Theoretical Astrophysics

A compact introduction that walks through the physics of stars, radiation, and the structure of the universe. Clear lecture notes ideal for a first course in astrophysics.

M. Kachelrieß

Comprehensive lecture notes covering celestial mechanics, stellar physics, and the tools astronomers use to study the cosmos. A thorough starting point for undergraduates.

Institute of Theoretical Astrophysics

A clear introduction to the fluid dynamics that governs stars, accretion disks, and the interstellar medium. These lecture notes build the equations of astrophysical flows from the ground up.

Gordon I. Ogilvie

A short guide to the elements of stellar physics, from the main sequence to the equations of stellar structure. A concise resource for grasping how stars work.

Véronique Buat