Jürgen Ehlers Spring School 2019

## Lecture Notes

lecture 1: waves in the linear approximation, polarizations, action on test-masses, generation by binary systems

lecture 2: waves on curved background, energy-momentum of GW, quadrupole formula, inspiral, time to merger, post-Newtonian

more details on derivations can be found in last year's lectures, and in the solutions to the exercises and the links below.

## Exercises

## Links

The basic physics of the binary black hole merger GW150914