Published in
American Astronomical Society, Astrophysical Journal, 2(797), p. 85, 2014
DOI: 10.1088/0004-637x/797/2/85
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Dust and Gas in the Magellanic Clouds From the Heritageherschelkey Project. I. Dust Properties and Insights Into the Origin of the Submillimeter Excess Emission
,
Julia Roman-Duval ,
Caroline Bot ,
Margaret Meixner,
Brian Babler ,
Jean-Philippe Bernard,
Alberto Bolatto,
Martha L. Boyer,
Geoffrey C. Clayton ,
Charles Engelbracht,
Yasuo Fukui,
Maud Galametz,
Frederic Galliano,
Sacha Hony,
Annie Hughes
and other authors.
Full text: Download
Abstract
The dust properties in the Large and Small Magellanic Clouds are studied using the HERITAGE Herschel Key Project photometric data in five bands from 100 to 500 micron. Three simple models of dust emission were fit to the observations: a single temperature blackbody modified by a power- law emissivity (SMBB), a single temperature blackbody modified by a broken power-law emissivity (BEMBB), and two blackbodies with different temperatures, both modified by the same power-law emissivity (TTMBB). Using these models we investigate the origin of the submm excess; defined as the submillimeter (submm) emission above that expected from SMBB models fit to observations