On radial motion of dense regions and objects in protoplanitary-like disks
arXiv:0906.1119
Abstract
Astronomers recently discovered a non-trivial radial motion of stars within our galaxy and were able to reproduce the results using n-body numerics. I modeled a protoplanitary-like disk within a newtonian -body problem and considered the stability of local trajectories giving a qualitative explanation to the observed radial motion. As a prospect there will be a short estimate on the impact on spiral arms.
5 pages, changed some words to describe the ideas more fittingly