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The 2008+ outburst of the Be star 28 CMa - a multi-instrument study†

Published online by Cambridge University Press:  12 July 2011

Stan Štefl ,
Alex C. Carciofi ,
Dietrich Baade ,
Thomas Rivinius ,
Sebastian Otero ,
Jean-Baptiste Le Bouquin ,
Juan Fabregat ,
Atsuo T. Okazaki  and
Fredrik Rantakyrö
Stan Štefl
Affiliation:
ESO, Chile
Alex C. Carciofi
Affiliation:
São Paulo, Brazil
Dietrich Baade
Affiliation:
ESO, Germany
Thomas Rivinius
Affiliation:
ESO, Chile
Sebastian Otero
Affiliation:
Buenos Aires, Argentina
Jean-Baptiste Le Bouquin
Affiliation:
Grenoble, France
Juan Fabregat
Affiliation:
Valencia, Spain
Atsuo T. Okazaki
Affiliation:
Sapporo, Japan
Fredrik Rantakyrö
Affiliation:
Gemini, Chile
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Abstract

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Optical and IR spectra, optical to sub-mm photometry, visual imaging polarimetry, and IR high-resolution spectro-interferometry are being used to monitor the new outburst of 28 CMa, which started in 2008 and so far closely resembles previous ones. First modeling based on viscous decretion and focused on constraining the disk viscosity parameter, α, is presented.

Keywords

stars: circumstellar matterstars: emission-lineBestars: mass loss
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. 430 - 432
Copyright
Copyright © International Astronomical Union 2011

References

Carciofi, A. C., Okazaki, A. T., Le Bouquin, J.-B., & Štefl, S. et al. 2009, A&A, 504, 915Google Scholar
Maintz, M., Rivinius, T., Štefl, S., & Baade, D. et al. 2003, A&A, 411, 181Google Scholar
Štefl, S., Baade, D., Rivinius, T., & Stahl, O. et al. 2003, A&A, 411, 167Google Scholar