The detection of benzene in Saturn's upper atmosphere
The stratosphere of Saturn contains a photochemical haze that appears thicker at the poles and may originate from chemistry driven by the aurora. Models suggest that the formation of hydrocarbon haze is initiated at high altitudes by the production of benzene, which is followed by the formation of h...
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ftunivarizona:oai:repository.arizona.edu:10150/621596 2023-05-15T18:02:16+02:00 The detection of benzene in Saturn's upper atmosphere Koskinen, T. T. Moses, J. I. West, R. A. Guerlet, S. Jouchoux, A. Univ Arizona, Lunar & Planetary Lab 2016-08-16 http://hdl.handle.net/10150/621596 https://doi.org/10.1002/2016GL070000 en eng AMER GEOPHYSICAL UNION http://onlinelibrary.wiley.com/doi/10.1002/2016GL070000/abstract Koskinen, T. T., J. I. Moses, R. A. West, S. Guerlet, and A. Jouchoux (2016), The detection of benzene in Saturn's upper atmosphere, Geophys. Res. Lett., 43, 7895–7901, doi:10.1002/2016GL070000. 0094-8276 doi:10.1002/2016GL070000 http://hdl.handle.net/10150/621596 GEOPHYSICAL RESEARCH LETTERS ©2016. American Geophysical Union. All Rights Reserved. Saturn photochemistry Article 2016 ftunivarizona https://doi.org/10.1002/2016GL070000 2020-06-14T08:14:58Z The stratosphere of Saturn contains a photochemical haze that appears thicker at the poles and may originate from chemistry driven by the aurora. Models suggest that the formation of hydrocarbon haze is initiated at high altitudes by the production of benzene, which is followed by the formation of heavier ring polycyclic aromatic hydrocarbons. Until now there have been no observations of hydrocarbons or photochemical haze in the production region to constrain these models. We report the first vertical profiles of benzene and constraints on haze opacity in the upper atmosphere of Saturn retrieved from Cassini Ultraviolet Imaging Spectrograph stellar occultations. We detect benzene at several different latitudes and find that the observed abundances of benzene can be produced by solar-driven ion chemistry that is enhanced at high latitudes in the northern hemisphere during spring. We also detect evidence for condensation and haze at high southern latitudes in the polar night. NASA Cassini Data Analysis and Participating Scientist grant [NNX14AD51G]; NASA Solar System Workings grant [NNX16AG10G]; Cassini Project; CNES Published online 15 Aug 2016. 6 Month Embargo. This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu. Article in Journal/Newspaper polar night The University of Arizona: UA Campus Repository Geophysical Research Letters 43 15 7895 7901 |
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Open Polar |
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The University of Arizona: UA Campus Repository |
op_collection_id |
ftunivarizona |
language |
English |
topic |
Saturn photochemistry |
spellingShingle |
Saturn photochemistry Koskinen, T. T. Moses, J. I. West, R. A. Guerlet, S. Jouchoux, A. The detection of benzene in Saturn's upper atmosphere |
topic_facet |
Saturn photochemistry |
description |
The stratosphere of Saturn contains a photochemical haze that appears thicker at the poles and may originate from chemistry driven by the aurora. Models suggest that the formation of hydrocarbon haze is initiated at high altitudes by the production of benzene, which is followed by the formation of heavier ring polycyclic aromatic hydrocarbons. Until now there have been no observations of hydrocarbons or photochemical haze in the production region to constrain these models. We report the first vertical profiles of benzene and constraints on haze opacity in the upper atmosphere of Saturn retrieved from Cassini Ultraviolet Imaging Spectrograph stellar occultations. We detect benzene at several different latitudes and find that the observed abundances of benzene can be produced by solar-driven ion chemistry that is enhanced at high latitudes in the northern hemisphere during spring. We also detect evidence for condensation and haze at high southern latitudes in the polar night. NASA Cassini Data Analysis and Participating Scientist grant [NNX14AD51G]; NASA Solar System Workings grant [NNX16AG10G]; Cassini Project; CNES Published online 15 Aug 2016. 6 Month Embargo. This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu. |
author2 |
Univ Arizona, Lunar & Planetary Lab |
format |
Article in Journal/Newspaper |
author |
Koskinen, T. T. Moses, J. I. West, R. A. Guerlet, S. Jouchoux, A. |
author_facet |
Koskinen, T. T. Moses, J. I. West, R. A. Guerlet, S. Jouchoux, A. |
author_sort |
Koskinen, T. T. |
title |
The detection of benzene in Saturn's upper atmosphere |
title_short |
The detection of benzene in Saturn's upper atmosphere |
title_full |
The detection of benzene in Saturn's upper atmosphere |
title_fullStr |
The detection of benzene in Saturn's upper atmosphere |
title_full_unstemmed |
The detection of benzene in Saturn's upper atmosphere |
title_sort |
detection of benzene in saturn's upper atmosphere |
publisher |
AMER GEOPHYSICAL UNION |
publishDate |
2016 |
url |
http://hdl.handle.net/10150/621596 https://doi.org/10.1002/2016GL070000 |
genre |
polar night |
genre_facet |
polar night |
op_relation |
http://onlinelibrary.wiley.com/doi/10.1002/2016GL070000/abstract Koskinen, T. T., J. I. Moses, R. A. West, S. Guerlet, and A. Jouchoux (2016), The detection of benzene in Saturn's upper atmosphere, Geophys. Res. Lett., 43, 7895–7901, doi:10.1002/2016GL070000. 0094-8276 doi:10.1002/2016GL070000 http://hdl.handle.net/10150/621596 GEOPHYSICAL RESEARCH LETTERS |
op_rights |
©2016. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.1002/2016GL070000 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
15 |
container_start_page |
7895 |
op_container_end_page |
7901 |
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1766172060819652608 |