Other
Scientific paper
Sep 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004sptz.prop.3544e&link_type=abstract
Spitzer Proposal ID #3544
Other
Scientific paper
We propose IRAC and MIPS observations of the interacting galaxies IC 2163 and NGC 2207 in order to find and measure the properties of embedded young massive clusters (YMC), determine the luminosities and masses of clusters and gas in an extraordinary region that may contain a black hole inside a YMC, measure the dust temperatures and column densities in dozens of clouds in NGC 2207 that were also observed in HI and in extinction using IC 2163 as a background source, and look for the IR counterparts of enhanced radio continuum ridges that are associated with galactic-scale tidal shocks. The results should clarify an observation that is peculiar to these galaxies and a few other sources of enhanced YMC formation relative to lower mass clusters. The data could also reveal the first evidence of mutual disk scraping in a grazing collision. As this galaxy pair is among the most thoroughly observed and modeled of all interacting (non-merger) systems, the SST observations combined with our other data and models will allow us to determine the history of tidal deformations, gas flow, and star formation over the 40 My since perigalacticon.
Brinks Elias
Elmegreen Bruce
Elmegreen Debra
Kaufman Michele
Sheth Kartik
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