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The supergiant O + O binary system HD 166734: a new study

Published online by Cambridge University Press:  28 July 2017

E. Gosset ,
L. Mahy ,
Y. Damerdji ,
C. Nitschelm ,
H. Sana ,
P. Eenens  and
Y. Nazé Open the ORCID record for Y. Nazé [Opens in a new window]
E. Gosset
Affiliation:
STAR Institute, Liège University, Allée du 6 août, 19c, B4000 Liège, Belgium
L. Mahy
Affiliation:
STAR Institute, Liège University, Allée du 6 août, 19c, B4000 Liège, Belgium
Y. Damerdji
Affiliation:
STAR Institute, Liège University, Allée du 6 août, 19c, B4000 Liège, Belgium CRAAG, route de l’Observatoire, BP63, Bouzareah, 16340 Algiers, Algeria
C. Nitschelm
Affiliation:
Unidad de Astronomía, Univ. de Antofagasta, Avenida Angamos 601, Antofagasta, Chile
H. Sana
Affiliation:
Inst. voor Sterrenkunde, KU Leuven, Celestijnenlaan 200D, Bus 2401, B3001 Leuven, Belgium
P. Eenens
Affiliation:
Dept. de Astronomía, Univ. de Guanajuato, Apartado 144, 36000 Guanajuato, GTO, Mexico
Y. Nazé
Affiliation:
STAR Institute, Liège University, Allée du 6 août, 19c, B4000 Liège, Belgium
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Abstract

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We present here a modern study of the radial velocity curve and of the photometric light curve of the very interesting supergiant O7.5If + O9I(f) binary system HD 166734. The physical parameters of the stars and the orbital parameters are carefully determined. We also perform the analysis of the observed X-ray light curve of this colliding-wind binary.

Keywords

stars: individual (HD 166734)binaries: spectroscopicbinaries: eclipsingstars: supergiantsX-ray: binaries
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 12 , Symposium S329: The Lives and Death-Throes of Massive Stars , November 2016 , pp. 402
Copyright
Copyright © International Astronomical Union 2017 

References

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Otero, S. A. & Wils, P., 2005, Inf. Bull. Var. Stars, 5644, 1 Google Scholar