Animation gallery

• Sample SPH simulation of the giant impact
  This is an example result of SPH simulation of the giant impact. Total number of SPH particles is 9216 (=8192+1024). Impactor mass is 1/8 of the protoearth mass. The relative orbit is parabolic. (May 3, 1999)
• Lots of movies for collision of two stars
• Evolution of a BH pair in a spherical galaxy with 64k particles. BH mass is 1% of the total mass of the galaxy. Initial galaxy model is a Plummer model.
• Gravothermal Oscillation with 32k particles. The x-axis is log radius. The white curve is the log number density and the red curve is log temperature. The system of units is Heggie units. Each frames are running average over 80 snapshots. Sampling period is 0.5 time unit (in late phases 0.125).
• Gravothermal Oscillation with 16k particles.
• Capture of the protomoon by earth
  
  Well, I'm NOT against the giant impact hypothesis. This calculation resulted in a direct capture of moon simply because initial angular momentum is a bit too large. Mass ratio of the earth and impactor is 4:1, and initial orbit is parabolic. More movies are comming soon. (Nov 9, 1998)