Windows of the Early Universe beyond Redshift 7

Details Windows of the Early Universe beyond Redshift 7 Windows of the Early Universe beyond Redshift 7

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10310z&link_type=abstract

HST Proposal ID #10310

Physics

Hst Proposal Id #10310 Galaxies

Scientific paper

Deep ACS images such as UDF are our most powerful probe of the early universe to date, with the discovery of many z 6 candidates. Thousands archival ACS images have covered areas whose sum is significantly larger than the GOODS fields, providing an ideal opportunity to further search for objects at z>7, characterized as z-band "dropouts." We will carry out a systematic search of these objects by combining multi-band ACS images, with deep ground-based infrared photometry. Our goals are: {1} Discovery of {bright} z>7 galaxies, to probe the reionization epoch of the intergalactic medium; {2} Study of the luminosity function of galaxies at z>6. The results will provide insight into the z>10 universe, particularly the bright end of the source distribution, which is crucial for the JWST.

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