Mathematics – Logic
Scientific paper
Jul 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996hst..prop.6346b&link_type=abstract
HST Proposal ID #6346
Mathematics
Logic
Hst Proposal Id #6346 Galaxies &Amp, Clusters
Scientific paper
We propose to obtain snapshot survey images for many of the galaxies in the IRAS ultraluminous galaxy sample using the WFPC2 in the I bandpass {F814W}. These will be used to study the galaxies' cores and starburst regions, with particular emphasis on searching for young stellar clusters, as have already been found in HST observations of similar objects. Nearly all of these galaxies show evidence for a very recent tidal interaction, and we will search for evidence of the merger progenitors by searching for multiple cores near the center of each galaxy. We will also study the galaxies' morphological properties, particularly searching for any fine structure in the star-forming regions. These images will be used to map the spatial distribution of the starburst activity in these galaxies, to derive the distribution and properties of the major star-forming regions, to search for evidence of large H II complexes of the 30 Dor type, and to search for sharp, bright structures {e.g., the rims of super-shells or propagating waves of star formation}. In addition, these images will serve as a baseline for future HST observations of the same objects in searches for the Type II supernovae that are expected to be produced at a prodigious rate in these strongly starbursting systems {several SNe per year per galaxy}.
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