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Infrared Lines in Peculiar Emission-Line Stars

Published online by Cambridge University Press:  14 August 2015

Y. Andrillat  and
L. Houziaux
Y. Andrillat
Affiliation:
Observatoire de Haute-Provence (CNRS), France
L. Houziaux
Affiliation:
Université de Mons, Département d'Astrophysique, Belgium

Abstract

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An image-tube Cassegrain spectrograph, equipped with an S-1 photocathode enabled us to obtain infrared spectra of peculiar emission-line objects, as V 1016 Cyg, HBV 475, HD 51585, HD 45677, XX Oph and CI Cyg. Many of these objects display emission lines of H I, He I, He II, O I, N I, Ca II [S II] [S III], [Fe II]. The line intensities can be used together with data from other parts of the spectrum to determine relative abundances of these ions in the shells of these objects, which may be at a critical phase of their evolution.

Type
Part IV/Abundance Effects in Spectral Classification
Information
Symposium - International Astronomical Union , Volume 72: Abundance Effects in Classification , 1976 , pp. 155 - 156
Copyright
Copyright © Reidel 1976