Plasma turbulence in the interstellar medium
  The interstellar medium is a multi-phase, magnetized, and highly turbulent
medium. In this paper, we address both theoretical and observational aspects of
plasma turbulence in the interstellar medium. We successively consider radio
wave propagation through a plasma and radio polarized emission. For each, we
first provide a theoretical framework in the form of a few basic equations,
which enable us to define useful diagnostic tools of plasma turbulence; we then
show how these tools have been utilized to detect and interpret observational
signatures of plasma turbulence, and what astronomers have learned from them
regarding the nature, the sources, and the dissipation of turbulence in the
interstellar medium.
