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Exoplanet Clouds

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arxiv 1812.03793 v1 pith:UJV4IB4W submitted 2018-12-10 astro-ph.EP astro-ph.SR

classification astro-ph.EPastro-ph.SR
keywords cloudsatmospheresexoplanetatmosphereextrasolarobservationsplanetsthey
verification ladder T0 review T1 audit T2 compute T3 formal
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Clouds also form in atmospheres of planets that orbit other stars than our Sun, in so-called extrasolar planets or exoplanets. Exoplanet atmospheres can be chemically extremely rich. Exoplanet clouds are therefor made of a mix of materials that changes throughout the atmosphere. They affect the atmospheres through element depletion and through absorption and scattering, hence, they have a profound impact on the atmosphere's energy budget. While astronomical observations point us to the presence of extrasolar clouds and make first suggestions on particle sizes and material compositions, we require fundamental and complex modelling work to merge the individual observations into a coherent picture. Part of this is to develop an understanding for cloud formation in non-terrestrial environments.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Unraveling the Mystery of the Peculiar and Young Hot Jupiter CoRoT-2b II: Phase Resolved Emission Spectroscopy with VLT/CRIRES+ and Gemini-S/IGRINS

    astro-ph.EP 2026-06 unverdicted novelty 7.0 of 10

    Phase-resolved high-resolution spectroscopy of CoRoT-2b measures sub-synchronous rotation at 2.6-sigma significance, consistent with its western hotspot offset.

  2. Circular polarization as a probe of cloud properties and asymmetries in giant exoplanet atmospheres

    astro-ph.EP 2026-08 conditional novelty 6.0 of 10

    Circular polarization of starlight reflected by giant exoplanets is sensitive to cloud particle composition and atmospheric asymmetries, but the predicted signal is at most a few times 1e-4 of the planetary flux and b...

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