New benzene absorption cross sections in the VUV, relevance for Titan’s upper atmosphere
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- 作者：Fernando J. Capalboa ; fernando.capalbo@lisa.u-pec.fr" class="auth_mail" title="E-mail the corresponding author ; Yves Bé ; nilana ; Nicolas Fraya ; Martin Schwella ; Norbert Championb ; c ; Et-touhami Es-sebbara ; Tommi T. Koskinend ; Ivan Lehockia ; Roger V. Yelled
- 关键词：Spectroscopy ; Ultraviolet observations ; Titan ; atmosphere ; Occultations ; Atmospheres ; composition
- 刊名：Icarus
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：265
- 期：Complete
- 页码：95-109
- 全文大小：1007 K
文摘
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We measured benzene absorption cross sections in the temperature range 215–298 K.
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We presented the first analysis of temperature dependency, which is small.
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The cross sections were used to analyze 4 stellar occultations measured by UVIS.
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We retrieved 4 density profiles of benzene in the upper atmosphere of Titan.
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Our results indicate that photochemical models do not produce enough benzene.