Syllabus+(Spring),+Radiation+II

 1. radiative scattering and diffusion, lines and continuum; the Eddington approximation, Rosseland approximation, two-stream approximation  2. radiative transfer in extended media - atmospheres & clouds: equivalent widths, curve of growth, abundance determinations, photon trapping, escape probability formalism, Sobolev approximation & large-velocity gradient models, non-local effects.  3. photodissociation cross-sections, radiative recombination & recombination lines, resonant photoexcitation, H 2 photodissociation & fluorescence.  4. dust emission, scattering, absorption and emission efficiencies [Mie theory], Kramers-Kronig relations, extinction curves, solid-state bands, PAH bands, spectra of circumstellar envelopes and disks.  5. polarized light, Stokes parameters  6. focused topics, optional to instructor as time permits: radiation from disks: active and passive, pulsar emission processes,, X-ray fluorescence, masers, photon bubbles, Poynting-Robertson and Yarkovsky effects.
 * Radiation II **