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Detection of calcium abundance stratification in Ap stars

Published online by Cambridge University Press:  26 May 2016

J. Babel
J. Babel*
Affiliation:
Service d'Astrophysique, Centre d'Etudes de Saclay, 91191 Gif-sur-Yvette, France

Abstract

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We report the discovery of a systematic and large calcium abundance stratification in cold Ap stars. These detections are in very good agreement with diffusion theory and set stringent upper limits on turbulent processes.

Type
5. Be Stars: Spectroscopy and Photometry
Information
Symposium - International Astronomical Union , Volume 162: Pulsation, Rotation and Mass Loss in Early-Type Stars , 1994 , pp. 333 - 334
Copyright
Copyright © Kluwer 1994 

References

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