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Organic hazes will impact JWST observations of water-rich exoplanets

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The optical properties of the organic hazes that form in water-rich exoplanet atmospheres differ from those that form in nitrogen-rich atmospheres. This difference in optical properties can have an observable effect on spectral observations of exoplanets and could impact the interpretation of current and upcoming JWST observations.

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Fig. 1: Measuring and modelling spectra of a water-rich atmosphere around a GJ 1214 b-like planet.

References

  1. Kreidberg, L. et al. Clouds in the atmosphere of the super-Earth exoplanet GJ1214b. Nature 505, 69–72 (2014). This paper reports the presence of clouds and/or hazes in the sub-Neptune exoplanet, GJ1214b.

    Article  ADS  PubMed  Google Scholar 

  2. Gao, P. et al. Aerosol composition of hot giant exoplanets dominated by silicates and hydrocarbon hazes. Nat. Astron. 4, 951–956 (2020). In this paper the authors show that exoplanet atmospheres with planetary equilibrium temperatures below 950 K are dominated by organic hazes.

    Article  ADS  Google Scholar 

  3. Hörst, S. M. et al. Haze production rates in super-Earth and mini-Neptune atmosphere experiments. Nat. Astron. 2, 303–306 (2018). This paper reports great diversity in haze production rates in super-Earth and mini-Neptune atmospheres.

    Article  ADS  Google Scholar 

  4. Khare, B. N. et al. Optical constants of organic tholins produced in a simulated Titanian atmosphere: From soft X-ray to microwave frequencies. Icarus 60, 127–137 (1984). This paper reports the optical constants of Titan haze analogues across a wide wavelength range.

    Article  ADS  CAS  Google Scholar 

  5. He, C. et al. Sulfur-driven haze formation in warm CO2-rich exoplanet atmospheres. Nat. Astron. 4, 986–993 (2020). This paper describes the PHAZER chamber used to simulate complex exoplanet atmospheric conditions.

    Article  ADS  Google Scholar 

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This is a summary of: Chao, H. et al. Optical properties of organic haze analogues in water-rich exoplanet atmospheres observable with JWST. Nat. Astron. https://doi.org/10.1038/s41550-023-02140-4 (2023).

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Organic hazes will impact JWST observations of water-rich exoplanets. Nat Astron 8, 162–163 (2024). https://doi.org/10.1038/s41550-023-02141-3

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