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Periodic class II methanol masers in G9.62+0.20E
D. J. van der Walt, S. Goedhart, M. J. Gaylard
We present the light curves of the 6.7 and 12.2 GHz methanol masers in the star forming region G9.62+0.20E for a time span of more than 2600 days. The earlier reported period of 24…
Short-period variability in the Class II methanol maser source G12.89+0.49 (IRAS 18089-1732)
S. Goedhart, M. C. Langa, M. J. Gaylard +1
Time series are presented for the class II methanol maser source G12.89+0.49, which has been monitored for nine years at the Hartebeesthoek Radio Astronomy Observatory. The 12.2 an…
Possible magnetic field variability during the 6.7 GHz methanol maser flares of G09.62+0.20
W. H. T. Vlemmings, S. Goedhart, M. J. Gaylard
(Abridged) Recently, the magnetic field induced Zeeman splitting was measured for the strongest known 6.7 GHz methanol maser, which arises in the massive star forming region G09.62…