Computer Science
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7817d&link_type=abstract
HST Proposal ID #7817
Computer Science
Hst Proposal Id #7817 Clusters Of Galaxies And Cosmology
Scientific paper
We propose to map the complete WFPC2 region of the central Hubble Deep Field {HDF} with NICMOS Camera 3 at F110W and F160W. NICMOS imaging can make an invaluable contribution to the study of high redshift galaxies, particular at z > 1 where the rest-frame optical light redshifts into the near-IR. However, there are very few scheduled NICMOS imaging programs which will provide data on large numbers of z > 1 galaxies with both known redshifts and deep WFPC2 imaging. The HDF is the most intensively observed region of the sky for high redshift galaxy studies, and is the natural choice for a wide-angle NICMOS imaging survey. These data will yield immediate results because of the extensive information already in hand on HDF galaxies. Our proposed observations complement the GTO program already planned for the HDF, which will image a much smaller field { 1/7th the solid angle} to much greater depths. The GTO data will provide unique information about the faintest objects, but will include only a small number of objects with spectroscopic redshifts or z 3 Lyman break galaxies. Imaging the complete HDF is an efficient way to ensure that NICMOS leaves a substantial archival legacy of imaging data on an unbiased sample of normal field galaxies at very large redshifts.
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