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ThrUMMS: A New View of the Molecular Milky Way

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

Published online by Cambridge University Press:  12 September 2016

Peter Barnes ,
Erik Muller ,
Quang Nguyen Luong  and
Hans Nguyen
Peter Barnes
Affiliation:
Astronomy Dept., University of Florida, PO Box 112055, Gainesville FL 32611, USA email: pjb@ufl.edu School of Science & Technology, University of New England, Armidale NSW 2351, Australia email: erik.muller@nao.ac.jp
Erik Muller
Affiliation:
National Astronomical Observatory of Japan, Chile Observatory, Tokyo 181-8588, Japan email: quang.nguyen-luong@nao.ac.jp
Quang Nguyen Luong
Affiliation:
National Astronomical Observatory of Japan, Chile Observatory, Tokyo 181-8588, Japan email: quang.nguyen-luong@nao.ac.jp
Hans Nguyen
Affiliation:
Max-Planck-Institut für Radioastronomie, Auf dem Hügel 69, 53121, Bonn, Germany email: hnguyen@cita.utoronto.ca
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Abstract

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We present the Three-mm Ultimate Mopra Milky Way Survey, a new mm-wave molecular-line mapping survey of the southern Galactic Plane, and its first data releases and science results. ThrUMMS maps a 60° × 2° sector of our Galaxy's fourth quadrant, using a combination of fast mapping techniques with the Mopra radio telescope, simultaneously in the J = 1→0 lines of 12CO, 13CO, C18O, and CN near 112 GHz, at 1′.2 and 0.3 km s−1 resolution, with 1.2 K/ch sensitivity for 12CO and 0.7 K/ch for the other transitions. The calibrated data cubes from these observations are made freely available to the community on the ThrUMMS website, http://www.astro.ufl.edu/thrumms, after processing through our pipeline. Here, we summarise the first science results, on global variations in the iso-CO line ratios and on a detailed multiwavelength study of the GMCs near l=333°.

Keywords

Molecular cloudsGalactic structurestar formation
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 , E5
Copyright
Copyright © International Astronomical Union 2015 

References

Barnes, P.J., Muller, E., Indermuehle, B., et al. 2015, ApJ, 812, 6 CrossRefGoogle Scholar
Nguyen, H., Nguyen Luong, Q., Martin, P.G., et al. 2015, ApJ, 812, 7 Google Scholar