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arXiv · 0803.2232

A high-sensitivity 6.7 GHz methanol maser survey toward H2O sources

Y. Xu·J. J. Li·K. Hachisuka·J. D. Pandian·K. M. Menten·C. Henkel
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Abstract

We present the results of a high sensitivity survey for 6.7 GHz methanol masers towards 22 GHz water maser using the 100 m Efflesberg telescope. A total of 89 sources were observed and 10 new methanol masers were detected. The new detections are relatively faint with peak flux densities between 0.5 and 4.0 Jy. A nil detection rate from low-mass star forming regions enhances the conclusion that the masers are only associated with massive star formation. Even the faintest methanol maser in our survey, with a luminosity of 1.1 $10^{-9} L_\odot$ is associated with massive stars as inferred from its infrared luminosity.

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Y. Xu, J. J. Li, K. Hachisuka, J. D. Pandian, K. M. Menten, C. Henkel. 2008-03-16. A high-sensitivity 6.7 GHz methanol maser survey toward H2O sources. https://doi.org/10.1051/0004-6361:200809472

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