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Optical spectroscopic variability of possible Wolf-Rayet binaries

Published online by Cambridge University Press:  25 May 2016

Aaron Flores
Affiliation:
Instituto Nacional de Astrofisica Optica y Electronica, Mexico
Octavio Cardona
Affiliation:
Instituto Nacional de Astrofisica Optica y Electronica, Mexico
Gloria Koenigsberger
Affiliation:
Instituto de Astronomia, UNAM, Mexico

Extract

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There are a number of Wolf-Rayet stars which, based on their emission line profile variations, were proposed to be WR+cc systems (Firmani et al. 1980; Cherepashchuk & Aslanov 1984). However, recent intensive monitoring with different observational techniques, has given rise to alternative explanations for the variability in these WR stars including the presence of a disk, rotating jet-like structures (Vreux et al. 1992), and corotating interaction regions (St-Louis et al. 1995).

Type
Part 1. Basic observational properties of Wolf-Rayet stars and other hot massive stars
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

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