- Classifying stars: magnitudes, colours, spectral types; physical properties: flux, luminosity, temperature, radius, mass; distances; stellar spectra;
- Stellar energy: gravitational contraction versus fusion, stellar nucleosynthesis, reaction rates, PP chain, CNO cycle, triple alpha process
- Hydrostatic equilibrium and radiation pressure; equation of state; energy transport: opacity, convection;
- Protostars: cloud collapse, Jeans criterion and fragmentation, initial mass function, evol tracks and ZAMS, T Tauri stars, protostellar jets....
- Main sequence stars: low mass and high mass stars, energy generation, PP chain versus CNO cycle; end of hydrogen core burning and lifetime on the MS
- Evolution off the main sequence: low mass versus high mass stars; red giant branch, degenerate gas pressure, AGB, helium flash, horizontal branch....
- Supernovae: type Ia and type II supernovae, light curves, explosive nucleosynthesis, supernovae remnants
- Neutron stars: neutron degeneracy, rotation, magnetic fields, pulsar lighthouse model, synchrotron radiation, spin-down and pulsar lifetimes.....
- Stellar mass black holes: formation mechanisms, escape velocity, Schwarzschild radius, event horizon, spaghettification; spacetime curvature.....
- Pulsating stars: the instability strip, partial ionisation zones, thermodynamic heat engines; modelling pulsations, radial and non-radial modes.....
- Binary stars: formation theories; evolution of close binaries: Roche limit and accretion disks, novae, cataclysmic variables, low mass and high mass.
- Stellar clusters: types of clusters, open clusters and stellar evolution models, globular clusters and distances; colour-magnitude diagrams.....
- Disscusion forum/Discussion Board
- Embedded Multimedia
- Online Quizzes/Tests
- Online assignment submission
- Standard Media
- Web links
- Assignment 1 - Computer Managed Tests x 2 (20%)
- Assignment 2 - Newsgroups (30%)
- Assignment 3 - Project (50%)
Textbooks are subject to change within the academic year. Students are advised to purchase their books no earlier than one to two months before the start of a subject
You cannot enrol in this unit if you have successfully completed any of the following subject(s) because they are considered academically equivalent:
You must have successfully completed the following subject(s) before starting this subject:
No special requirements
Following on from AST80004, this subject aims to cover the physical processes underlying stellar properties and the principles behind models of stellar evolution.