Global effects of thermal conduction on two-phase media
Creators
- 1. California Univ., Berkeley (USA)
- 2. Joint Institute for Laboratory Astrophysics, Boulder, CO (USA)
Description
The evolution of two-phase systems of astrophysical gases which change mass between the phases is studied to see whether a steady state is ever reached. The criterion for thermal instability in a cloudy medium is derived. The evolution of the pressure and density of the intercloud medium under the combined effects of heating and radiative cooling of the intercloud gas on the one hand and evaporation and condensation of the clouds on the other is determined. The equilibrium density to which the system evolves is determined for the case when the pressure is fixed. The theory is illustrated by the case in which the intercloud gas is heated by Compton scattering in a hard radiation field and cooled by bremsstrahlung and inverse Compton scattering. 37 refs
Additional details
Additional titles
- Augmented title (English)
- In astrophysical plasmas
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 358
- Series
- Astrophys. J.
- Journal Page Range
- 375-391
- ISSN
- 0004-637X
- CODEN
- ASJOA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 22006757
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- ABSORPTION SPECTRA; BREMSSTRAHLUNG; COMPTON EFFECT; COOLING; COSMIC GASES; DENSITY; EVAPORATION; GALAXY NUCLEI; HEATING; INHOMOGENEOUS PLASMA; INTERSTELLAR SPACE; LYMAN LINES; MASS TRANSFER; QUASARS; STEADY-STATE CONDITIONS; THERMAL CONDUCTIVITY
- Descriptors DEC
- BASIC INTERACTIONS; COSMIC RADIO SOURCES; ELASTIC SCATTERING; ELECTROMAGNETIC INTERACTIONS; ELECTROMAGNETIC RADIATION; FLUIDS; GASES; INTERACTIONS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; PLASMA; RADIATIONS; SCATTERING; SPACE; SPECTRA; THERMODYNAMIC PROPERTIES