Driven SHO

W/O phasors

Manipulate

To obtain

Oscillator strength

Rayleigh & Thomson scattering

Resonance fluorescence

Recap

Fluorescence

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

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

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

Cosmic abundances

Convective model

Ba and Zr

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

Chapter 1; Chapter 2; Chapter 3; Chapter 4; Chapter 5; Chapter 6; Chapter 7

Chapter 8

Chapter 10

Chapter 11

Chapter 12

Chapter 13

Chapter 14

Chapter 15

Homepage

Damped Harmonic Oscillator

Special cases 1 and 2

Special case 3, real roots

Complex roots

Resulting equation

SHO lifetime

Lamb shift analog

Oscillator strengths

Application to Ca II

Classical and QM

Emission and absorption

Formulae

Line strengths

Six-

Radial integral

Specific calculations

Multiplet strengths

Lifetimes

Formulae

Summed

Summed

Branching fractions

Level diagram

Decay curve

Tabulations