PHYS-401: Astrophysics IV : stellar and galactic dynamics

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Lectures in this course (29)

Explores stellar orbits in spherical potentials, including Keplerian orbits, nearly circular orbits, and the Miyamoto-Nagai potential.

Stellar Orbits and Galactic Rotation

Explores stellar orbits, Oort constants, and integral of motion in the Milky Way.

Stellar Orbits: Lagrange Points

Explores stellar orbits in rotating potentials, focusing on surfaces of section, integrals of motion, and stability around Lagrange points.

Stellar Orbits: Lindblad Resonances and Collisionless Boltzmann Equation

Explores weak bars, resonances, and equilibria in stellar systems.

Collisionless Boltzmann Equation

Explores the Collisionless Boltzmann Equation, Jeans theorems, and equilibria of collisionless systems, focusing on connections between barotropic fluids and ergodic stellar systems.

Collisionless Systems Equilibrium

Explores collisionless systems equilibrium, anisotropic distribution functions, Jeans Equations, and models with finite potential.

Virial Theorem in Astrophysics

Explores the application of the Virial Theorem in astrophysics, focusing on nebulae mass analysis and the principle of maximum entropy.

Stability of Collisionless Systems

Explores the stability of collisionless systems, covering entropy, weak perturbations, Jeans instability, and Landau damping.

Stability of Rotating Systems

Explores dispersion relations, system responses to perturbations, and the stability of rotating systems, focusing on the origin of spiral structures in galaxies.

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