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Symposium - International Astronomical Union (1)

International Astronomical Union (1)

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Line-profile variability of EZ CMa
L. Georgiev, M. M. Ivanov
Journal:

Symposium - International Astronomical Union / Volume 163 / 1995

Published online by Cambridge University Press:

07 August 2017, pp. 54-55

Print publication:

1995
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CCD spectra for the unusual Wolf-Rayet star EZ CMa (WR6) are presented. The analysis of the profile changes of HeII lines shows a correlation between the gravity center of the line and the skewness (Robert et al. 1992). The fourth moment (kurtosis) changes with phase and looks epoch independent. These observable effects could be treated as manifestations of wind variability rather than consequence of orbital motion.