METHANE PLANETS AND THEIR MASS–RADIUS RELATION

@article{Helled2015METHANEPA,
  title={METHANE PLANETS AND THEIR MASS–RADIUS RELATION},
  author={Ravit Helled and Morris Podolak and Eran Vos},
  journal={The Astrophysical Journal},
  year={2015},
  volume={805}
}
Knowledge of both the mass and radius of an exoplanet allows us to estimate its mean density, and therefore its composition. Exoplanets seem to fill a very large parameter space in terms of mass and composition, and unlike the solar-system’s planets, exoplanets also have intermediate masses (∼5–50 ) with various densities. In this Letter, we investigate the behavior of the mass–radius relation for methane (CH4) planets and show that when methane planets are massive enough ( 15 M), the methane… Expand

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