Galactic Dynamics File

: Explaining the origin and stability of spiral structures through density wave theory.

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

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

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

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

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: