Self-regulated star formation and the evolution of stellar systems |
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| Authors: | Th Henning B Stecklum |
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| Institution: | (1) Universitäts-Sternwarte Jena, GDR |
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| Abstract: | In this paper we estimate the star formation efficiency using the assumption that star formation continues until the radiation pressure disrupts the cloud. The results that in the case of low/mediummass star formation the efficiency could be about five times higher than in the case of high-mass star formation.For a three-component star-forming system (low/medium-mass stars, high-mass stars, gas) we investigate the temporal behaviour and the final star formation efficiency. We can show that the efficiency in 104
M
 clouds is higher than in 106
M
clouds. This supports our view that bound stellar systems form from medium-mass clouds, whereas OB associations form in the cores of giant molecular clouds. Furthermore, the effect of induced high-mass star formation may cause a change of the mass spectrum during the formation of an OB association.Paper presented at a Workshop on  The Role of Dust in Dense Regions of Interstellar Matter , held at Georgenthal, G.D.R., in March 1986. |
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