author={Mark C. Wyatt and R. J. Smith and J. S. Greaves and Charles A. Beichman and Geoffrey C. Bryden and Carey M. Lisse},
  journal={The Astrophysical Journal},
In this paper a simple model for the steady state evolution of debris disks due to collisions is developed and confronted with the properties of the emerging population of seven Sun-like stars that have hot dust at 10 AU (η Corvi and HD 72905); one has three Neptune mass planets at <1 AU (HD 69830); all exhibit strong mid-IR silicate features. We consider the most likely origin for this transient dust to be a dynamical instability that scattered planetesimals inward from a more distant… 

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