High-velocity flows in the NGC 7538 molecular cloud

Details High-velocity flows in the NGC 7538 molecular cloud High-velocity flows in the NGC 7538 molecular cloud

Apr 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...339..222k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 339, April 1, 1989, p. 222-230.

Astronomy and Astrophysics

Astronomy

41

Flow Velocity, H Ii Regions, Infrared Sources (Astronomy), Molecular Clouds, Star Formation, Carbon Monoxide, Energy Dissipation, Kinematics, Reflection Nebulae, Signal To Noise Ratios, Turbulence Effects

Scientific paper

Observations of the high-velocity flows in the high-density core region of the molecular cloud NGC 7538 are reported. The core region is found to be a very active site of the flows. Three such flows, associated with IRS 1, IRS 9, and IRS 11, and one possible candidate are found. The energy input into the core region from the flows is so large that it can compensate for the energy dissipation by turbulence in the region for at least several tens of thousands of years. If the conversion efficiency is near 100 percent, the flows will destroy the core region.

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