[ home | research | personal | resume | links ]

Galaxy Collision Simulations

Galaxy collision simulation by Summers, Mihos and Hernquist, showing the stars in yellow and gas clouds in blue. Click on the image below to start the simulation.

More information.

Galaxy collision simulation by Matteo, Springel and Hernquist showing how the gas clouds behave over a period of 2 billion years. The color of the gas clouds indicate their temperature, from cool (blue) to hot (yellow). Click on the image below to start the simulation.

More information.

Detailed galaxy collision simulation by Volker Springel showing the same collision twice: once for just the gas clouds, and a second time for just the stars. Click on the image below to start the simulation.

The great Andromeda-Milky Way collision

View how our night sky will change as the Milky Way and the Andromeda galaxy approach each other as a result of their mutual gravitational attraction. In this simulation the camera is continuously pointed at the center of our galaxy in an all-sky view of events. Sit back, watch us closing in on the Andromeda galaxy, and hold on tight, as our Solar system is going to go on quite a ride! Click on the image below to start the simulation.

More information

Merging group of galaxies

If a collision of two galaxies is not enough, then consider this simulation of a group of galaxies by Joshua Barnes. Click on the image below to start the simulation.

Do it yourself: model a Galaxy Crash

Here is an interactive java applet which allows you to model galaxy collisions on your own computer. With this applet you can study how galaxies collide and merge gravitationally and how the effects of the collision depend on the properties of the galaxies. You can also recreate collisions between real interacting galaxies observed in the sky.

Back to the Galaxy Crash Course page