Stellar and Planetary Characterization of the Ross 128 Exoplanetary System from APOGEE Spectra

@article{Souto2018StellarAP,
  title={Stellar and Planetary Characterization of the Ross 128 Exoplanetary System from APOGEE Spectra},
  author={D. Souto and C. Unterborn and V. Smith and K. Cunha and J. Teske and K. Covey and B. Rojas-Ayala and D. A. Garc{\'i}a-Hern{\'a}ndez and K. Stassun and O. Zamora and T. Masseron and J. Johnson and S. Majewski and H. Jőnsson and Steven Gilhool and C. Blake and F. Santana},
  journal={The Astrophysical Journal},
  year={2018},
  volume={860}
}
The first detailed chemical abundance analysis of the M-dwarf (M4.0) exoplanet-hosting star Ross 128 is presented here, based upon near-infrared (1.5-1.7 μm), high-resolution (R ∼ 22,500) spectra from the SDSS Apache Point Galactic Evolution Experiment survey. We determined precise atmospheric parameters T eff = 3231 ±100 K, log g = 4.96 ±0.11 dex and chemical abundances of eight elements (C, O, Mg, Al, K, Ca, Ti, and Fe), finding Ross 128 to have near solar metallicity ([Fe/H] = +0.03 ± 0.09… Expand
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