Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions

S. L. Breen*, S. P. Ellingsen, Y. Contreras, J. A. Green, J. L. Caswell, J. B. Stevens, J. R. Dawson, M. A. Voronkov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)
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Abstract

Recently, a comparison between the locations of 6.7-GHz methanol masers and dust continuum emission has renewed speculation that these masers can be associated with evolved stars. The implication of such a scenario would be profound, especially for the interpretation of large surveys for 6.7-GHz masers, individual studies where high-mass star formation has been inferred from the presence of 6.7-GHz methanol masers and for the pumping mechanisms of these masers. We have investigated the two instances where 6.7-GHz methanol masers have been explicitly suggested to be associated with evolved stars, and we find the first to be associated with a standard high-mass star formation region, and the second to be a spurious detection.We also find no evidence to suggest that the methanol maser action can be supported in the environments of evolved stars.We thereby confirm their exclusive association with high-mass star formation regions.

Original languageEnglish
Pages (from-to)524-530
Number of pages7
JournalMonthly Notices of the Royal Astronomical Society
Volume435
Issue number1
DOIs
Publication statusPublished - Oct 2013
Externally publishedYes

Bibliographical note

Copyright 2013 The Authors. First published in Monthly Notices of the Royal Astronomical Society, 435(1), 524-530. The original publication is available at https://doi.org/10.1093/mnras/stt1315, published by Oxford University Press on behalf of the Royal Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • ISM :
  • Masers
  • Molecules
  • Stars :Formation

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