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05-04-11, 06:24 PM
I got this from Ben Willet today. It's an animation which gives an example of what some of the n-body simulation workunits you guys are running are simulating. http://www.rpi.edu/~willeb/StreamAnimation.gif And his caption from his thesis:
This animation shows N-body simulations of the Sagittarius (large), Orphan (medium) and GD-1 (small) stellar streams. The Milky Way Galaxy is shown edge-on, with the Sun located on the left side of the disk. The legend shows the +Z direction, out of the Galactic disk. The stellar streams are created by allowing spherical collections of particles to evolve for four billion years within the Milky Way's gravity. The Sagittarius and Orphan streams are formed from dwarf galaxies, whereas the GD-1 stream is formed from a globular cluster. The Orphan Stream has been used by Rensselaer researchers to imply a total Galactic mass less than originally believed.
More... (http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2392)
This animation shows N-body simulations of the Sagittarius (large), Orphan (medium) and GD-1 (small) stellar streams. The Milky Way Galaxy is shown edge-on, with the Sun located on the left side of the disk. The legend shows the +Z direction, out of the Galactic disk. The stellar streams are created by allowing spherical collections of particles to evolve for four billion years within the Milky Way's gravity. The Sagittarius and Orphan streams are formed from dwarf galaxies, whereas the GD-1 stream is formed from a globular cluster. The Orphan Stream has been used by Rensselaer researchers to imply a total Galactic mass less than originally believed.
More... (http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=2392)