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Chapitre D'ouvrage Année : 2023

Rayleigh Scattering

Emmanuel Marcq

Résumé

Rayleigh scattering is an exact, analytical solution to the problem of radiation scattering in the limit of a vanishingly small scattering particle compared to the radiation wavelength. As such, it is valid for gaseous molecules at wavelengths used in planetary atmospheric studies, resulting in a polarized, conservative scattering increasing toward shorter wavelengths. It gives a characteristic bluish hue to the upper layers of clear atmospheres, has a major influence on planetary albedos (and thus radiative balance), and provides a lower bound on the probed altitude for transit spectroscopy.
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Dates et versions

insu-04371597 , version 1 (03-01-2024)

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Emmanuel Marcq. Rayleigh Scattering. Muriel Gargaud, William M. Irvine, Ricardo Amils, Philippe Claeys, Henderson James Cleaves, Maryvonne Gerin, Daniel Rouan, Tilman Spohn, Stéphane Tirard, Michel Viso (eds). Encyclopedia of Astrobiology, Springer Berlin Heidelberg, pp.2629-2631, 2023, Print ISBN: 978-3-662-65092-9 / Online ISBN: 978-3-662-65093-6. ⟨10.1007/978-3-662-65093-6_5493⟩. ⟨insu-04371597⟩
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