Water vapour absorption in the clear atmosphere of a Neptune-sized exoplanet

@article{Fraine2014WaterVA,
  title={Water vapour absorption in the clear atmosphere of a Neptune-sized exoplanet},
  author={J. Fraine and D. Deming and B. Benneke and H. Knutson and A. Jord{\'a}n and N. Espinoza and N. Madhusudhan and A. Wilkins and K. Todorov},
  journal={Nature},
  year={2014},
  volume={513},
  pages={526-529}
}
Transmission spectroscopy has so far detected atomic and molecular absorption in Jupiter-sized exoplanets, but intense efforts to measure molecular absorption in the atmospheres of smaller (Neptune-sized) planets during transits have revealed only featureless spectra. From this it was concluded that the majority of small, warm planets evolve to sustain atmospheres with high mean molecular weights (little hydrogen), opaque clouds or scattering hazes, reducing our ability to observe the… Expand
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