Hydromagnetic Wave Heating of the Low-Density Interstellar Medium
Abstract
Using a simple model for supernova remnant sources of MHD waves, the authors calculate the energy spectrum of waves in the intercloud medium and the heating rate resulting from their dissipation. The authors then construct models of thermal phases of interstellar gas in ionization and thermal equilibrium and demonstrate that wave dissipation can be an important heating mechanism which can account for the observed high H I temperatures in low-density (intercloud) neutral gas.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1988
- DOI:
- 10.1086/166706
- Bibcode:
- 1988ApJ...332..984F
- Keywords:
-
- Energy Spectra;
- Interstellar Gas;
- Interstellar Matter;
- Magnetohydrodynamic Waves;
- Molecular Clouds;
- Supernova Remnants;
- Gas Temperature;
- Magnetohydrodynamic Shear Heating;
- Stellar Coronas;
- Ultraviolet Spectra;
- Astrophysics;
- HYDROMAGNETICS;
- INTERSTELLAR: MATTER;
- STARS: SUPERNOVAE;
- WAVE MOTIONS