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2016•Proceedings of the International Astronomical UnionOpen access

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

E. Gosset, L. Mahy, Y. Damerdji, Christian Nıtschelm, Hugues Sana, Philippe R. J. Eenens, Yaël Nazé

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Abstract

Abstract 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.

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Abstract 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.

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Available abstract

Abstract 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.

Key concepts: Supergiant, Light curve, Physics, Astrophysics, Binary number, Radial velocity, Binary system, Binary star

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