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Gallery

Movies


The Argo Simulation
Evolution of galaxies in the Argo simulation. The movie shows the gas surface density in green and stars in purple/yellow. [18 MB]
The Evolution of Galaxies in Cosmological
                Simulations
The Evolution of Galaxies in Cosmological Simulations. This movie was shown at the ETH Zürich Exhibition in the International Year of Astronomy 2009. [117 MB]
The Evolution of a
                Galaxy Group
This movie shows how a galaxy group grows over cosmic history. The color channels correspond to BRI filter bands and are approximately what one would see with his/her own eyes. [1.4 MB]

Images


A massive spiral galaxy is heavily distorted by a satellite galaxy (run with the SPH & N-body code GASOLINE).

A massive spiral galaxy
A massive spiral galaxy 2
A massive spiral galaxy III
A massive spiral galaxy IV
Redshift z~0.5. The age of the Universe is 8 billion years.
A few hundred million years later. An elliptical satellite approaches the disk galaxy.
3 million years later. The disk is heavily damaged.
8 million years later. The disk is partially restored.


False color images of the intergalactic gas in a cosmological simulation of a galaxy group. The simulations have been run with the AMR code RAMSES.

the center
                      of a galaxy group
expansion factor 0.5 (z=1)
size: 770 phys. kpc x 545 phys kpc
depth: 1000 phys. kpc

The Cosmic Web
expansion factor 0.28 (z=2.6)
size: 1324 phys. kpc x 1872 phys kpc
depth: 2898 phys. kpc

Filaments and Halos
expansion factor 0.37 (z=1.7)
size: 1600 phys. kpc x 2260 phys kpc
depth: 2740 phys. kpc

filaments
                      and halos
expansion factor 0.37 (z=1.7)
size: 1600 phys. kpc x 2260 phys kpc
depth: 2740 phys. kpc


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I created these movies and images with the help of GIMP, the ImageMagick suite and mencoder. Thanks folks for developing and maintaining these great software tools!

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