1. Главная
  2. Ресурсы
  3. Библиотечный поиск
Phase diagram formagnetic reconnectionin heliophysical,astrophysical, andlaboratory plasmas Hantao JiW. Daughton2011 год

Phase diagram for magnetic reconnection in heliophysical, astrophysical, and laboratory plasmas
статья из журнала

Полный текстСтраница публикацииПубликация в OpenAlex
Аннотация: Recent progress in understanding the physics of magnetic reconnection is conveniently summarized in terms of a phase diagram which organizes the essential dynamics for a wide variety of applications in heliophysics, laboratory, and astrophysics. The two key dimensionless parameters are the Lundquist number and the macrosopic system size in units of the ion sound gyroradius. In addition to the conventional single X-line collisional and collisionless phases, multiple X-line reconnection phases arise due to the presence of the plasmoid instability either in collisional and collisionless current sheets. In particular, there exists a unique phase termed “multiple X-line hybrid phase” where a hierarchy of collisional islands or plasmoids is terminated by a collisionless current sheet, resulting in a rapid coupling between the macroscopic and kinetic scales and a mixture of collisional and collisionless dynamics. The new phases involving multiple X-lines and collisionless physics may be important for the emerging applications of magnetic reconnection to accelerate charged particles beyond their thermal speeds. A large number of heliophysical and astrophysical plasmas are surveyed and grouped in the phase diagram: Earth’s magnetosphere, solar plasmas (chromosphere, corona, wind, and tachocline), galactic plasmas (molecular clouds, interstellar media, accretion disks and their coronae, Crab nebula, Sgr A*, gamma ray bursts, and magnetars), and extragalactic plasmas (active galactic nuclei disks and their coronae, galaxy clusters, radio lobes, and extragalactic jets). Significance of laboratory experiments, including a next generation reconnection experiment, is also discussed.
Год издания: 2011
Авторы: Hantao Ji, W. Daughton
Издательство: American Institute of Physics
Источник: Physics of Plasmas
Ключевые слова: Ionosphere and magnetosphere dynamics, Solar and Space Plasma Dynamics, Magnetic confinement fusion research
Другие ссылки: Physics of Plasmas (HTML)
arXiv (Cornell University) (PDF)
arXiv (Cornell University) (HTML)
arXiv (Cornell University) (PDF)
arXiv (Cornell University) (HTML)
DataCite API (HTML)