Turbulence in the Interstellar Medium: Energetics and Driving Mechanisms

Details Turbulence in the Interstellar Medium: Energetics and Driving Mechanisms Turbulence in the Interstellar Medium: Energetics and Driving Mechanisms

2002-11-27

arxiv.org/abs/astro-ph/0211616v1

Astronomy and Astrophysics

Astrophysics

10 pages, for publication in a proceedings issue of Astrophysics & Space Science recording the conference "From Observations t

Scientific paper

Interstellar turbulence is expected to dissipate quickly in the absence of continuous energy input. I examine the energy available for driving the turbulence from six likely mechanisms: magnetorotational instability, gravitational instability, protostellar outflows, H II region expansion, stellar winds, and supernovae. I conclude that supernovae contribute far more energy than the other mechanisms, and so form the most likely drving mechanism.

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