12.2-GHz methanol and 1.6-GHz hydroxyl masers associated with new 6.7-GHz methanol masers
Open Access
- 15 July 1994
- journal article
- research article
- Published by Oxford University Press (OUP) in Monthly Notices of the Royal Astronomical Society
- Vol. 269 (2) , 257-264
- https://doi.org/10.1093/mnras/269.2.257
Abstract
18 new 12.2-GHz methanol masers and eight new 1.6-GHz hydroxyl masers have been detected towards 66 6.7-GHz methanol masers discovered in recent searches of infrared sources. The newly detected hydroxyl masers in IRAS 17589 – 2312 appear to have turned on in the last 15 years. The masers seen in both methanol transitions in IRAS 15122 – 5801 were observed to flare and decay on a time-scale of months.Keywords
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