PoS - Proceedings of Science
Volume 344 - 14th European VLBI Network Symposium & Users Meeting (EVN2018) - Stellar Evolution Session 2
Multiepoch observation of periodic methanol maser in G107.298+5.639
M. Olech,* M. Szymczak, P. Wolak, A. Bartkiewicz
*corresponding author
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Pre-published on: February 19, 2019
Published on: October 09, 2019
Abstract
In recent years a small group of methanol maser sources showing periodic variability have been identified. There is ongoing discussion on causes of this type of behavior, but none of the explanations are satisfactory. Discovery of source G107.298+5.639 showing alternating and periodic flares of 6.7GHz methanol and 22GHz water vapor masers can give us a clue to processes leading to observed periodicity. Recently we confirmed OH maser periodicity in this object. Result of multiepoch EVN observations of methanol emission in G107.298 will be presented.
DOI: https://doi.org/10.22323/1.344.0035
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