The First Detection of Warping of Outer Stellar Disks in N-Body Simulations of Isolated and Rapidly Rotating Disk-shaped Galaxies Academic Article uri icon


  • Abstract The evolution of the isolated, axially Jeans-stable (an initial velocity dispersion of particles is equal to Toomre's stabilizing one), and rapidly rotating stellar disk of flat galaxies is investigated by N-body simulations. An algorithm of the direct summation for a simulation code is used. As the model evolves during the first rotation, the density wave spiral structure develops in the plane. At somewhat later times, in the normal to the plane direction, a characteristic warping of the outer disk begins to grow. The origin of this new …

publication date

  • October 28, 2002