Stellar & Galactic Astrophysics (889F3)
15 credits, Level 7 (Masters)
In this module, you'll cover the following topics:
Stellar structure and evolution:
- observational properties of stars
- hydrostatic support and polytropes
- energy production
- equations of stellar structure
- end-points of stellar evolution
- supernovae and metal production
- the IMF, yields of (ionising) photons, metals, snr energy.
- stars as a collisionless fluid
- the Boltzmann equation
- the Jeans equations
- the Poisson equation
- simple stellar systems (spherical and disk).
- inviscid fluid equations and relationship to stellar dynamics
- hydrostatic gas disks
- shocks and blast waves
- accretion disks
- fluid instabilities (Kelvin Helmholtz/Rayleigh Taylor).
Physics of the ISM:
- description (relative energy densities of different components)
- thermal instability/multiphase structure
- Jeans instability (collapse of molecular clouds/star-formation)
- the living ISM (recycling and feedback).
33%: Practical (Workshop)
30%: Coursework (Problem Set)
70%: Examination (Unseen examination)
Contact hours and workload
This module is approximately 150 hours of work. This breaks down into about 33 hours of contact time and about 117 hours of independent study. The University may make minor variations to the contact hours for operational reasons, including timetabling requirements.
This module is running in the academic year 2020/21. We also plan to offer it in future academic years. It may become unavailable due to staff availability, student demand or updates to our curriculum. We’ll make sure to let our applicants know of such changes to modules at the earliest opportunity.
This module is offered on the following courses: