New study of the line profiles of sodium perturbed by H2

@article{Allard2019NewSO,
  title={New study of the line profiles of sodium perturbed by H2},
  author={N. Allard and F. Spiegelman and T. Leininger and P. Molli{\`e}re},
  journal={Astronomy and Astrophysics},
  year={2019},
  volume={628}
}
  • N. Allard, F. Spiegelman, +1 author P. Mollière
  • Published 2019
  • Physics
  • Astronomy and Astrophysics
  • The opacity of alkali atoms, most importantly of Na and K, plays a crucial role in the atmospheres of brown dwarfs and exoplanets. We present a comprehensive study of NaH2 collisional profiles at temperatures from 500 to 3000 K, the temperatures prevailing in the atmosphere of brown dwarfs and Jupiter-mass planets.The relevant H2 perturber densities reach several 10^19 cm^-3 in hot Teff > 1500 K Jupiter-mass planets and can exceed 10^20 cm^-3 for more massive or cooler objects. Accurate… CONTINUE READING

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    References

    Publications referenced by this paper.
    SHOWING 1-10 OF 33 REFERENCES
    K–H 2 line shapes for the spectra of cool brown dwarfs
    13
    Theoretical and laboratory spectra of sodium perturbed by molecular hydrogen
    16
    H- Opacity and Water Dissociation in the Dayside Atmosphere of the Very Hot Gas Giant WASP-18 b
    59
    Study of the K-H${_2}$ quasi-molecular line satellite in the potassium resonance line
    22
    The Influence of Host Star Spectral Type on Ultra-hot Jupiter Atmospheres
    7
    Collisional profiles of ionized calcium perturbed by helium
    11
    Detection of an Extrasolar Planet Atmosphere
    878
    An absolute sodium abundance for a cloud-free ‘hot Saturn’ exoplanet
    35