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Wavelet analysis of variable Wolf-Rayet emission lines

Published online by Cambridge University Press:  07 August 2017

Sébastien Lépine
Sébastien Lépine*
Affiliation:
Département de Physique, Université de Montréal, C.P. 6128, Succ. A, Montreal, QC, H3C 3J7, Canada, and Observatoire du Mont-Mégantic

Extract

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A new powerful mathematical tool for the analysis of structures on spectral lines is presented: wavelet analysis. Applied to variable Wolf-Rayet emission lines, it allows one to extract efficiently and in an objective way, individual sub-structures and compare some of their physical properties: integrated flux f, velocity dispersion σv, projected velocity v and acceleration a.

Type
Session I - Basic parameters, properties of single Wolf-Ray et stars
Information
Symposium - International Astronomical Union , Volume 163: Wolf-Rayet Stars: Binaries, Colliding Winds, Evolution , 1995 , pp. 60 - 61
Copyright
Copyright © Kluwer 1995 

References

Daubechies, I. 1992, Ten Lectures on Wavelets , SIAM, Philadelphia Google Scholar
Farge, M. 1992, Ann.Rev.Fluid Mech. 24, 395 Google Scholar
Robert, C. 1992, PhD thesis, Université de Montréal Google Scholar
Moffat, A.F.J., Lépine, S., Henriksen, R.N., Robert, C. 1994, Ap Space Sci. in press Google Scholar
Lépine, S. 1994, in: Moffat, A.F.J., Owocki, S.P., Fullerton, A.W. & St-Louis, N. (eds), Instability and Variability of Hot-Star Winds, (Dordrecht: Kluwer), Ap Space Sci. in press Google Scholar