A highly variable methanol maser in G111.256-0.770

Abstract

G111.256-0.770 is a high-mass young stellar object associated with a weak 6.7 GHz methanol maser showing strong variability. We present results of a multi-epoch monitoring program of the target, conducted with the Torun 32 m telescope for more than a decade. We found that the isotropic maser luminosity varied by a factor 16 on a timescale of 5-6 yr and individual features showed small amplitude short-lived (about 0.2 yr) bursts superimposed on higher amplitude slow (>5 yr) variations.

arXiv comment7 pages, 10 figures, 3 tables, accepted for publication in MNRAS

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Cited by in corpus (7)

• ATLASGAL -- physical parameters of dust clumps associated with 6.7 GHz methanol masers
• Milliarcsecond structure and variability of methanol maser emission in three high-mass protostars
• Discovery of recurrent flares of 6.7 GHz methanol maser emission in Cepheus A HW2
• Proper Motions of Water Masers in the Star-forming Region IRAS 23139+5939
• Periodic 6.7 GHz $\mathrm{C}{\mathrm{H}}_3\mathrm{OH}$ maser emission in G353.273+0.641: First candidate for a pulsating high-mass protostar
• Infrared observations of the flaring maser source G358.93-0.03 -- SOFIA confirms an accretion burst from a massive young stellar object
• Simultaneous 22 GHz Water and 44 GHz Methanol Masers Survey of Ultracompact HII Regions