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arXiv · 0904.4303

High-Mass Star Formation in the Near and Far 3-KPC Arms

J. A. Green·N. M. McClure-Griffiths·J. L. Caswell·S. P. Ellingsen·G. A. Fuller·L. Quinn·M. A. Voronkov
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Abstract

We report on the presence of 6.7-GHz methanol masers, known tracers of high-mass star formation, in the 3-kpc arms of the inner Galaxy. We present 49 detections from the Methanol Multibeam Survey, the largest Galactic plane survey for 6.7-GHz methanol masers, which coincide in longitude, latitude and velocity with the recently discovered far-side 3-kpc arm and the well known near-side 3-kpc arm. The presence of these masers is significant evidence for high-mass star formation actively occurring in both 3-kpc arms.

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J. A. Green, N. M. McClure-Griffiths, J. L. Caswell, S. P. Ellingsen, G. A. Fuller, L. Quinn, M. A. Voronkov. 2009-04-28. High-Mass Star Formation in the Near and Far 3-KPC Arms. https://doi.org/10.1088/0004-637x%2F696%2F2%2Fl156

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