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IV. Chemistry—chemical kinetics, gas phase reactions, grain adsorption and chemistry,
H2 formation, PAHs, complex organics and prebiological organics.
Yung & DeMore (chemical kinetics, Peridier) ch. 3, pp. 55-76
DW pp. 35-42 (types of reactions; 216-222 (mostly gas phase chemistry).
S sec.5.3, pp. 122-128 (way too skimpy)
Bakes (Peridier), ch.3 (diffuse clouds, rate eqs., gas phase, grain chem.)
Bakes, ch.4 (chemistry in molecular clouds)
V. Thermal Energetics
Thermal equilibrium calculations. Heating and cooling processes‹lots of them! Thermal instability (easy version)
and the two-phase model of the ISM.
DW pp. 28-35 (brief but useful)
S 5. Ionization and dissociation.
S 6. Energy equation, cooling timescale, heating rates, electron-ion cooling rate, HII regions, HI regions)
Reviews by Genzel and by Field (heating by photoelectric effect, cosmic and x-rays, magnetic ion slip, turbulence,Š)
Modern paper for HI:. Wolfire et al. 1995 (results, phase diagram).
Molecular clouds: Goldsmith & Langer 1978 (also excellent summary of heating rates), Neufeld et al. 1995
(much more detail); Padoan et al. 2001 (cooling rates in turbulent ISM).
VI. Gas Dynamics
Hydrodynamic equations, virial theorem, shocks (hydro., radiating, MHD), instabilities (gravitational, thermal,
Rayleigh-Taylor, Kelvin-Helmholtz), turbulence.
DW 6 (basic eqns., shocks),
S10 (basic eqns., shocks, R-T instability), S11.2, S13.3a (grav. instability),
Hartmann (Peridier) App. 2,(grav. instability), secs. 2.2-2.4, pp. 19-29 (grav. instab. of cores, virial theorem,
stability of magnetic clouds)
Papers on cloud collisions, simulations of turbulence.
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