Merger with mass ratio 1:10. Both structures have double power-law density profiles with inner and outer slopes of 0 and -5. The ejected particles are very visible because the outer density profile drops so quickly (15 Mb mp4, thanks to Anders O). Note the particles ejected during the first passage. [links]
Merger with mass ratio 1:10. Both structures have double power-law density profiles with inner and outer slopes of 0 and -3.5 (50 Mb mp4, thanks to Anders O). Note the particles ejected during the first passage. [links]
A spherical collapse. The initial structure is a Hernquist density profile, and initial velocities are zero. Note the ejected particles around time = 1.4 (90 Mb mov) [links]