The 6-GHz methanol multibeam maser catalogue IV. Galactic longitudes 186deg-330deg including the Orion-Monoceros region

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

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Abstract

We present the fourth portion of a Galactic plane survey of methanol masers at 6668 MHz, spanning the longitude range 186°–330°. We report 207 maser detections, 89 new to the survey. This completes the southern sky part of the methanol multibeam survey and includes a large proportion of new sources, 43 per cent. We also include results from blind observations of the Orion–Monoceros star-forming region, formally outside the latitude range of the methanol multibeam survey; only the four previously known methanol emitting sites were detected, of which we present new positions and spectra for masers at Orion A (south) and Orion B, obtained with the Multi-Element Radio Linked Interferometer Network (MERLIN) array.
Original languageEnglish
Pages (from-to)3108-3125
Number of pages18
JournalMonthly Notices of the Royal Astronomical Society
Volume420
Issue number4
DOIs
Publication statusPublished - 1 Mar 2012

Keywords

  • masers, surveys, stars: formation

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