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The Variability of the λ5200 Feature in CP2 Stars

Published online by Cambridge University Press:  12 April 2016

H.M. Maitzen  and
H. Hensbergb
H.M. Maitzen
Affiliation:
Institut fur Astronomie, Universität WienTurkenschanzstrasse 17 A-1180 Vienna, Austria
H. Hensbergb
Affiliation:
Astrofysisch Instituut, Vrije Universiteit BrusselPleinlaan 2 B-1050 Brussels, Belgium

Abstract

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32 stars have been checked for Δa variability, with the purpose to learn which factor(s) influence the strength of the λ 5200 continuum depression. One third of the stars appear to be constant within a range of 0.005 mag. The results on the remaining ones indicate that maximum strength is related to at least one of the magnetic poles, but spectral inhomogeneities are almost certainly responsible for the largest amplitudes.

Type
Section II - Systematics, Photometry
Information
International Astronomical Union Colloquium , Volume 90: Upper Main Sequence Stars with Anomalous Abundances , 1986 , pp. 183 - 187
Copyright
Copyright © Reidel 1986

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