The grain dynamics and structures of debris discs
1 Department of Applied Mathematics, National Hsinchu University of Education, Hsin-Chu, Taiwan
2 Department of Physics and Institute of Astronomy, National Tsing-Hua University, Hsin-Chu, Taiwan
Numerical simulations are used to construct the possible dynamical models of the Vega’s debris disc. New dust grains are assumed to be generated from two clumpy regions. The goal is to test whether an overall circular-symmetric structure can be constructed if the birth places of grains are not uniformly distributed in a ring region.
© Owned by the authors, published by EDP Sciences, 2011