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

Green, J.A., Caswell, J.L., Fuller, G.A., Avison, A., Breen, S.L., Ellingsen, S.P., Gray, M.D., Pestalozzi, M., Quinn, L., Thompson, Mark and Voronkov, M. A. (2012) The 6-GHz methanol multibeam maser catalogue IV. : Galactic longitudes 186deg-330deg including the Orion-Monoceros region. Monthly Notices of the Royal Astronomical Society (MNRAS), 420 (4). pp. 3108-3125. ISSN 0035-8711
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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.


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