Detailed chemical compositions of planet-hosting stars – I. Exploration of possible planet signatures

@article{Liu2020DetailedCC,
  title={Detailed chemical compositions of planet-hosting stars – I. Exploration of possible planet signatures},
  author={F. Liu and D. Yong and Martin Asplund and Hye Suk Wang and Lorenzo Spina and L. Acu{\~n}a and Josu{\'e} Mel{\'e}ndez and I. Ramirez},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2020},
  volume={495},
  pages={3961-3973}
}
  • F. Liu, D. Yong, +5 authors I. Ramirez
  • Published 2020
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • We present a line-by-line differential analysis of a sample of 16 planet hosting stars and 68 comparison stars using high resolution, high signal-to-noise ratio spectra gathered using Keck. We obtained accurate stellar parameters and high-precision relative chemical abundances with average uncertainties in \teff, \logg, [Fe/H] and [X/H] of 15 K, 0.034 [cgs], 0.012 dex and 0.025 dex, respectively. For each planet host, we identify a set of comparison stars and examine the abundance differences… CONTINUE READING

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