期刊
出版社
ROYAL SOC
DOI: 10.1098/rsta.2014.0155
关键词
solar wind; turbulence; magnetohydrodynamics; collisionless plasmas
资金
- Engineering and Physical Sciences Research Council [EP/H02395X/1, EP/D062837/1] Funding Source: researchfish
- Science and Technology Facilities Council [1224636, ST/F00205X/1, ST/I000720/1] Funding Source: researchfish
- EPSRC [EP/D062837/1, EP/H02395X/1] Funding Source: UKRI
- STFC [ST/I000720/1, ST/F00205X/1] Funding Source: UKRI
The past decade has seen a flurry of research activity focused on discerning the physics of kinetic scale turbulence in high-speed astrophysical plasma flows. By 'kinetic' we mean spatial scales on the order of or, in particular, smaller than the ion inertial length or the ion gyro-radius-the spatial scales at which the ion and electron bulk velocities decouple and considerable change can be seen in the ion distribution functions. The motivation behind most of these studies is to find the ultimate fate of the energy cascade of plasma turbulence, and thereby the channels by which the energy in the system is dissipated. This brief Introduction motivates the case for a themed issue on this topic and introduces the topic of turbulent dissipation and heating in the solar wind. The theme issue covers the full breadth of studies: from theory and models, massive simulations of these models and observational studies from the highly rich and vast amount of data collected from scores of heliospheric space missions since the dawn of the space age. A synopsis of the theme issue is provided, where a brief description of all the contributions is discussed and how they fit together to provide an over-arching picture on the highly topical subject of dissipation and heating in turbulent collisionless plasmas in general and in the solar wind in particular.
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