Chapter 9
Absorption of Radiation

Free SHO
Driven SHO
W/O phasors
Manipulate
To obtain
Oscillator strength
Rayleigh & Thomson scattering
Resonance fluorescence
Recap
Fluorescence

General case

Radiation losses

Index of refraction

Forced Oscillation: Macmillan Encyclopedia

Line profiles (Sect. 9.4)

Absorption
Lorentzian profile
Area under
Integration
Wide wings Lorentzian/Gaussian
Natural, collisional broadening
Doppler broadening
Formula
Numerical examples
Convolution of two Gaussians
Complete the square
Fourier transforms
Two Gaussians
Two Lorentzians
Gaussian & Lorentzian (Voigt)
Inverse Lorentzian
Application
Summary

Astrophysical applications (Sect. 9.5)

Absorption
Bouguer's law
Absorption spectra
Solar spectrum
Equivalent width
Saturation
Self absorption
General line shape
Column densities
Curve of growth
with Voigt profile
Abundances
Examples
Criteria

Stellar Classifications (Sect. 9.5.2)

Boltzmann population
Temperature definitions
Excitation temperature determination
The grand fact
Ladies of the observatory
Annie Cannon and Cecilia Payne
Background
Iron?
Stellar classifications
Relation to temperature
Study of H and K lines
Ca⁺ H and K lines
Cosmic abundances
Convective model
Ba and Zr

Einstein coefficients(Sect. 9.6)

Blackbody radiation
Einstein formulation
(continued)
In modern notation
Einstein's AB paper in Translation (pdf)
Planck's summation
Emission and absorption
MB, BE and FD statistics
Photon gas

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Diverse

Lorentz-Drude theory

Hydrogenic dipole matrix elements