کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1782039 | 1022316 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comparison of parallel group velocity of ECH waves with electron resonant velocity: Implication for electron diffusion by ECH waves
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فیزیک زمین (ژئو فیزیک)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Comparison of parallel group velocity of ECH waves with electron resonant velocity: Implication for electron diffusion by ECH waves Comparison of parallel group velocity of ECH waves with electron resonant velocity: Implication for electron diffusion by ECH waves](/preview/png/1782039.png)
چکیده انگلیسی
We have investigated the role of group velocity in the calculation of pitch-angle diffusion coefficients by electron cyclotron harmonic (ECH) waves in planetary magnetospheres. The assumption which is generally made that the parallel group velocity can be neglected in comparison with particle parallel velocity is examined in detail. It is found that for lowest harmonic band this assumption is quite good. It is found that in general it is not possible to ignore the parallel group velocity. However, for lowest harmonic band this assumption is quite good at low electron temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Planetary and Space Science - Volume 57, Issue 12, October 2009, Pages 1334-1337
Journal: Planetary and Space Science - Volume 57, Issue 12, October 2009, Pages 1334-1337
نویسندگان
A.K. Tripathi, R.P. Singhal,