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Dust and gas in the magellanic clouds from the heritage herschel key project. II. Gas-to-dust ratio variations across interstellar medium phases

Roman-Duval, Julia; Gordon, Karl D.; Meixner, Margaret; Bot, Caroline; Bolatto, Alberto; Hughes, Annie Meredith; Wong, Tony; Babler, Brian L.; Bernard, Jean Ph; Clayton, Geoffrey C.; Jameson, Katherine


The spatial variations of the gas-to-dust ratio (GDR) provide constraints on the chemical evolution and lifecycle of dust in galaxies. We examine the relation between dust and gas at 10-50 pc resolution in the Large and Small Magellanic Clouds (LMC and SMC) based on Herschel far-infrared (FIR), HI 21 cm, CO, and Hiα observations. In the diffuse atomic interstellar medium (ISM), we derive the GDR as the slope of the dust-gas relation and find GDRs of 380-130+250 ± 3 in the LMC, and 1200-420+1600...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.1088/0004-637X/797/2/86
Access Rights: Open Access


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