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On the massive star-forming capacity of molecular clouds
The Astrophysical Journal1994Vol. 436, pp. 795–795
Citations Over TimeTop 16% of 1994 papers
Abstract
Assuming that photoionization is the self-limiting process for continued star formation, we estimate the maximum number of massive (OB) stars that can form within a molecular cloud. The most efficient cloud destruction mechanism in the early stages of H II region evolution is the evaporation of the cloud by stars located near the cloud boundary. The maximum number of OB stars is of order 1 per 104 solar mass of average molecular gas, or 10 per 104 solar mass of dense molecular gas. The resulting star-forming efficiencies within cloud complexes range from 2% to 16% depending on both the location of the stars in the cloud and the details of the initial mass function, with an overall value of about 5% for average molecular gas.
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