On the initial mass function - The mass spectrum of young OB associations

Details On the initial mass function - The mass spectrum of young OB associations On the initial mass function - The mass spectrum of young OB associations

Jul 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....87..339c&link_type=abstract

Astronomy and Astrophysics, vol. 87, no. 3, July 1980, p. 339-342.

Astronomy and Astrophysics

Astrophysics

20

B Stars, O Stars, Stellar Mass, Hertzsprung-Russell Diagram, Mass Distribution, Orion Constellation, Stellar Magnitude

Scientific paper

The uvby-beta data for the young associations Orion OBI, NGC 2264, alpha Persei, Scorpius, and Centaurus have been used to derive the initial mass function (IMF) for the mass range from 2.2 to 10 solar masses. This was done by calculating individual stellar masses, combining the position in the HR-diagram and theoretical isochrones. We have found that the upper IMF for all the associations could be approximated by a power law with the slope of 1.9.

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