Matched resolution VLA HI and SCUBA 850-μm images of 20 IRAS bright galaxies are discussed. The HI distributions of the galaxies show a range of morphologies, with some of the systems HI deficient in the central regions. The 850-μm emission generally shows 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 disk in some of the galaxies. Finally, we note that the relative lack of 850-μm emission when compared to HI does not necessarily mean that the atomic gas and dust do not have similar mass distributions.
Seeing Through the Dust: The Detection of HI and the Exploration of the ISM in Galaxies
- Pub Date:
- December 2002