Gravitational dynamics WS25/26

Tutors: Rhea-Silvia Remus, Tadziu Hoffmann, Klaus Dolag

Tutorials

Mondays, 14-16: In this class you will be required to write small computer programs to solve physical problems. This will be done incrementally in small steps, so if you have only little programming experience to date you will have the opportunity to pick this up. (Like all important skills, this will require some effort and lots of experimentation from your side.) But keep in mind that programming is not the main aspect of these tutorials — understanding physics is.

Basics

You will need

You can also do your calculations (remotely, via ssh) on the computers of the LMU Physik CIP Pool.

Tutorial schedule

Time and Location for WS 2025/26 will be Mondays, 14–16, USM Lecture hall.
Tutorial numberContentDate

T0Introduction to the shell and gnuplot 2025-10-13
T1Units and acceleration; first program 2025-10-20
T2Gravitational forces; vectors and loops 2025-10-27
T3Euler integrator 2025-11-03
T4Euler and other integrators 2025-11-10
T5Kepler fitting 2025-11-17
T6Multiple (test) particles and extended potentials 2025-11-24
T7General 3-body problem (ejection, softening) 2025-12-01
T8Lagrange points (restricted 3-body problem) 2025-12-08
T9General N-body problem (free-fall collapse) 2025-12-15
T10Dynamical friction 2026-01-13
T11Colliding galaxies 2026-01-20
T12Visualization of galaxies in cosmological simulations2026-01-27

Grading

As Hausarbeit is not longer possible since WS23/24, there will be a written exams!

The exam is planned to be on 5.02.26 (date can still change) and will be at the same time and location as the lecture, so 14–16, USM Lecture hall. Some bonus points from the submitted discussion sheets at the beginning of the Tutorials will be incorporated.