Abstract
Considerable effort has been expanded on both of these topics ever since the binary nature of most bright WR stars was revealed by radial velocity and eclipse observations and the basic correlation of line-width with ionization potential was discovered. I would like to describe briefly the methods of detection of binaries, to review the percentage of known binaries and to summarize the mass determinations that result from the study of WR binaries.
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Kuhi, L.V. (1973). Wolf-Rayet Binaries and Atmospheric Stratification. In: Bappu, M.K.V., Sahade, J. (eds) Wolf-Rayet and High-Temperature Stars. International Astronomical Union/Union Astronomique Internationale, vol 49. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-2511-9_11
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DOI: https://doi.org/10.1007/978-94-010-2511-9_11
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