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The Colour Excess Scalf and Intrinsic Colour Properties of the Longer Period Cepheids

Published online by Cambridge University Press:  14 August 2015

R. Canavaggia ,
P. Mianes  and
J. Rousseau
R. Canavaggia
Affiliation:
Observatoire de Paris, France
P. Mianes
Affiliation:
Observatoire de Lyon, France
J. Rousseau
Affiliation:
Observatoire de Lyon, France

Abstract

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Following a discussion of two recent papers by Schmidt (1973, 1975), we conclude that for the large amplitude, longer period Cepheids (log P greater than about 1.1), the small colour excesses derived from the six-colour photometry (traditional method or Parsons method) are to be preferred to the large colour excesses derived from the γ-index photometry (Kraft's scale).

Type
Part III/Derivation of Abundances Through Photometric and Spectroscopic Methods
Information
Symposium - International Astronomical Union , Volume 72: Abundance Effects in Classification , 1976 , pp. 95 - 96
Copyright
Copyright © Reidel 1976 

References

Schmidt, E. G.: 1973, Monthly Notices Roy. Astron. Soc. 163, 67.CrossRefGoogle Scholar
Schmidt, E. G.: 1975, Monthly Notices Roy. Astron. Soc. 170, 39P.CrossRefGoogle Scholar