Proc. IAU volume 13, issue S336, P301-302 2017 DOI: 10.1017/s1743921317010699 View full text
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D. J. van der Walt, J.-M. Morgan, J. O. Chibueze, Q. Zhang

Abstract: AbstractWe present the results of sub-millimetre observations on three periodic methanol maser sources. Our results indicate that there are geometric differences between some periodic methanol masers which have different variability profiles.