期刊
FRONTIERS IN ASTRONOMY AND SPACE SCIENCES
卷 8, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fspas.2021.621040
关键词
collisionless plasma; magnetic fields; heliosphere; solar wind; solar corona; earth magnetosheath; earth magnetosphere; plasma turbulence
资金
- NSF [NSF PHY-1707272, NSF PHY-2010098]
- NASA [NASA 80NSSC18K0646]
- DOE [DE-SC0018266, DE-SC0019315]
- NSF CAREER Award [1654168]
- NSF-DOE Partnership in Basic Plasma Science and Engineering [PHY-2010136]
- U.S. Department of Energy (DOE) [DE-SC0019315, DE-SC0018266] Funding Source: U.S. Department of Energy (DOE)
This review examines simple physical models describing plasma dynamics in regions where the electron thermal energy is smaller than the magnetic one, discussing their conservation laws and the limits of their applicability.
Recent in situ measurements by the MMS and Parker Solar Probe missions bring interest to small-scale plasma dynamics (waves, turbulence, magnetic reconnection) in regions where the electron thermal energy is smaller than the magnetic one. Examples of such regions are the Earth's magnetosheath and the vicinity of the solar corona, and they are also encountered in other astrophysical systems. In this brief review, we consider simple physical models describing plasma dynamics in such low-electron-beta regimes, discuss their conservation laws and their limits of applicability.
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