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Complications of Studies of Galactic Structure, Caused by Cp Stars

Published online by Cambridge University Press:  12 April 2016

L.O. Lodén  and
A. Sundman
L.O. Lodén
Affiliation:
Uppsala Observatory, S-751 20 Uppsala
A. Sundman
Affiliation:
Stockholm Observatory, S-133 36 Stockholm

Abstract

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When studying the distribution of stars and interstellar matter in the galactic environment, one relies upon objects which are numerous enough and also bright enough to constitute workable samples. A-type stars seem to be a natural choice, but a successful study then depends on the reliability of the spectroscopic distance determinations. Since chemical peculiarity affects a considerable fraction of the A-type main sequence stars we have found reason to investigate the reliability of luminosity estimates for stars of various types of peculiarity. The result indicates that peculiarity is a less serious problem than undetected multiplicity.

Type
VII. Photometric Variability and Evolutionary Status
Information
International Astronomical Union Colloquium , Volume 138: Peculiar versus Normal Phenomena in A-Type and Related Stars , 1993 , pp. 623 - 628
Copyright
Copyright © Astronomical Society of the Pacific 1993

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