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Line Profile microvariability and wind structure for OB stars

Published online by Cambridge University Press:  12 July 2011

Alexander F. Kholtygin ,
Sergei N. Fabrika  and
Natalia P. Sudnik
Alexander F. Kholtygin
Affiliation:
Astronomical Institute, Saint-Petersburg University, 198504, Petrodvoretz, Russia email: [email protected]
Sergei N. Fabrika
Affiliation:
Special Astrophysical Observatory, Nizhnii Arxyz, Russia
Natalia P. Sudnik
Affiliation:
Astronomical Institute, Saint-Petersburg University, 198504, Petrodvoretz, Russia email: [email protected]
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Abstract

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We report the results of a search for line profile variability (LPV) in the spectra of OB stars. The wavelets were used for looking for the irregular LPV in spectra of program stars. We connect the appearance of irregular details in the LPV with the formation and dissipation of the small-scale substructures (clumps) in the wind.

Keywords

stars: early-typestars: variables: otherline: profilesstars: windsoutflows
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S272: Active OB stars: structure, evolution, mass loss, and critical limits , July 2010 , pp. 200 - 201
Copyright
Copyright © International Astronomical Union 2011

References

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Kholtygin, A. F., Burlakova, T. E., Fabrika, S. N., Valyavin, G. G. et al. 2006, Astron. Rep., 50, 887CrossRefGoogle Scholar
Fullerton, A. W., Gies, D. R., & Bolton, C. T. 1996, ApJS, 103, 475CrossRefGoogle Scholar