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Tracing major structures of the inner Galaxy with 6.7-GHz methanol masers


Green, JA and Caswell, JL and McClure-Griffiths, NM and Avison, A and Breen, SL and Burton, MG and Ellingsen, SP and Fuller, GA and Gray, MD and Pestalozzi, M and Thompson, MA and Voronkov, MA, Tracing major structures of the inner Galaxy with 6.7-GHz methanol masers, EPJ Web of Conferences, 17-22 April 2011, Le Grand-Bornand, France, pp. 1-3. ISBN 978-2-7598-0718-5 (2012) [Refereed Conference Paper]


Copyright Statement

Copyright 2012 the Authors

DOI: doi:10.1051/epjconf/20121906007


Through analysis of correlations within the longitude-velocity distribution of 6.7-GHz methanol masers, we identify density enhancements indicative of large-scale regions of enhanced star formation. In the context of the inner structure of our Galaxy these are interpreted as the starting points of the spiral arms and the interaction of the long Galactic bar with the 3kpc arms. Signatures of a continuous 3kpc arm structure are seen including a prominent tangent at 22 Galactic longitude.

Item Details

Item Type:Refereed Conference Paper
Keywords:Inner Galaxy: Bulge/Bar/Inner Disc Interplay, Role of Mergers
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:Ellingsen, SP (Professor Simon Ellingsen)
ID Code:85109
Year Published:2012
Web of Science® Times Cited:2
Deposited By:Research Division
Deposited On:2013-06-14
Last Modified:2017-11-03
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