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Aerosol growth in Titan's ionosphere
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2013 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 110, no 8, 2729-2734 p.Article in journal (Refereed) Published
Abstract [en]

Photochemically produced aerosols are common among the atmospheres of our solar system and beyond. Observations and models have shown that photochemical aerosols have direct consequences on atmospheric properties as well as important astrobiological ramifications, but the mechanisms involved in their formation remain unclear. Here we show that the formation of aerosols in Titan's upper atmosphere is directly related to ion processes, and we provide a complete interpretation of observed mass spectra by the Cassini instruments from small to large masses. Because all planetary atmospheres possess ionospheres, we anticipate that the mechanisms identified here will be efficient in other environments as well, modulated by the chemical complexity of each atmosphere.

Place, publisher, year, edition, pages
2013. Vol. 110, no 8, 2729-2734 p.
Keyword [en]
planetary sciences, heterogeneous chemistry, particles charging, plasma
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:uu:diva-198412DOI: 10.1073/pnas.1217059110ISI: 000315954400034OAI: oai:DiVA.org:uu-198412DiVA: diva2:616065
Available from: 2013-04-15 Created: 2013-04-15 Last updated: 2017-12-06Bibliographically approved

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Wahlund, Jan-Erik

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Swedish Institute of Space Physics, Uppsala Division
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