Masers in star-forming regions associated with cold, bright IRAS sources

  • G. C. MacLeod
  • M. J. Gaylard
  • E. ScaliseJr.
  • V. A. Hughes
5. Masers in Star-Forming Regions (General)
Part of the Lecture Notes in Physics book series (LNP, volume 412)


Twenty-four regions of massive star-formation have been searched for OH, H2O, 6.6-GHz and 12.2-GHz CH3OH masers. Chosen from the IRAS Point Source Catalog by their infrared colours, these objects are the coolest objects in the catalog. Masers were detected towards all but two of these IRAS sources. Seven sources were observed in the 12CO (J=1−0) line and all show evidence of molecular outflow. In six of the CO sources we have found maser emission with peaks in both the red and the blue wings of the outflow. We infer that the conditions for masing in these regions are probably produced by the mechanical energy of the outflowing material.


Spectral Type Methanol Maser Blue Wing Molecular Outflow Point Source Catalog 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • G. C. MacLeod
    • 1
  • M. J. Gaylard
    • 1
  • E. ScaliseJr.
    • 2
  • V. A. Hughes
    • 3
  1. 1.Hartebeesthoel Radio Astronomy ObservatorySouth Africa
  2. 2.Instituto de Pesquisas EspaciaisBrazil
  3. 3.Queen's U. at KingstonCanada

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