Smoking Gun of the Dynamical Processing of the Solar-type Field Binary Stars

@article{Liu2019SmokingGO,
  title={Smoking Gun of the Dynamical Processing of the Solar-type Field Binary Stars},
  author={C. Liu},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2019},
  volume={490},
  pages={550-565}
}
  • C. Liu
  • Published 2019
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We investigate the binarity properties in field stars using more than 50\,000 main-sequence stars with stellar mass from 0.4 to 0.85\,$M_\odot$ observed by LAMOST and {\emph Gaia} in the solar neighborhood. By adopting a power-law shape of the mass-ratio distribution with power index of $\gamma$, we conduct a hierarchical Bayesian model to derive the binary fraction ($f_{b}$) and $\gamma$ for stellar populations with different metallicities and primary masses ($m_1$). We find that $f_b$ is… CONTINUE READING

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    Publications referenced by this paper.
    SHOWING 1-4 OF 4 REFERENCES
    2017) applied this approach and well determined the reddening of the LAMOST data. We follow the same method and adopt that the 5% percentiles
    • 2017
    2018) and the formula of extinction coefficients can be written as kX =c1
    • 2018
    The uncertainties of Teff , log g, and [Fe/H] are σT = 110 K, σG = 0.2 dex, and σZ = 0.15 dex
    • 2015
    respectively, provided in Table 1 of Gaia Collaboration et al. (2018)
    • 2018