A new-age determination for γ2 Velorum from binary stellar evolution models

@article{Eldridge2009AND,
  title={A new-age determination for $\gamma$2 Velorum from binary stellar evolution models},
  author={J. J. Eldridge},
  journal={Monthly Notices of the Royal Astronomical Society: Letters},
  year={2009},
  volume={400}
}
  • J. Eldridge
  • Published 2 September 2009
  • Physics
  • Monthly Notices of the Royal Astronomical Society: Letters
We derive a new age for the γ 2 Velorum binary by comparing recent observations to our set of binary models. We find that it is very unlikely that the stars have not interacted, which implies that previous estimates of the age from single-star models of 3.5 ± 0.4 Myr are incorrect. We prefer an older age of 5.5 ± 1 Myr that agrees with the age of other lower mass stars in the Vela OB association. We also find that our favoured binary model shows the components of the binary have interacted in a… 

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