Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2

@article{Sozzetti2007ImprovingSA,
  title={Improving Stellar and Planetary Parameters of Transiting Planet Systems: The Case of TrES-2},
  author={Alessandro Sozzetti and Guillermo Torres and David Charbonneau and David W. Latham and Matthew J. Holman and Joshua N. Winn and John B. Laird and Francis T. O'Donovan},
  journal={The Astrophysical Journal},
  year={2007},
  volume={664},
  pages={1190 - 1198}
}
We report on a spectroscopic determination of the atmospheric parameters and chemical abundance of the parent star of the recently discovered transiting planet TrES-2. A detailed LTE analysis of a set of Fe I and Fe II lines from our Keck spectra yields Teff = 5850 ± 50 K, log g = 4.4 ± 0.1, and [Fe/H] = -0.15 ± 0.10. Several independent checks (e.g., additional spectroscopy, line-depth ratios) confirm the reliability of our spectroscopic Teff estimate. The mass and radius of the star, needed… 

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