Recent progress in astrophysical plasma turbulence from solar wind observations
By C. Chen. Journal of Plasma Physics, 2016
175 citations recorded by the source corpus.
This paper summarises some of the recent progress that has been made in understanding astrophysical plasma turbulence in the solar wind, from in situ spacecraft observations. At large scales, where the turbulence is predominantly Alfvénic, measurements of critical balance, residual energy and three-dimensional structure are discussed, along with comparison to recent models of strong Alfvénic turbulence. At these scales, a few per cent of the energy is also in compressive fluctuations, and their nature, anisotropy and relation to the Alfvénic component is described. In the small-scale kinetic range, below the ion gyroscale, the turbulence becomes predominantly kinetic Alfvén in nature, and measurements of the spectra, anisotropy and intermittency of this turbulence are discussed with respect to recent cascade models. One of the major remaining questions is how the turbulent energy is dissipated, and some recent work on this question, in addition to future space missions which will help to answer it, are briefly discussed.
Subfields: Astronomy and Astrophysics
View Paper: https://www.semanticscholar.org/paper/0b3ac316e9f07716037b25bc13d225f7484171d6
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Citations in the corpus
- The Evolution and Role of Solar Wind Turbulence in the Inner Heliosphere (2019, background): “The compressive fluctuations are also highly anisotropic (Chen et al. 2012; Chen 2016) and thought to be passive with respect to the Alfvénic turbulence (Schekochihin et al. 2009).”
- Origins of the Ambient Solar Wind: Implications for Space Weather (2017, background): “Interested readers are urged to fill in the gaps by surveying other reviews, such as those by Dessler (1967), Holzer and Axford (1970), Hundhausen (1972), Leer et al. (1982), Barnes (1992), Parker (1997), Cranmer (2002, 2009), Marsch (2006), Velli (2010), Abbo et al. (2016), and Chen (2016).”
- Nature of Kinetic Scale Turbulence in the Earth's Magnetosheath (2016, background): “The majority of observations of turbulence at kinetic scales are from the solar wind upstream of the Earth’s bow shock (e.g., Bruno & Carbone 2013; Alexandrova et al. 2013; Goldstein et al. 2015; Chen 2016).”