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N-Body gravitation simulation, 2 galaxies collision

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Published on Jun 22, 2010

Here's my first attempt at simulating galaxy collision.
No collision is handled (no SPH, only pure gravity).
No initial velocity for each blackhole, that's why the system oscillate along a straight line.
Each black hole represents 90% of the total mass of the galaxy it belongs to.
Each star has a velocity set so that it's in a circular orbit around the black hole.
Motion blur is activated for sexy looking.
Color represents acceleration, that's to say gravity potential.

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| VIDEO LOG |
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Number of particles : 6000

Max tree depth : 256
Gravitational approximation : 0.10

Gravity : 0.010000
Gravity smoothing : 0.100000

Lowest acceleration : 0.000000.3
Highest acceleration : 0.100000.3

Time step : 0.010s
Simulation time : 35m 7s
Simulated time : 2m 30s

Video time : 30s
Playback time scale : 5.00x
Simulation factor : 0.071191
Frame per seconds : 7.1fps

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