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HI Emission and Absorption in the Southern Galactic Plane Survey
Citation
McClure-Griffiths, NM and Dickey, JM and Gaensler, BM and Green, AJ and Haynes, RF and Wieringa, MH, HI Emission and Absorption in the Southern Galactic Plane Survey, Publications of the Astronomical Society of Australia, 18, (1) pp. 84-90. ISSN 1323-3580 (2001) [Refereed Article]
DOI: doi:10.1071/AS01010
Abstract
We present preliminary results from the Southern Galactic Plane Survey (SGPS) Test Region and Parkes data. As part of the pilot project for the Southern Galactic Plane Survey, observations of a Test Region (325·5° ≤ l ≤ 333·5°; -0·5° ≤ b ≤ 3·5°) were completed in December 1998. Single-dish observations of the full survey region (253° ≤ l ≤ 358°; |b| ≤ 1°) with the Parkes Radio Telescope were completed in March 2000. We present a sample of SGPS H I data, with particular attention to the smallest- and largest-scale structures seen in absorption and emission, respectively. On the large scale, we detect many prominent H I shells. On the small scale, we note extremely compact, cold clouds seen in H I self-absorption. We explore how these two classes of objects probe opposite ends of the H I spatial power spectrum.
Item Details
Item Type: | Refereed Article |
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Research Division: | Physical Sciences |
Research Group: | Astronomical sciences |
Research Field: | Galactic astronomy |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the physical sciences |
UTAS Author: | Dickey, JM (Professor John Dickey) |
ID Code: | 46813 |
Year Published: | 2001 |
Web of Science® Times Cited: | 8 |
Deposited By: | Physics |
Deposited On: | 2007-09-04 |
Last Modified: | 2011-08-03 |
Downloads: | 0 |
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