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New WHT+FOS optical spectra of WR stars in M33 & M31

Published online by Cambridge University Press:  07 August 2017

A J Willis ,
H Schild  and
L J Smith
A J Willis
Affiliation:
Department of Physics & Astronomy University College London Gower Street London WC1E 6BT, UK
H Schild
Affiliation:
Department of Physics & Astronomy University College London Gower Street London WC1E 6BT, UK
L J Smith
Affiliation:
Department of Physics & Astronomy University College London Gower Street London WC1E 6BT, UK

Extract

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We have secured new optical spectra of 11 WR stars in M33 and M31 using the WHT+Faint Object Spectrograph, covering λλ4800–9800å at 14å and λλ3500–5000å at 7å resolution. In our M33 sample five stars are classified as WC4–5 from their C IV λ5800/C III λ5696 line strengths (viz MC 6, MC 53, MC 79, MC 24 and MC 71), one as WC6 (MC 65), one is a WNE-CE star (MC 48) and one is possibly an intermediate WC4-WO star (MC 78). Of the two stars observed in M31, one is classified as WC4–5 (MS 11) and the other as WC7-8 (MS 4).

Type
Poster Papers
Information
Symposium - International Astronomical Union , Volume 149: The Stellar populations of Galaxies , 1992 , pp. 505
Copyright
Copyright © Kluwer 

References

Barlow, M.J. & Hummer, D.G., 1982, IAU Symp. No. 99 , p 387.CrossRefGoogle Scholar
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