We 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, G339.88-1.26 and NGC 6334F (G351.42+0.64), we detect continuum emission closely associated with the methanol masers. A further three clusters of masers showed no radio continuum emission above our sensitivity limit of 1-5 mJy. We find the position of the 6.7-GHz methanol masers in G339.88-1.26 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.
Cite
@article{arxiv.astro-ph/9509068,
title = {Continuum emission associated with 6.7-GHz methanol masers},
author = {S. P. Ellingsen and R. P. Norris and P. M. McCulloch},
journal= {arXiv preprint arXiv:astro-ph/9509068},
year = {2015}
}
Comments
8 pages including 2 figures, using LaTeX formatted with mn.sty, accepted for publication in MNRAS