A Model of Stochastic Collisions as the Cause of Clumps in Debris Disks

M. C. Wyatt, W. R. F. Dent, J. S. Greaves, W. S. Holland
2004 Symposium - International astronomical union  
We present a heuristic model for the collisional evolution of material in a debris disk. This is used to consider the probability that the 2-3% brightness clump observed in the sub-mm Fomalhaut disk is caused by stochastic collisions between large planetesimals. While this simple model finds that the probability that the clump is caused by collisions is low (about 1 in 80,000), a more detailed model is required to ascertain its true likelihood.
doi:10.1017/s007418090021838x fatcat:dnxkj7jdtna7daodxuyd45qr6m