A First CANDELS Census of Luminous Galaxies at z > 6

Details A First CANDELS Census of Luminous Galaxies at z > 6 A First CANDELS Census of Luminous Galaxies at z > 6

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21941904y&link_type=abstract

American Astronomical Society, AAS Meeting #219, #419.04

Astronomy and Astrophysics

Astronomy

Scientific paper

The "Wide'' component of the CANDELS program provides us an unique opportunity to search for the most luminous galaxies at z 7 and to characterize the star formation processes at these very early epochs of the universe. These data, which will eventually cover 0.2 deg2 to AB 27 mag in two WFC3 near-IR bands (J and H), are playing a critical role in bridging the gap
between the ultra-deep survey by the HUDF and those wider and shallower surveys from the ground. Here we present our preliminary results at z 7 in the UDS and the EGS fields, where the "Wide'' data have covered 275 arcmin2. About 10 very bright candidate galaxies at z 7 have been found in each field, including two objects that might be gravitationally lensed and one
system that shows a strong indication of merging. The number density of such very bright candidates could suggest that the bright-end of galaxy luminosity function might have a different evolution trend in early time as compared to the faint-end.

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