Properties and selected implications of magnetic turbulence for interstellar medium, Local Bubble and solar wind

Details Properties and selected implications of magnetic turbulence for interstellar medium, Local Bubble and solar wind Properties and selected implications of magnetic turbulence for interstellar medium, Local Bubble and solar wind

2008-11-05

arxiv.org/abs/0811.0826v3

Astronomy and Astrophysics

Astrophysics

17 pages, 11 figures, Accepted to Space Science Reviews, mistake in the author's list is corrected

Scientific paper

10.1007/s11214-008-9452-y

Astrophysical fluids, including interstellar and interplanetary medium, are magnetized and turbulent. Their appearance, evolution, and overall properties are determined by the magnetic turbulence that stirs it. We argue that examining magnetic turbulence at a fundamental level is vital to understanding many processes. A point that frequently escapes the attention of researchers is that magnetic turbulence cannot be confidently understood only using "brute force" numerical approaches. In this review we illustrate this point on a number of examples, including intermittent heating of plasma by turbulence, interactions of turbulence with cosmic rays and effects of turbulence on the rate of magnetic reconnection. We show that the properties of magnetic turbulence may vary considerably in various environments, e.g. imbalanced turbulence in solar wind differs from balanced turbulence and both of these differ from turbulence in partially ionized gas. Appealing for the necessity of more observational data on magnetic fields, we discuss a possibility of studying interplanetary turbulence using alignment of Sodium atoms in the tail of comets.

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