کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8137385 | 1523545 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ionization of the venusian atmosphere from solar and galactic cosmic rays
ترجمه فارسی عنوان
یونیزاسیون جو اتمسفر از اشعه های کیهانی خورشیدی و کهکشانی
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
علوم فضا و نجوم
چکیده انگلیسی
The atmospheres of the terrestrial planets are exposed to solar and galactic cosmic rays, the most energetic of which are capable of affecting deep atmospheric layers through extensive nuclear and electromagnetic particle cascades. In the venusian atmosphere, cosmic rays are expected to be the dominant ionization source below â¼100Â km altitude. While previous studies have considered the effect of cosmic ray ionization using approximate transport methods, we have for the first time performed full 3D Monte Carlo modeling of cosmic ray interaction with the venusian atmosphere, including the contribution of high-Z cosmic ray ions (ZÂ =Â 1-28). Our predictions are similar to those of previous studies at the ionization peak near 63Â km altitude, but are significantly different to these both above and below this altitude. The rate of atmospheric ionization is a fundamental atmospheric property and the results of this study have wide-reaching applications in topics including atmospheric electrical processes, cloud microphysics and atmospheric chemistry.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Icarus - Volume 245, 1 January 2015, Pages 80-86
Journal: Icarus - Volume 245, 1 January 2015, Pages 80-86
نویسندگان
T.A. Nordheim, L.R. Dartnell, L. Desorgher, A.J. Coates, G.H. Jones,