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On the Relationship of UC H II Regions and Class II Methanol Masers: I. Source Catalogs
Bo Hu, Karl M. Menten, Yuanwei Wu +5
We conducted VLA C-configuration observations to measure positions and luminosities of Galactic Class II 6.7 GHz methanol masers and their associated ultra-compact H II regions. Th…
Discovery of periodic and alternating flares of the methanol and water masers in G107.298+5.639
M. Szymczak, M. Olech, P. Wolak +2
Methanol and water vapour masers are signposts of early stages of high-mass star formation but it is generally thought that due to different excitation processes they probe distinc…
European VLBI Network imaging of 6.7 GHz methanol masers
Anna Bartkiewicz, Marian Szymczak, Huib J. van Langevelde
Methanol masers at 6.7 GHz are well known tracers of high-mass star-forming regions. However, their origin is still not clearly understood. We aimed to determine the morphology and…