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Inflation of a dipole field in laboratory experiments: Towards understanding of magnetodisk formation in magnetosphere of a Hot Jupiter,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: 29 ноября 2013 г.
- Авторы: Antonov V.M., Boyarinsev E.L., Boyko A.A., Zakharov Yu P., Melekhov A.V., Ponomarenko A.G., Posukh V.G., Shaikhislamov I.F., Khodachenko M.L., Lammer H.
- Журнал: Astrophysical Journal
- Том: 769
- Год издания: 2013
- Издательство: University of Chicago Press
- Местоположение издательства: United States
- Первая страница: 28
- DOI: 10.1088/0004-637X/769/1/28
- Аннотация: Giant exoplanets at close orbits, or so-called hot Jupiters, are supposed to have an intensive escape of upper atmospheric material heated and ionized by the radiation of a host star. An interaction between outflowing atmospheric plasma and the intrinsic planetary magnetic dipole field leads to the formation of a crucial feature of a hot Jupiter’s magnetosphere—an equatorial current-carrying magnetodisk. The presence of a magnetodisk has been shown to influence the topology of a hot Jupiter’s magnetosphere and to change a standoff distance of the magnetopause. In this paper, the basic features of the formation of a hot Jupiter’s magnetodisk are studied by means of a laboratory experiment. A localized central source produces plasma that expands outward from the surface of the dipole and inflates the magnetic field. The observed structure of magnetic fields, electric currents, and plasma density indicates the formation of a relatively thin current disk extending beyond the Alfv´enic point. At the edge of the current disk, an induced magnetic field was found to be several times larger than the field of the initial dipole.
- Добавил в систему: Ходаченко Максим Леонидович