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Do phase portraits resist current sheet bifurcation?статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Delcourt D.C., Ovodkov D.A., Popov V.Yu, Malova H.V., Zelenyi L.M.
- Журнал: Advances in Space Research
- Том: 37
- Номер: 3
- Год издания: 2006
- Издательство: Pergamon Press Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 547
- Последняя страница: 551
- DOI: 10.1016/j.asr.2005.02.071
- Аннотация: We investigate the non-linear dynamics of charged particles in the double-humped current sheets that develop in the Earth’s magnetotail. Using Poincaré surfaces of section, we examine the various dynamical regimes that occur in a sharp field reversal and compare them to those obtained in single-humped current sheets. We demonstrate that bifurcation of the magnetotail current sheet does not alter the overall phase portrait structure which is characterized by three distinct regimes, viz., trapped, quasi-trapped, and transient. The phase portraits in single- and double-humped current sheets are not strictly identical though. A greater abundance of trapped particles and a distortion of the transient orbit domain are obtained in the latter case. In contrast, numerical simulations performed with an asymmetrical double-humped current distribution reveal considerable modification of the phase portrait with an expansion of the stochastic regime and a drastic reduction of the transient one. The degree of asymmetry in double-humped current sheets accordingly appears as a primary parameter to characterize the nonadiabatic behavior of charged particles.
- Добавил в систему: Малова Хельми Витальевна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | ASR_2006.pdf | ASR_2006.pdf | 214,5 КБ | 28 января 2013 [hmalova] |