First Results from HIPPIES: Constraint on the Very Bright End of Galaxy Luminosity Function at z > 7

Astronomy and Astrophysics – Astronomy

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Scientific paper

We present the first results from the Hubble Infrared Pure Parallel Imaging Extragalactic Survey (HIPPIES), which utilizes HST pure parallel orbits to do deep imaging along a large number of random sightlines. One of the key goals of HIPPIES is to search for candidate galaxies at z>7 and to address the very bright-end of the luminosity function at these redshifts. We report the Ys-dropouts discovered among the 30 WFC3 fields observed in Cycle 17(program 11700, PI. M. Trenti; and program 11702, PI. H. Yan), and compare to the initial Y-dropout selection results from 8 WFC3 fields recently observed in Cycle 18 (program 12286, PI. H. Yan). We acknowledge the support of NASA grant HST-GO-11702.*.

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