This module explores the physics of gravity and of accretion in an astrophysical context. Gravity  is the main force that operates on astronomical length scales and governs the dynamics, structures and evolutions of astronomical objects. This module aims to develop the methodology to explore how gravity affects astronomical objects and especially self-gravitating objects from star clusters to galaxies and entire galaxy clusters.  The starting point of the module is basic mechanics as we explore the gravitationally driven dynamics in systems as simple as a planetary or binary system to those as complex as entire galaxies.

Accretion in astronomical systems can have significant affects on astronomical systems from the mass gain itself and also through the energy release as mass falls down a potential well. We will explore aspects of accretion, how accretion occurs, what limits accretion and how accretion can affect the systems themselves as well as the light we see from them.
Course Type: 2022-2023 Modules
Shared Course: Yes
Feeder Course: No