The Hunt for Planet Nine: Atmosphere, Spectra, Evolution, and Detectability

@article{Fortney2016TheHF,
  title={The Hunt for Planet Nine: Atmosphere, Spectra, Evolution, and Detectability},
  author={J. Fortney and M. Marley and G. Laughlin and N. Nettelmann and C. Morley and R. Lupu and C. Visscher and P. Jeremi{\'c} and Wade G. Khadder and Mason Hargrave},
  journal={arXiv: Earth and Planetary Astrophysics},
  year={2016}
}
  • J. Fortney, M. Marley, +7 authors Mason Hargrave
  • Published 2016
  • Physics
  • arXiv: Earth and Planetary Astrophysics
  • We investigate the physical characteristics of the Solar System's proposed Planet Nine using modeling tools with a heritage in studying Uranus and Neptune. For a range of plausible masses and interior structures, we find upper limits on the intrinsic Teff, from ~35-50 K for masses of 5-20 M_Earth, and we also explore lower Teff values. Possible planetary radii could readily span from 3 to 6 R_Earth depending on the mass fraction of any H/He envelope. Given its cold temperature, the planet… CONTINUE READING
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