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Abstract
En 中文
We use 350 mu m angular diameter estimates from Planck to test the idea that some galaxies contain exceptionally cold (10-13 K) dust, since colder dust implies a lower surface brightness radiation field illuminating the dust, and hence a greater physical extent for a given luminosity. The galaxies identified from their spectral energy distributions as containing cold dust do indeed show the expected larger 350 mu m diameters. For a few cold dust galaxies where Herschel data are available, we are able to use submillimetre maps or surface brightness profiles to locate the cold dust, which as expected generally lies outside the optical galaxy.
Keywords:
stars: formation
galaxies: evolution
galaxies: starburst
cosmology: observations
infrared: galaxies
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Journal
IF:
4.8
Papers:
7.0W
Citations:
25.0W
Organization
Cited Papers
Spectral energy distributions and luminosities of galaxies and active galactic nuclei in the Spitzer Wide-Area Infrared Extragalactic (SWIRE) legacy Survey
ASTRONOMICAL JOURNAL
IF5.1
Herschel-ATLAS: multi-wavelength SEDs and physical properties of 250 μm selected galaxies at z < 0.5

