Expanding The Search For Galaxies At z 7-10 With New NICMOS Parallel Fields

Details Expanding The Search For Galaxies At z 7-10 With New NICMOS Parallel Fields Expanding The Search For Galaxies At z 7-10 With New NICMOS Parallel Fields

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21330203h&link_type=abstract

American Astronomical Society, AAS Meeting #213, #302.03; Bulletin of the American Astronomical Society, Vol. 41, p.271

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Scientific paper

We have carried out a search for z 7-10 galaxies in 14.4 square arcminutes of new NICMOS parallel imaging taken in the Great Observatories Origins Deep Survey (GOODS, 5.9 sq. arcmin), the Cosmic Origins Survey (COSMOS, 7.2 sq. arcmin), and SSA22 (1.3 sq. arcmin). These images reach 5 sigma sensitivities of J110 = 26.0-27.5 (AB), and when combined, they increase the amount of deep near infrared data by more than 60% in fields where the investment in deep optical data has already been made. While no z>7 candidates are found, we use this new upper limit to constrain evolution of the UV luminosity function of Lyman break galaxies. We compare this result to other surveys for z>7 galaxies, in particular, those of Bouwens et al. Finally, we discuss implications for reionization of the intergalactic medium by star forming galaxies.

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