Proc. IAU volume 13, issue S336, P41-44 2017 DOI: 10.1017/s1743921317010523 View full text
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M. Szymczak, M. Olech, R. Sarniak, P. Wolak, A. Bartkiewicz

Abstract: AbstractHigh-mass young stellar objects (HMYSO) displaying methanol maser flux variability probably trace a variety of phenomena such as accretion events, magnetospheric activity, stellar flares and stellar wind interactions in binary systems. A long-term monitoring of the 6.7 GHz methanol line in a large sample of HMYSOs has been undertaken to characterize the variability patterns and examine their origins. The majority of the masers show significant variability on time-scales between a week and a few years. …

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