2017
DOI: 10.1017/s1743921317010055
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Abstract: Ring−like sources of 6.7 GHz methanol maser emission were discovered a decade ago with the European VLBI Network. In the past years we have been incessantly working to understand the nature of these rings. In general, the methanol rings do not coincide with H II regions nor they show 22 GHz water maser emission. Here, we present a proper motion study over a time baseline up to 10.5 years for the first sub-sample of methanol maser rings. Our findings suggest that in three targets G23.207−00.377, G23.389+00.185,… Show more

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Cited by 2 publications
(1 citation statement)
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References 16 publications
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“…A follow-up study in the near-IR and mid-IR again found no evidence to support the idea that these rings trace protostellar disks (De Buizer et al 2012). Proper motion studies show that the ring of masers in G23.657-0.127 is expanding (Szymczak et al 2017) and while the interpretation is still unclear, it may be the result of a disk wind (Bartkiewicz et al 2017).…”
Section: Spatial and Kinematic Structuresmentioning
confidence: 97%
“…A follow-up study in the near-IR and mid-IR again found no evidence to support the idea that these rings trace protostellar disks (De Buizer et al 2012). Proper motion studies show that the ring of masers in G23.657-0.127 is expanding (Szymczak et al 2017) and while the interpretation is still unclear, it may be the result of a disk wind (Bartkiewicz et al 2017).…”
Section: Spatial and Kinematic Structuresmentioning
confidence: 97%