Hostname: page-component-5c6d5d7d68-qks25 Total loading time: 0 Render date: 2024-08-27T05:23:56.114Z Has data issue: false hasContentIssue false
  • English
  • Français

OH as a Probe of The Milky Way's Hidden Gas: First Results from SPLASH

Part of: IAU Issue 315 - From Interstellar Clouds...

Published online by Cambridge University Press:  12 September 2016

J. R. Dawson ,
A. J. Walsh  and
The SPLASH Team
J. R. Dawson
Affiliation:
Department of Physics and Astronomy and MQ Research Centre in Astronomy, Astrophysics and Astrophotonics, Macquarie University, NSW 2109, Australia email: joanne.dawson@mq.edu.au CSIRO Astronomy and Space Science, P.O. Box 76, Epping, NSW 1710, Australia
A. J. Walsh
Affiliation:
International Centre for Radio Astronomy Research, Curtin University, GPO Box U1987, Perth, WA 6845, Australia email: andrew.walsh@curtin.edu.au
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

SPLASH (the Southern Parkes Large-Area Survey in Hydroxyl) is a deep survey of ground-state OH absorption and emission from the Galactic Plane, as well as an unbiased search for OH masers. Key early results include the detection of a rich and complex distribution of diffuse, optically thin OH with strongly non-thermal excitation temperatures, and the detection of numerous new maser sources. The survey aims to use OH as a probe of CO-dark H2 ISM Galactic scales, with future plans including comprehensive comparisons with CO and Hi, as well as non-LTE excitation modelling of the four ground-state lines.

Keywords

ISM: cloudsISM: evolutionISM: moleculesmaserssurveys
Type
Poster Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S315: From Interstellar Clouds to Star-Forming Galaxies: Universal Processes? , August 2015 , E17
Copyright
Copyright © International Astronomical Union 2015 

References

Allen, R. J., Hogg, D. E., & Engelke, P. D. 2015, AJ, 149, 123 Google Scholar
Allen, R. J., Ivette Rodríguez, M., Black, J. H., & Booth, R. S. 2012, AJ, 143, 97 CrossRefGoogle Scholar
Dawson, J. R., Walsh, A. W., Jones, P. A. et al. 2014, MNRAS, 439, 1596 CrossRefGoogle Scholar
Grenier, I. A., Casandjian, J., & Terrier, R. 2005, Science, 307, 1292 CrossRefGoogle Scholar
Hewitt, J. W., Yusef-Zadeh, F., Wardle, M., Roberts, D. A., & Kassim, N. E. 2006, ApJ, 652, 1288 CrossRefGoogle Scholar
Li, D., & Goldsmith, P. F. 2003, ApJ, 585, 823 Google Scholar
Liszt, H., & Lucas, R. 1996, A&A, 314, 917 Google Scholar
Planck Collaboration 2011, A&A, 536, A19 Google Scholar
Wannier, P. G., Andersson, B.-G., Federman, S. R. et al. 1993, ApJ, 407, 163 CrossRefGoogle Scholar
Wolfire, M. G., Hollenbach, D., & McKee, C. F. 2010, ApJ, 716, 1191 Google Scholar