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18. Model Atmospheres for Hydrogen-Deficient White Dwarfs

Published online by Cambridge University Press:  14 August 2015

I. Bues
I. Bues*
Affiliation:
Institut für theoretische Physik und Sternwarte der Universität Kiel, Germany

Abstract

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The determination of atmospheric parameters for non-DA white dwarfs is investigated with the computed helium-rich model atmospheres by Bues (1970). Only poor predictions are possible from UBV colors alone for DB and DC stars. From uvby colors a determination of effective temperature is possible within 1000 K. Profiles of lines in different parts of the spectrum are necessary for better results.

A deficiency of metal abundances for the cooler non-DA stars is obtained.

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 42: White Dwarfs , 1971 , pp. 125 - 129
Copyright
Copyright © Reidel 1971 

References

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