Temperature-dependent photoabsorption cross section of cyanodiacetylene in the vacuum UV

被引：6

作者：

Fray, N. ^{[1
,2
]}

Benilan, Y. ^{[1
,2
]}

Gazeau, M. -C. ^{[1
,2
]}

Jolly, A. ^{[1
,2
]}

Schwell, M. ^{[1
,2
]}

Arzoumanian, E. ^{[1
,2
]}

Ferradaz, T. ^{[1
,2
]}

Es-Sebbar, Et ^{[1
,2
]}

Guillemin, J. -C. ^{[3
,4
]}

机构：

[1] Univ Paris 07, CNRS, UMR 7583, Lab Interuniv Syst Atmospher, F-94010 Creteil, France

[2] Univ Paris 12, CNRS, UMR 7583, Lab Interuniv Syst Atmospher, F-94010 Creteil, France

[3] Ecole Natl Super Chim Rennes, CNRS, UMR 6226, F-35708 Rennes 7, France

[4] Univ Europeenne Bretagne, Rennes, France

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS | 2010年 / 115卷

关键词：

ORGANIC-CHEMISTRY; HC5N; HC3N; ATMOSPHERE; SPECTRA; TITAN; HCN;

D O I：

10.1029/2009JE003518

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Using synchrotron radiation as a tunable VUV light source, we have measured, for the first time, the absolute photoabsorption cross sections of HC5N with a spectral resolution of 0.05 nm in the region between 80 and 205 nm from 233 to 298 K. The measured cross sections are used to predict the HC5N photodestruction rate in the solar system and to model a transmission spectrum in Titan's atmosphere. Comparing the latter with that acquired by the Ultraviolet Imaging Spectrograph on board the Cassini spacecraft, we have determined an upper limit of 2.7 x 10(-5) on the HC5N abundance at 1100 km.

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页数：6

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