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Paper: VLA Imaging of Class I Methanol Masers at 7 MM with Angular Resolution 0 to 4.2"
Volume: 144, Radio Emission from Galactic and Extragalactic Compact Sources, IAU Colloquium 164
Page: 255
Authors: Slysh, V. I.; Kogan, L.
Abstract: Eight Class I methanol masers were imaged at 44 GHz with A--configuration of the VLA providing angular resolution 0 to 4.2". The images show a distribution of unresolved maser spots forming pairs in simple structure sources, and a distribution of pair clusters in complex sources. We found that the maser pairs are associated with hot, dense gas cores of sub--stellar masses. In complex sources the cores were found over the whole extent of the host molecular clouds.
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