A featureless transmission spectrum for the Neptune-mass exoplanet GJ 436b

  title={A featureless transmission spectrum for the Neptune-mass exoplanet GJ 436b},
  author={H. Knutson and B. Benneke and D. Deming and D. Homeier},
  • H. Knutson, B. Benneke, +1 author D. Homeier
  • Published 2014
  • Physics, Medicine, Chemistry
  • Nature
  • GJ 436b is a warm—approximately 800 kelvin—exoplanet that periodically eclipses its low-mass (half the mass of the Sun) host star, and is one of the few Neptune-mass planets that is amenable to detailed characterization. Previous observations have indicated that its atmosphere has a ratio of methane to carbon monoxide that is 105 times smaller than predicted by models for hydrogen-dominated atmospheres at these temperatures. A recent study proposed that this unusual chemistry could be explained… CONTINUE READING
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