Journal Article

The 6-GHz methanol multibeam maser catalogue – III. Galactic longitudes 330° to 345°

J. L. Caswell, G. A. Fuller, J. A. Green, A. Avison, S. L. Breen, S. P. Ellingsen, M. D. Gray, M. R. Pestalozzi, L. Quinn, M. A. Thompson and M. A. Voronkov

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 417, issue 3, pages 1964-1995
Published in print November 2011 | ISSN: 0035-8711
Published online October 2011 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.19383.x
The 6-GHz methanol multibeam maser catalogue – III. Galactic longitudes 330° to 345°

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We present results from the third portion of the Methanol Multibeam Galactic plane survey of masers at 6668 MHz. It covers the longitude range 330°–345°, yielding 198 masers, of which more than 40 per cent are new discoveries. The maser population in this longitude range is the densest anywhere in the Galaxy, with many sources delineating a large portion of the Norma spiral arm close to its tangent point, and a cluster defining the southern tangent point of the 3-kpc ring. Two sources lie outside the solar circle, on the far side of the Galaxy, more than 15 kpc away.

Keywords: masers; surveys; stars: formation; ISM: molecules; Galaxy: structure

Journal Article.  11217 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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