The distribution of atomic gas and dust in nearby galaxies -- I. Presentation of matched-resolution VLA H I and SCUBA 850- m maps

Thomas, H. C., Dunne, Loretta, Clemens, M. S., Alexander, P., Eales, Stephen Anthony ORCID: https://orcid.org/0000-0002-7394-426X and Green, D. A. 2002. The distribution of atomic gas and dust in nearby galaxies -- I. Presentation of matched-resolution VLA H I and SCUBA 850- m maps. Monthly Notices of the Royal Astronomical Society 329 (4) , pp. 747-758. 10.1046/j.1365-8711.2002.05035.x

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Abstract

We present matched-resolution VLA H i and SCUBA 850-μm maps of 20 IRAS-bright galaxies. Of the galaxies observed, two were not detected in H i and two were detected in absorption. The H i distributions of the galaxies have a range of morphologies. Some of the systems appear H i deficient in the central regions which could be due to a high conversion rate of H i into molecules or H i absorption. In contrast to the H i, the 850-μm emission has a smooth distribution which is concentrated towards the optical centre of each galaxy. We also find evidence for 850-μm emission extending to the periphery of the optical disc in some of the galaxies. Finally, we note that the relative lack of 850-μm emission when compared with H i does not necessarily mean that the atomic gas and dust do not have similar mass distributions.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Physics and Astronomy
Subjects:	Q Science > QB Astronomy
Uncontrolled Keywords:	galaxies; ISM; radio lines; submillimetre
Publisher:	Oxford University Press
ISSN:	0035-8711
Last Modified:	24 Oct 2022 11:07
URI:	https://orca.cardiff.ac.uk/id/eprint/47011

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