Hazy Blue Worlds: A Holistic Aerosol Model for Uranus and Neptune, Including Dark Spots

  title={Hazy Blue Worlds: A Holistic Aerosol Model for Uranus and Neptune, Including Dark Spots},
  author={Patrick J. G. Irwin and N. A. Teanby and Leigh N. Fletcher and Daniel Toledo and G. S. Orton and M. H. Wong and Michael T. Roman and Santiago P{\'e}rez-Hoyos and Arjuna James and Jack Dobinson},
  journal={Journal of Geophysical Research. Planets},
  • P. IrwinN. Teanby J. Dobinson
  • Published 12 January 2022
  • Physics, Environmental Science, Geology
  • Journal of Geophysical Research. Planets
We present a reanalysis (using the Minnaert limb‐darkening approximation) of visible/near‐infrared (0.3–2.5 μm) observations of Uranus and Neptune made by several instruments. We find a common model of the vertical aerosol distribution i.e., consistent with the observed reflectivity spectra of both planets, consisting of: (a) a deep aerosol layer with a base pressure >5–7 bar, assumed to be composed of a mixture of H2S ice and photochemical haze; (b) a layer of photochemical haze/ice… 

Seeking answers, planetary scientists plot a return to the nearest ice giant

  • K. Croswell
  • Physics, Geology
    Proceedings of the National Academy of Sciences of the United States of America
  • 2022
Distant and obscure, the giant planets Uranus and Neptune lurk in the dark far from the Sun. Four decades ago they received one fleeting visitor from Earth, Voyager 2. No other spacecraft has

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Semi-empirical Model of CollisionInduced Absorption Spectra of H 2-H 2 Complexes in the Second Overtone Band of Hydrogen at Temperatures from 50 to 500

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HST/STIS observations of Neptune from 2003

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