Orbital and atmospheric parameters of two wide O-type subdwarf binaries: BD-11°162 and Feige 80

@article{Molina2021OrbitalAA,
  title={Orbital and atmospheric parameters of two wide O-type subdwarf binaries: BD-11°162 and Feige 80},
  author={Francisco Molina and Joris Vos and P'eter N'emeth and Roy H. Ostensen and Maja Vuvckovi'c and Andrew Tkachenko and Hans Van Winckel},
  journal={Astronomy \& Astrophysics},
  year={2021}
}
Context. There are 23 long-period binary systems discovered to date that contain a B-type hot subdwarf (sdB) whose orbital parameters have been fully solved. They evolve into O-type subdwarfs (sdO) once the helium burning transitions from the core to the He shell. Their study will help constraint parameters on the formation and evolution of these binaries and explain some of their puzzling features. Aims. In this study, we aim to solve orbital and atmospheric parameters of two long-period sdO… 

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