Open AccessThe distribution of atomic gas and dust in nearby galaxies – I. Presentation of matched‐resolution VLA H i and SCUBA 850‐μm maps
Author(s) -
Thomas H.C.,
Dunne L.,
Clemens M.S.,
Alexander P.,
Eales S.,
Green D.A.
Publication year - 2002
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2002.05035.x
Subject(s) - physics , astrophysics , galaxy , luminous infrared galaxy , absorption (acoustics) , astronomy , optics
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.