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Induced Star Formation in M17: High Resolution NH3 and IR Observations
Published online by Cambridge University Press: 04 August 2017
Extract
A VLA radio continuum study of the H II region M17 (Felli, Churchwell and Massi, 1984) has shown the presence of an elongated sharp arc structure in the South Bar of the nebula, in a region of heavy obscuration. The arc has been interpreted as an ionization boundary, viewed edge on, located between the diffuse H II region, to the east, and a dense component of the extended molecular cloud, to the west. About 3″ to the west of this arc, an ultra-compact H II region has been found. This has a shell type structure, a linear diameter of 0.004 pc and probably is the result of induced star formation in the molecular cloud produced by the pressure front preceding the ionization front.
- Type
- I. Star Forming Processes in the Solar Neighborhood
- Information
- Symposium - International Astronomical Union , Volume 115: Star Forming Regions , 1987 , pp. 141 - 142
- Copyright
- Copyright © Reidel 1987