کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1768667 | 1020234 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solar wind dependence of the Pc1 wave activity
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
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: Solar wind dependence of the Pc1 wave activity Solar wind dependence of the Pc1 wave activity](/preview/png/1768667.png)
چکیده انگلیسی
There are a host of factors influencing the excitation of Pc1 geomagnetic pulsations, which are ULF waves in the frequency range between 0.2 and 5Â Hz. We have studied carefully the dependence of the pearl-type Pc1 activity at Sodankylä, Finland (LÂ =Â 5.1) on the plasma density N in front of the magnetosphere, the bulk velocity V of the solar wind, and the intensity B of the IMF. The result is as follows: high values of N and reduced values of V are favorable to appearance of Pc1, whereas the dependence of Pc1 activity on B is practically absent. We also show that the probability of Pc1 occurrence decreases with the interplanetary electric field, and increases with solar wind impact pressure and with the plasma to magnetic pressure ratio “beta”.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 36, Issue 12, 2005, Pages 2413-2416
Journal: Advances in Space Research - Volume 36, Issue 12, 2005, Pages 2413-2416
نویسندگان
A. Guglielmi, J. Kangas, J. Kultima, A. Potapov,