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Continuum Emission Associated with 6.7-GHz Methanol Masers
journal contribution
posted on 2023-05-16, 07:36 authored by Simon EllingsenSimon Ellingsen, Norris, RP, Peter McCullochPeter McCullochWe have used the Australia Telescope Compact Array (ATCA) to search for continuum emission toward three strong 6.7-GHz methanol maser sources. For two of the sources, G 339.88 - 1.26 and NGC 6334F (G 351.42 + 0.64), we detect continuum emission closely associated with the methanol masers. A further three clusters of masers show no radio continuum emission above our sensitivity limit of 1-5 mJy. We find the position of the 6.7-GHz methanol masers in G 339.88 - 1.26 to be consistent with the hypothesis that the masers lie in the circumstellar disc surrounding a massive star. We also argue that one of the clusters of methanol masers in NGC 6334F provides indirect observational support for the circumstellar disc hypothesis.
History
Publication title
Royal Astronomical Society. Monthly NoticesVolume
279Pagination
101-107ISSN
0035-8711Department/School
School of Natural SciencesPublisher
Blackwell Publishing LtdPlace of publication
LondonRepository Status
- Restricted