Other
Scientific paper
Dec 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997hst..prop.7467k&link_type=abstract
HST Proposal ID #7467
Other
Hst Proposal Id #7467 Galaxies
Scientific paper
We propose WFPC2 imaging of two interacting galaxy pairs in two bandpasses {B and I}. In the two-dimensional space of interactions that go from weak to strong, and from early to late, these 2 pairs represent the as-yet unstudied cases of ``late weak'' and ``early strong'' interactions. Our goal is primarily to determine whether the super star clusters {SSC's} that are so prevalent in strong, evolved interactions have also been able to form in the weak or young interactions. Secondly, if such clusters are found, we hope to correlate their properties as much as possible to the strengths and ages of the interactions, using the results of previous HST studies {by other authors} of SSC's in older, stronger interactions to complete the correlation space study. We wish to derive the luminosity function, color distribution, and spatial distribution of these clusters, with the hope of correlating those properties with {a} the distribution and site-specific properties of H II regions that are already seen in ground- based H-alpha observations and with {b} the global physical parameters of the tidal interaction event. In this way, we hope to understand further what are the conditions under which such massive star clusters form, what is their prevalence at the present epoch in violently star-forming regions, and are these regions likely analogs for early epochs of star and galaxy formation.
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