| Preface | p. ix |
| Atomic Structure | p. 1 |
| Beginnings | p. 1 |
| The Hydrogen Atom | p. 3 |
| Eigenstates in the spherical representation | p. 3 |
| High symmetry of the hydrogen atom, separation in parabolic coordinates | p. 6 |
| The Two-electron Atom | p. 8 |
| The ground state of helium | p. 9 |
| Excited states | p. 12 |
| Configuration interaction | p. 16 |
| Heavier Atoms | p. 17 |
| Configurations and states | p. 17 |
| Simple screening pictures | p. 20 |
| The Thomas-Fermi self-consistent field model | p. 22 |
| Exact treatments: Hartree-Fock and configuration interaction | p. 28 |
| Line Spectra and Their Uses | p. 30 |
| Atomic spectra in astronomy | p. 30 |
| Doppler shifts of spectral lines | p. 34 |
| Problems | p. 37 |
| Coupling of Atoms to Radiation | p. 41 |
| Introduction | p. 41 |
| Photoabsorption and Photoemission | p. 42 |
| The Oscillator strength | p. 43 |
| Alternative forms of the dipole matrix element | p. 46 |
| Selection rules | p. 49 |
| Moments and sum rules | p. 53 |
| Charged-particle Collisions | p. 55 |
| The Generalized Oscillator strength | p. 55 |
| Total cross-section | p. 59 |
| The Negative Ion of Hydrogen | p. 60 |
| The ground state of H[superscript -] | p. 61 |
| Photodetachment of H[superscript -] | p. 63 |
| Radiative capture | p. 64 |
| Problems | p. 66 |
| Atoms in Weak, Static Fields | p. 69 |
| Introduction | p. 69 |
| External Electric and Magnetic Fields | p. 70 |
| Coupling to external fields | p. 70 |
| Time-independent perturbation theory | p. 71 |
| The Stark effect | p. 76 |
| The Zeeman effect | p. 78 |
| Internal Perturbations in an Atom | p. 82 |
| Relativistic mass correction | p. 82 |
| Spin-orbit coupling | p. 83 |
| Other corrections | p. 84 |
| Problems | p. 85 |
| Atoms in Strong Magnetic Fields | p. 87 |
| Introduction | p. 87 |
| Free electrons in a magnetic field | p. 88 |
| Excited States in a Magnetic Field | p. 91 |
| Basic Hamiltonian and spectrum | p. 91 |
| Degenerate perturbation theory in an n-manifold | p. 97 |
| Large-scale numerical calculations | p. 106 |
| Quasi-classical JWKB analysis | p. 110 |
| Rydberg diamagnetism in other atoms | p. 114 |
| Strong Field Effects on Low-lying States | p. 114 |
| Introduction | p. 114 |
| Hydrogen in an ultrastrong magnetic field | p. 115 |
| Complex atoms in ultrastrong fields | p. 122 |
| Complex atoms in very strong, but not ultrastrong, fields | p. 126 |
| Strong Magnetic Fields in Astronomy | p. 131 |
| Problems | p. 133 |
| Electron Correlations | p. 135 |
| Introduction | p. 135 |
| Electron Correlations | p. 136 |
| Qualitative picture | p. 136 |
| The spectrum of He and H[superscript -] | p. 137 |
| Experimental observation | p. 141 |
| Hyperspherical Coordinates | p. 142 |
| Coulomb potential and hyperspherical harmonics in six dimensions | p. 149 |
| Adiabatic hyperspherical method | p. 151 |
| Description of resonances | p. 156 |
| High-lying doubly-excited states and double ionization | p. 161 |
| Dielectronic Recombination | p. 164 |
| Problems | p. 167 |
| Diatomic Molecules | p. 169 |
| Introduction | p. 169 |
| Structure of Diatomic Molecules | p. 170 |
| Basic mechanism and nomenclature of covalent bonds | p. 170 |
| Molecular orbitals and states of simple diatomic molecules | p. 173 |
| The Born-Oppenheimer approximation | p. 176 |
| Rotations and vibrations of the internuclear axis | p. 179 |
| Anharmonicities and rotation-vibration coupling | p. 182 |
| Parity of molecular states | p. 184 |
| Effect of nuclear spin | p. 185 |
| Molecular Spectra | p. 187 |
| Rotational spectra | p. 187 |
| Vibrational spectra | p. 189 |
| Raman spectra | p. 192 |
| Electronic spectra | p. 193 |
| External field effects on molecular spectra | p. 199 |
| Collisional processes | p. 199 |
| Astrophysical Applications | p. 200 |
| Problems | p. 205 |
| Polyatomic Molecules | p. 207 |
| Introduction | p. 207 |
| Structure and Spectra of Polyatomic Molecules | p. 207 |
| Born-Oppenheimer approximation and electronic structure | p. 207 |
| Rotation of polyatomic molecules and spectra | p. 211 |
| Vibrations of polyatomic molecules | p. 215 |
| Degeneracies and rovibronic couplings | p. 221 |
| Astrophysical Applications | p. 224 |
| Problems | p. 227 |
| References | p. 229 |
| Index | p. 233 |
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