# The diversity of methanol maser morphologies from VLBI observations

@article{Bartkiewicz2009TheDO,
title={The diversity of methanol maser morphologies from VLBI observations},
author={Anna Bartkiewicz and Marian Szymczak and Huib Jan van Langevelde and A. M. S. Richards and Yale Center for Astronomy and Nicolaus Copernicus University and Poland Joint Institute for Vlbi in Europe and Dwingeloo and The Netherlands Sterrewacht Leiden and Leiden University and Theoretical Institute for Advanced Research in Astrophysics and Alan Turing Building and University of Manchester and UK Department of Physics and Astronomy and University of New Mexico and USA. National Radio Astronomy Observatory and Socorro and Usa},
journal={Astronomy and Astrophysics},
year={2009},
volume={502},
pages={155-173}
}
Context. The 6.7 GHz methanol maser marks an early stage of high-mass star formation, but the origin of this maser is currently a matter of debate. In particular it is unclear whether the maser emission arises in discs, outflows or behind shocks running into rotating molecular clouds. Aims. We investigated which structures the methanol masers trace in the environment of high-mass protostar candidates by observing a homogenous sample of methanol masers selected from Torun surveys. We also probed… Expand
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