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Identification and Analysis of Infrared Lines of WC Stars

Published online by Cambridge University Press:  03 August 2017

P.R.J. Eenens ,
P.M. Williams  and
R. Wade
P.R.J. Eenens
Affiliation:
1Department of Astronomy, University of Edinburgh, Blackford Hill, Edinburgh EH9 3HJ, United Kingdom
P.M. Williams
Affiliation:
2Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, United Kingdom
R. Wade
Affiliation:
3Joint Astronomy Centre, 665 Komohana St, Hilo, HI 96720, USA

Abstract

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We present 1 – 3.4 μm spectra of six Wolf-Rayet stars: WR 146 (WC4), WR 111 (WC5), WR 86 (WC7), WR 140 (WC7+O4), WR 135 (WC8) and WR 88 (WC9). Examination of the relative strengths of the emission lines has enabled us to make over 20 new line identifications. Recombination analyses of the carbon and helium lines yield C/He abundance ratios much in excess of the solar value and correlated with spectral subtype.

Type
Session II. Atmospheres
Information
Symposium - International Astronomical Union , Volume 143: Wolf–Rayet Stars and Interrelations with other Massive Stars in Galaxies , 1991 , pp. 99
Copyright
Copyright © Kluwer 1991