کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5486219 1399453 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stability of the magnetosonic wave in a cometary multi-ion plasma
ترجمه فارسی عنوان
پایداری موج مغناطیسی در پلاسمای چند وجهی کمیته
کلمات کلیدی
موج مغناطیسی، نرخ رشد، ثبات، پلاسمای چند یون
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم فضا و نجوم
چکیده انگلیسی
A generalized dispersion relation of the magnetosonic wave in a four component plasma consisting of electrons and hydrogen ions of solar origin and positively and negatively charged oxygen ions of cometary origin has been derived by using the Vlasov-Maxwell kinetic model. Parallel to the magnetic field, the hydrogen and electron components are modeled by a drifting Maxwellian distribution; perpendicular to the magnetic field, we use a loss cone type distribution obtained by the subtraction of two Maxwellian distributions having different temperatures. The effect of change in the drift velocity of streaming components and number densities and temperatures of each species in driving the instability has been analyzed both analytically and numerically. For typical parameters at comet Halley, we find that both positively and negatively charged oxygen ions can drive the wave unstable.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 59, Issue 10, 15 May 2017, Pages 2679-2688
نویسندگان
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