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Methanol and excited OH masers in W49N as observed using EVN
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Methanol and excited OH masers in W49N as observed using EVN
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Journal Article
Methanol and excited OH masers in W49N as observed using EVN
2022
Overview
We imaged the excited OH maser line at 6.035 GHz associated with the 6.7 GHz methanol masers in a selected sample of high-mass young stellar objects using the European VLBI Network. The excited OH emission was found in a survey of methanol maser sources carried out since 2018 with the Torun 32-m telescope. The overlap of radial velocities of spectral features of methanol and excited OH suggested that both lines arose in the same volume of gas, therefore, we verified this hypothesis with the interferometric data. Here, we present the first images at the milliarcsecond scale of both maser transitions and identify the Zeeman pairs at the ex-OH line estimating the strength of the magnetic field in G43.149+00.013 (W49N).
Publisher
Cambridge University Press
Subject
