: Studying processes like dynamical friction (the "drag" on massive objects moving through a sea of stars) and violent relaxation . Essential Resources

The field is largely defined by a few foundational textbooks and modern interactive guides: Galactic Dynamics: Second Edition - Google Books

: Analyzing how individual stars move within these potentials, including orbits in axisymmetric and triaxial galaxies.

: Understanding systems where individual stellar encounters are rare enough to be ignored. This uses the Collisionless Boltzmann Equation and Jeans Equations to describe equilibrium.

At its heart, the field treats galaxies as many-body systems where stars interact primarily through a smooth gravitational potential. Key areas of study include:

: Calculating the gravitational potential generated by various mass distributions, such as disks, bulges, and dark matter halos.