Mathematics – Logic
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5378d&link_type=abstract
HST Proposal ID #5378
Mathematics
Logic
Hst Proposal Id #5378 Galaxies &Amp, Clusters Distant Galaxies
Scientific paper
Our program is intended to study galaxy evolution through the investigation of galaxy morphology and spectrophotometry as a function of lookback time. Cycle 1 and 2 observations made by two teams represented in this proposal have demonstrated HST's unique potential for providing detailed morphological information for galaxies in clusters at z = 0.5. Such data are applicable to basic questions such as the development of disks and bulges, and the role mergers and interactions, and other environmental influences on the evolution of structure and stellar populations. Both teams made Cycle 1 and 2 observations that are described here. However, the combination of the SA problem and reduced time allocations severely limited the scope of both programs; thus, we request consideration under the Precedents Policy for originally approved Cycle 1 programs. We use our earlier results to demonstrate the feasibility of our program, pointing out the interesting but ambiguous nature of what has been learned to this point. In order to better understand the processes at work and and their range, we propose a more extensive program which includes a wider representation of cluster environments, adds color information, and reaches to higher redshifts.
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