STIS Imaging of the Deep NICMOS Parallel Fields: Building on the NICMOS Legacy

Computer Science

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Hst Proposal Id #8187 Distant Galaxies

Scientific paper

We propose to use the STIS/CCD to image 15 high latitude field imaged with NICMOS as part of the public parallel program. The STIS images will yield visual morphologies to magnitudes of 24.5 and quantitative measures of image structure to 26.5 or fainter in two orbits. These data will allow us to 1} derive the morphologies of a sample of HAlpha selected L^* galaxies at 0.7 < z < 1.9, 2} assess the impact of patchy extinction on the population of very red galaxies, and 3} compare the rest- frame visible and UV morphologies of a large number of galaxies over a wide range of luminosities and colors to understand the degree to which optical selection biases our view of galaxy evolution. This modest investment of observing time will complement the Hubble Deep fields and will greatly enhance the value of the NICMOS, STIS and WFPC2 archive of faint galaxy data.

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