کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1782487 | 1022340 | 2009 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Temperature-dependent photoabsorption cross-sections of cyanoacetylene and diacetylene in the mid- and vacuum-UV: Application to Titan's atmosphere
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
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چکیده انگلیسی
Cyanoacetylene (HC3N) and diacetylene (C4H2) play an important role in the photochemistry of Titan's atmosphere, in part because of their strong absorption between 110 and 180Â nm. Accurate photoabsorption cross-sections at temperatures representative of Titan's atmosphere are required to interprete Cassini observations and to calculate photolysis rates used in photochemical models. Using synchrotron radiation as a tunable vacuum ultraviolet (VUV) light source, we have measured absolute photoabsorption cross-sections of C4H2 and HC3N with a spectral resolution of 0.05Â nm in the region between 80 and 225Â nm and at different temperatures between 173 and 295Â K. The measured cross-sections are used to model transmission spectra of Titan atmosphere in the VUV.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 57, Issue 1, January 2009, Pages 10-22
Journal: Planetary and Space Science - Volume 57, Issue 1, January 2009, Pages 10-22
نویسندگان
T. Ferradaz, Y. Bénilan, N. Fray, A. Jolly, M. Schwell, M.C. Gazeau, H.-W. Jochims,