB><SUP>+0.15</SUP> and {M}<SUB>H</SUB><SUP>* </SUP>∼ -{23.52}<SUB>-0.17</SUB><SUP>+0.15</SUP>, suggesting that there is a deficit of faint red-sequence galaxies in clusters at high redshift. By comparing the stacked red-sequence LF of our sample with a sample of clusters at z ∼ 0.6, we find an evolution of the faint end of the red sequence over the ∼2.6 Gyr between the two samples, with the mean faint-end red-sequence luminosity growing by more than a factor of 2. The faint-to-luminous ratio of our sample ({0.78}<SUB>-0.15</SUB><SUP>+0.19</SUP>) is consistent with the trend of decreasing ratio with increasing redshift proposed in previous studies. A comparison with the field shows that the faint-to-luminous ratios in clusters are consistent with those in the field at z ∼ 1.15 and exhibit a stronger redshift dependence. Our results support the picture that the buildup of faint red-sequence galaxies occurs gradually over time and suggest that faint cluster galaxies, similar to bright cluster galaxies, already experience the quenching effect induced by the environment at z ∼ 1.15.
URI: http://hdl.handle.net/20.500.12386/29542
URL: https://iopscience.iop.org/article/10.3847/1538-4357/ab2b3a
ISSN: 0004-637X
DOI: 10.3847/1538-4357/ab2b3a
Bibcode ADS: 2019ApJ...880..119C
Fulltext: open
Appears in Collections:1.01 Articoli in rivista

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