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arXiv · 1207.5288

12.2-GHz methanol maser MMB follow-up catalogue - II. Longitude range 186 to 330 degrees

Shari Breen·Simon Ellingsen·James Caswell·James Green·Maxim Voronkov·Gary Fuller·Lyshia Quinn·Adam Avison
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Abstract

We present the second portion of a catalogue of 12.2-GHz methanol masers detected towards 6.7-GHz methanol masers observed in the unbiased Methanol Multibeam (MMB) Survey. Using the Parkes radio telescope we have targeted all 207 6.7-GHz methanol masers in the longitude range 186 to 330 degrees for 12.2-GHz counterparts. We report the detection of 83 12.2-GHz methanol masers, and one additional source which we suspect is thermal emission, equating to a detection rate of 40 per cent. Of the 83 maser detections, 39 are reported here for the first time. We discuss source properties, including variability and highlight a number of unusual sources. We present a list of 45 candidates that are likely to harbor methanol masers in the 107.0-GHz transition.

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Shari Breen, Simon Ellingsen, James Caswell, James Green, Maxim Voronkov, Gary Fuller, Lyshia Quinn, Adam Avison. 2012-07-23. 12.2-GHz methanol maser MMB follow-up catalogue - II. Longitude range 186 to 330 degrees. https://doi.org/10.1111/j.1365-2966.2012.21759.x

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