Cargando…
Fundamentals of galaxy dynamics, formation and evolution /
Ignacio Ferreras presents a concise introduction to extragalactic astrophysics, with emphasis on stellar dynamics, and the growth of density fluctuations in an expanding Universe. Additional chapters are devoted to smaller systems (stellar clusters) and larger ones (galaxy clusters).
| Clasificación: | Libro Electrónico |
|---|---|
| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
London :
UCL Press,
2019.
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Intro; Title Page; Copyright; Contents; List of figures; List of tables; Preface; Acknowledgements; 1. An introduction to galaxy formation; 1.1. The main ingredients of a galaxy; 1.2. Observables; 1.3. Physical processes; 1.4. Stellar clusters; 1.5. A technical note on astronomical observations; 2. The classical theory of gravitation; 2.1. Gravitational force; 2.2. The Kepler problem; 2.3. Potential theory; 2.4. Gravitational potential energy; 2.5. Potential/density pairs: A few fundamental cases; 2.6. Two-dimensional projection; 3. A statistical treatment of stellar systems; 3.1. Phase space
- 3.2. The distribution function3.3. Relaxation time; 3.4. Local and distant encounters; 3.5. Collisionless Boltzmann equation; 3.6. Isolating integrals: Jeans theorem; 3.7. Examples of distribution functions; 3.8. Jeans equations; 3.9. The virial theorem; 3.10. Beyond the collisionless Boltzmann equation: The Fokker-Planck equation; 4. Understanding our Galaxy; 4.1. General description of the Galaxy; 4.2. Differential rotation in the Galaxy; 4.3. Vertical motion; 4.4. The collisionless Boltzmann equation in galactic coordinates; 4.5. Application of Jeans equations
- 4.6. The potential of the Galaxy5. Specific aspects of disc and elliptical galaxies; 5.1. 'Hot' versus 'Cold' dynamical systems; 5.2. Scaling relations; 5.3. Rotation versus 'pressure' in early-type galaxies; 5.4. A brief introduction to spiral arms in disc galaxies; 6. Galactic chemical enrichment; 6.1. Nucleosynthesis and the formation of galaxies; 6.2. General aspects of galactic chemical enrichment; 6.3. Basic equations of galactic chemical enrichment; 6.4. Chemistry as a cosmic clock; 7. The growth of density fluctuations; 7.1. A cosmology primer; 7.2. Linear regime
- 7.3. Spherical collapse7.4. Press-Schechter formalism; 7.5. Correlation function; 7.6. Cooling and the masses of galaxies; 8. Smaller stellar systems: Stellar clusters; 8.1. Open and globular clusters; 8.2. Internal evolutionary effects; 8.3. External effects: Tidal disruption; 8.4. Cluster evaporation: King models; 9. Larger stellar systems: Galaxy clusters; 9.1. The most massive structures; 9.2. X-ray measurements of the cluster mass; 9.3. Gravitational lensing; 9.4. Clusters and cosmology; 9.5. Environment-related processes; Further reading; Index