@article{AlbersSpahn2006,
  author    = {Albers, Nicole and Spahn, Frank},
  title     = {The influence of particle adhesion on the stability of agglomerates in Saturn's rings},
  issn      = {0019-1035},
  doi       = {10.1016/j.icarus.2005.10.011},
  year      = {2006},
  abstract  = {In planetary rings, binary collisions and mutual gravity are the predominant particle interactions. Based on a viscoelastic contact model we implement the concept of static adhesion. We discuss the collision dynamics and obtain a threshold velocity for restitution or agglomeration to occur. The latter takes place within a range of a few cm s(-1) for icy grains at low temperatures. The stability of such two-body agglomerates bound by adhesion and gravity in a tidal environment is discussed and applied to the saturnian system. A maximal agglomerate size for a given orbit location is obtained. In this way we are able to resolve the borderline of the zone where agglomerates can exist as a function of the agglomerate size and thus gain an alternative to the classical Roche limit. An increasing ring grain size with distance to Saturn as observed by the VIMS-experiment on board the Cassini spacecraft can be found by our estimates and implications for the saturnian system will be addressed.},
  language  = {en}
}
@article{SpahnSchmidtAlbersetal.2006,
  author    = {Spahn, Frank and Schmidt, J{\"u}rgen and Albers, Nicole and H{\"o}rning, Marcel and Makuch, Martin and Seiß, Martin and Kempf, Sascha and Srama, Ralf and Dikarev, Valeri and Helfert, Stefan and Moragas-Klostermeyer, Georg and Krivov, Alexander V. and Sremcevic, Miodrag and Tuzzolino, Anthony J. and Economou, Thanasis and Gr{\"u}n, Eberhard},
  title     = {Cassini dust measurements at Enceladus and implications for the origin of the E ring},
  doi       = {10.1126/science.1121375},
  year      = {2006},
  language  = {en}
}