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Gallery

Movies


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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