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Observed Relations Between Physical Properties and MK Classification as Functions of Metal Abundance for F5-K4 Stars

Published online by Cambridge University Press:  14 August 2015

M. Grenon
M. Grenon*
Affiliation:
Observatoire de Genève, Switzerland

Abstract

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The Geneva photometric system has been calibrated in terms of [M/H], θeff, Mv in the spectral range F5 to K4. As the spectral type is a datum generally available, we derive empirical relations showing the coupling of θeff and [M/H] at given spectral type and luminosity class. Similar relations are offered for the absolute magnitudes and provide a more accurate means for deriving spectroscopic parallaxes. Systematic effects on the estimation of the luminosity class are also shown.

Type
Part III/Derivation of Abundances Through Photometric and Spectroscopic Methods
Information
Symposium - International Astronomical Union , Volume 72: Abundance Effects in Classification , 1976 , pp. 75 - 78
Copyright
Copyright © Reidel 1976 

References

Rufener, F.: 1975 ‘Catalogue’, Astron. Astrophys. (in preparation).Google Scholar
Grenon, M.: 1975a, Dudley Obs. Report , 9, 413.Google Scholar
Grenon, M.: 1975b, Thesis (in preparation).Google Scholar