| Issue |
A&A
Volume 436, Number 1, June II 2005
|
|
|---|---|---|
| Page(s) | 9 - 16 | |
| Section | Astrophysical processes | |
| DOI | https://doi.org/10.1051/0004-6361:20040364 | |
| Published online | 20 May 2005 | |
Damping and wave energy dissipation in the interstellar medium
II. Fast magnetosonic waves
Institut für Theoretische Physik, Lehrstuhl IV: Weltraum- und Astrophysik, Ruhr-Universität Bochum, 44780 Bochum, Germany e-mail: [fspanier;r.schlickeiser]@tp4.rub.de
Received:
1
March
2004
Accepted:
12
February
2005
The heating rate of the interstellar medium, especially the
warm ionized medium, is calculated considering damping of fast
magnetosonic waves. Starting with an anisotropic spectrum the energy
dissipation rate is derived from the damping rates. The results
show that the damping of fast magnetosonic waves is an
extraordinarily strong source of heat. The ion-neutral
and viscous damping contribute largely to the heating. Furthermore it is
shown that one would expect a strong parallelization of the spectrum
with exponents well above 
.
Key words: magnetohydrodynamics (MHD) / plasmas / turbulence / waves / ISM: general / ISM: magnetic fields
© ESO, 2005
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