کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1767742 | 1020201 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Energetic particle acceleration during a major magnetic storm
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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
چکیده انگلیسی
We study the global properties of energetic (>30Â keV) particles during the main and early recovery phase of a major magnetic storm of March 31, 2001, using data of the NOAA 15 and 16 and the CLUSTER satellites. During the storm main phase the ring current energetic electron and ion fluxes were increased by nearly two orders of magnitude, and the flux maxima were shifted to below LÂ =Â 3. The maximum ion fluxes were observed at about 07Â UT, coinciding with the minimum Dst. However, the highest fluxes of energetic electrons were observed only at about 16-18Â UT, indicating significant differences in the acceleration of energetic electrons and ions during the storm. We suggest that the ion maximum at about 07Â UT was due to field-aligned acceleration of ions from the ionosphere whereas the electron maximum at 16-18Â UT was due to a large injection from the nightside.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Advances in Space Research - Volume 36, Issue 10, 2005, Pages 1835-1839
Journal: Advances in Space Research - Volume 36, Issue 10, 2005, Pages 1835-1839
نویسندگان
R. Kerttula, K. Mursula, T. Asikainen, R. Friedel, D. Baker, F. Søraas, J.F. Fennell, J.B. Blake, M. Grande,