Browsing by Subject "H ii regions"
Now showing items 1-3 of 3
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New periodic 6.7 GHz class II methanol maser associated with G358.460−0.391
(Oxford Univ Press, 2015)Eight new class II methanol masers selected from the 6.7 GHz Methanol Multibeam survey catalogues I and II were monitored at 6.7 GHz with the 26 m Hartebeesthoek Radio Astronomy Observatory radio telescope for three years ... -
Periodic class II methanol masers in G9.62+0.20E
(Oxford Univ Press, 2009)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 d. The earlier reported period of 244 d is confirmed. The results of monitoring ... -
Short-period variability in the Class II methanol maser source G12.89+0.49 (IRAS 18089-1732)
(Oxford Univ Press, 2009)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 and 6.7 GHz methanol masers were seen to ...