Preface 1. History and overview 2. Ionization structure of planetary nebulae 3. Nebular line radiation 4. Nebular continuum radiation 5. The neutral gas component 6. The dust component 7. Observations of the central star of planetary nebulae 8. Morphologies of planetary nebulae 9. Problems and questions 10. Asymptotic giant branch stars - progenitors of planetary nebulae 11. Evolution of the central stars 12. Formation of planetary nebulae 13. Dynamical evolution of planetary nebulae 14. Proto-planetary nebulae - the transition objects 15. Evolution to the white dwarf stage 16. Distances to planetary nebulae 17. Comparison between evolutionary models and observations 18. PN in the galactic context 19. Chemical abundances 20. Planetary nebulae in other galaxies 21. Concluding remarks References Appendix: list of symbols and abbreviations Subject index.
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