کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8134554 | 1523489 | 2018 | 23 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Photodissociation threshold and emission with 220Â nm of icy ethene
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Photodissociation threshold and emission with 220Â nm of icy ethene Photodissociation threshold and emission with 220Â nm of icy ethene](/preview/png/8134554.png)
چکیده انگلیسی
The depletion of ethene, C2H4, dispersed in solid neon was measured upon irradiation with ultraviolet light from a synchrotron source. The threshold for the dissociation of solid ethene is wavelength 210â¯Â±â¯5â¯nm, corresponding to energy 5.90â¯Â±â¯0.13â¯eV. We recorded emission spectra for the transition Tâ¯ââ¯N of ethene dispersed in solid neon, dinitrogen and water, excited at 220â¯nm; the band origins are 286.5, 289.8 and 290.0â¯nm, respectively. This investigation of the depletion of icy ethene with UV light enhances our understanding of its photochemistry in astronomical environments. This emission feature of solid ethene can provide a new means of identification for its observation in space.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 302, 1 March 2018, Pages 261-265
Journal: Icarus - Volume 302, 1 March 2018, Pages 261-265
نویسندگان
Lo Jen-Iu, Chou Sheng-Lung, Peng Yu-Chain, Lu Hsiao-Chi, Cheng Bing-Ming,