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Assumptions
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Limitations
Contents
The Physics Behind XSTAR
Subsections
Assumptions
Input
Elementary Considerations
Algorithm
Atomic Level Populations
Radiative Excitation
Atomic Levels
Thermal Equilibrium
Heating and Cooling: “Photon Point of View” vs. “Electron Point of View”
Recombination Continuum Emission and Escape
Line Emission and Escape
Continuum Emission
Continuum Opacity and Thomson Scattering
Continuum Transfer
Radiation Field Quantities and Transfer Details
Energy Conservation
Algorithm
Atomic Processes
Photoionization
Collisional Ionization
Recombination
Collisional Excitation and Radiative Transition Probabilities
Charge Transfer