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12.2-GHz methanol maser MMB follow-up catalogue – III. Longitude range 10° to 20°

journal contribution
posted on 2023-05-17, 23:28 authored by Breen, SL, Simon EllingsenSimon Ellingsen, Caswell, JL, Green, JA, Voronkov, MA, Avison, A, Fuller, GA, Quinn, LJ, Titmarsh, A
We present the third instalment of a series of catalogues presenting 12.2-GHz methanol maser observations made towards each of the 6.7-GHz methanol masers detected in the Methanol Multibeam (MMB) Survey. The current portion of the catalogue includes the Galactic longitude region 10◦ to 20◦, where we detect 47 12.2-GHz methanol masers towards 99 6.7-GHz targets. We compare the occurrence of 12.2-GHz methanol masers with water maser emission, for which all 6.7-GHz methanol masers in the 6◦ to 20◦ longitude range have now been searched. We suggest that the water masers follow a more complicated evolutionary scenario than has been found for the methanol andOHmasers, likely due to their different pumping mechanisms. Comparisons of the 6.7-GHz methanol to OH maser peak flux density ratio and the luminosity of the associated 12.2-GHz sources suggests that the 12.2-GHz maser luminosity begins to decline around the time that an OH maser becomes detectable.

History

Publication title

Monthly Notices of the Royal Astronomical Society

Volume

438

Issue

4

Pagination

3368-3382

ISSN

0035-8711

Department/School

School of Natural Sciences

Publisher

Blackwell Publishing Ltd

Place of publication

9600 Garsington Rd, Oxford, England, Oxon, Ox4 2Dg

Rights statement

Copyright 2014 Royal Astronomical Society

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the physical sciences

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