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Spectroscopic and interferometric approach for differential rotation in massive fast rotators

Published online by Cambridge University Press:  12 July 2011

Juan Zorec ,
Yves Frémat ,
Omar Delaa ,
Armando Domiciano de Souza ,
Philippe Stee ,
Denis Mourard ,
Lydia S. Cidale  and
Christophe Martayan
Juan Zorec
Affiliation:
Institut d'Astrophysique de Paris, UMR 7095 du CNRS, Univ.P&MC, France (zorec@iap.fr)
Yves Frémat
Affiliation:
Royal Observatory of Belgium, 3 av. Circulaire, 1180 Brussels, Belgium
Omar Delaa
Affiliation:
Laboratoire Fizeau, UNS-OCA-CNRS UMR6203, Parc Valrose, 06108 Nice Cedex 02, France
Armando Domiciano de Souza
Affiliation:
Laboratoire Fizeau, UNS-OCA-CNRS UMR6203, Parc Valrose, 06108 Nice Cedex 02, France
Philippe Stee
Affiliation:
Laboratoire Fizeau, UNS-OCA-CNRS UMR6203, Parc Valrose, 06108 Nice Cedex 02, France
Denis Mourard
Affiliation:
Laboratoire Fizeau, UNS-OCA-CNRS UMR6203, Parc Valrose, 06108 Nice Cedex 02, France
Lydia S. Cidale
Affiliation:
Facultad de Ciencias Astronómicas y Geofísicas, Universidad Nacional de La Plata, Argentina
Christophe Martayan
Affiliation:
European Organization for Astronomical Research in the Southern Hemisphere, Chile
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Abstract

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The coupling between the convective region in the envelope and rotation can produce a surface latitudinal differential rotation that may induce changes of the stellar geometry and on the spectral line profiles that it may be scrutinized spectroscopically and by interferometry.

Keywords

stars: rotationtechniques: spectroscopictechniques: interferometric
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. 103 - 105
Copyright
Copyright © International Astronomical Union 2011

References

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Frémat, Y., Zorec, J., Hubert, A.-M., & Floquet, M. 2005, A&A, 440, 305Google Scholar
Maeder, A., Georgy, C., & Meynet, G. 2008, A&A, 479, L37Google Scholar
Maeder, A. 2009, Physics, Formation and Evolution of Rotating Stars, (Springer)CrossRefGoogle Scholar
Mourard, D., Clausse, J. M., Marcotto, A., Perraut, K. et al. 2009, A&A, 508, 1073Google Scholar