Multi-Scale Plasma Turbulence in the Diffuse Interstellar Medium

Details Multi-Scale Plasma Turbulence in the Diffuse Interstellar Medium Multi-Scale Plasma Turbulence in the Diffuse Interstellar Medium

Oct 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ssrv...99..261s&link_type=abstract

Space Science Reviews, v. 99, Issue 1/4, p. 261-270 (2001).

Physics

14

Scientific paper

I discuss how radioastronomical observations can provide information on the turbulence that governs the propagation of cosmic rays in the Galaxy. Interstellar radio wave propagation effects, collectively referred to as interstellar scintillations, yield information on the spatial power spectra of fluctuations in plasma density and magnetic field. Results of relevance to cosmic-ray physics are the existence of interstellar turbulence over a wide range of spatial scales (which can thus interact with a wide range of cosmic ray energies), the detection of magnetic field fluctuations in association with this turbulence, and a change in the nature of the turbulence on spatial scales of about 3.5 parsecs. A number of mysteries remain, such as the apparent suppression of Fast Magnetosonic wave generation by the interstellar turbulence.

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