Atmospheric electrification in dusty, reactive gases in the solar system and beyond

Helling, Christiane and Harrison, R. Giles and Honary, Farideh and Diver, Declan and K, Aplin and Dobbs-Dixon, Ian and Ebert, Ute and Inutsuka, Shu-ichiro and Gordillo-Vazquez, Francisco and Littlefair, Stuart (2016) Atmospheric electrification in dusty, reactive gases in the solar system and beyond. Surveys in Geophysics, 37 (4). pp. 705-756. ISSN 0169-3298

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Detailed observations of the solar system planets reveal a wide variety of local atmospheric conditions. Astronomical observations have revealed a variety of extrasolar planets none of which resembles any of the solar system planets in full. Instead, the most massive amongst the extrasolar planets, the gas giants, appear very similar to the class of (young) Brown Dwarfs which are amongst the oldest objects in the universe. Despite of this diversity, solar system planets, extrasolar planets and Brown Dwarfs have broadly similar global temperatures between 300K and 2500K. In consequence, clouds of different chemical species form in their atmospheres. While the details of these clouds differ, the fundamental physical processes are the same. Further to this, all these objects were observed to produce radio and X-ray emission. While both kinds of radiation are well studied on Earth and to a lesser extent on the solar system planets, the occurrence of emission that potentially originate from accelerated electrons on Brown Dwarfs, extrasolar planets and protoplanetary disks is not well understood yet. This paper offers an interdisciplinary view on electrification processes and their feedback on their hosting environment in meteorology, volcanology, planetology and research on extrasolar planets and planet formation.

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Journal Article
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Surveys in Geophysics
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25 May 2016 13:00
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15 Sep 2023 04:15