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Vertical Force Law Kz and Chemical Gradient in the Galaxy

Published online by Cambridge University Press:  12 April 2016

L. Martinet  and
M. Grenon
L. Martinet
Affiliation:
Observatoire de Geneve
M. Grenon
Affiliation:
Observatoire de Geneve

Extract

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At Tbilissi, Prof. Blaauw (1975) reported on results of uvby photometry of F-type stars and showed a relation between the quantity Δm and the distance z to the galactic plane. This relationship could be interesting if Δm1 is a non ambiguous indicator of metallicity. It was found that the mean relative metal abundance decreases by a factor of about one third between 0 and 700 pc. The same type of relationship was obtained by M. Grenon (1976) for K giants and shows a lower variation of the metallicity with z.

Type
Part IV: Kinematics and Dynamical Evolution of the Galaxy
Information
International Astronomical Union Colloquium , Volume 45: Chemical and Dynamical Evolution of our Galaxy , September 1977 , pp. 289 - 291
Copyright
Copyright © Geneva Observatory 1977

References

Blaauw, A. 1975 in Proceedings of the Third European Astronomical Meeting, 351, Abastumani Astrophysical Observatory Kharadze, E.K., editorGoogle Scholar
Grenon, M. 1977 Highlights of Astronomy, 4, part II, 55 Miiller, Ed.A., editorCrossRefGoogle Scholar
Oort, J. 1960 Bull. ketron. Neth. 494, 45 Google Scholar