Dust Properties in Nearby Sub-mm Galaxies

Details Dust Properties in Nearby Sub-mm Galaxies Dust Properties in Nearby Sub-mm Galaxies

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30348r&link_type=abstract

Spitzer Proposal ID #30348

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Scientific paper

We propose MIPS and IRAC observations of 11 nearby galaxies for which cold dust has been detected at 850 microns with SCUBA. These galaxies have morphological types ranging from elliptical to late spirals, have quiescent star formation rates and dust masses dominated by cold dust. The combined sub-millimeter, far-and mid-infrared properties of these galaxies show they have no counterparts in the SINGS survey. The proposed sample will be used to address several questions: What are the properties of cold dust such as extent, emissivity, temperature and mass ? How do these cold dust properties correlate with galaxy morphology, stellar populations and star formation rates ? Does the cold dust contain imprints from past and present interactions of galaxies ? By probing a parameter space not covered by SINGS, the proposed sample of galaxies will also expand the number of local templates to which observations of distant galaxies can be compared.

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