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Metal Abundances of Young Stellar Groups

Published online by Cambridge University Press:  14 August 2015

M. Grenon
M. Grenon*
Affiliation:
Geneva Observatory, Switzerland

Extract

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The metal abundances of young stellar groups in the solar vicinity are obtained from the photometric [Fe/H] ratios observed for the red giant group members. The definition of the groups has been rediscussed with the help of a sample of B5-A0 stars whose physical properties are derived by Cramer (1979). The young G3-K5 giants have been selected according to their spatial velocities and their age derived from the Geneva colours (Grenon 1978). They show the kinematics of A stars (Eggen 1963). The star concentrations coincide in both (U,V) planes (red giants and B & A stars) in the zones listed below with the value of the mean [Fe/H] and galactocentric distance, .

Type
August 28 Open Clusters
Information
Symposium - International Astronomical Union , Volume 85: Star Clusters , 1980 , pp. 231 - 232
Copyright
Copyright © Reidel 1980 

References

Eggen, O. J.: 1963, Astron. J. 68, 697.Google Scholar
Grenon, M.: 1978, Publ. Obs. Genève, 5.Google Scholar
Cramer, N., and Maeder, A.: 1979, Astron. Astrophys. (in press).Google Scholar