| DOI: | 10.1002/2016GL070000
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| 论文题名: | The detection of benzene in Saturn's upper atmosphere |
| 作者: | Koskinen T.T.; Moses J.I.; West R.A.; Guerlet S.; Jouchoux A.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8832
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| EISSN: | 1944-8563
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| 出版年: | 2016
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| 卷: | 43, 期:15 | | 起始页码: | 7895
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| 结束页码: | 7901
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| 语种: | 英语
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| 英文关键词: | photochemistry
; Saturn
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| Scopus关键词: | Aromatic hydrocarbons
; Benzene
; Hydrocarbons
; Photochemical reactions
; Planets
; Polycyclic aromatic hydrocarbons
; High Latitudes
; Northern Hemispheres
; Photochemical haze
; Saturn
; Southern latitudes
; Stellar occultation
; Ultraviolet imaging spectrographs
; Vertical profile
; Upper atmosphere
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| 英文摘要: | 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. ©2016. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983567606&doi=10.1002%2f2016GL070000&partnerID=40&md5=99e52c336d1ae52f6976c03bbae8b2ae
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/9795
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ, United States
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| Recommended Citation: | |
Koskinen T.T.,Moses J.I.,West R.A.,et al. The detection of benzene in Saturn's upper atmosphere[J]. Geophysical Research Letters,2016-01-01,43(15).
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