Survey1
N. M. McClure-Griffiths ,
John M. Dickey ,
B. M. Gaensler ,
A. J. Green ,
R. F. Haynes ,
M. H. Wieringa
, PASA, 18 (1), in press.
Next Section: Introduction
H I Emission and Absorption in the Southern Galactic Plane
Survey1
N. M. McClure-Griffiths 1 - John M. Dickey 1 - B. M. Gaensler 2 - A. J. Green 3 - R. F. Haynes 4 - M. H. Wieringa 4
1 Department of Astronomy, University of Minnesota, 116 Church St. S.E., Minneapolis, MN 55455, USAnaomi@astro.umn.edu, john@astro.umn.edu
2 Center for Space Research, Massachusetts Institute of Technology, 70 Vassar St., Cambridge, MA 02139, USA
bmg@space.mit.edu
3 Astrophysics Department, School of Physics, Sydney University, NSW 2006
agreen@physics.usyd.edu.au
4 Australia Telescope National Facility, CSIRO, P.O. Box 76, Epping, NSW 2121
Raymond.Haynes@atnf.csiro.au, Mark.Wieringa@atnf.csiro.au
Abstract:
;
) were completed in December 1998. Single dish observations of the full survey region (
;
) 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.
Keywords: Galaxy -- ISM: bubbles, clouds, structure
- Introduction
- H I Shells
- H I Self-Absorption (HISA)
- Questions and Future Work
- Conclusions
- Acknowledgements
- References
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© Copyright Astronomical Society of Australia 1997