Interstellar Medium Sculpting of Nearby Debris Disks
John Debes (Goddard)
Monday 14th December 2009, 12:00pm
Pratt conference room, 60 Garden Street
Many nearby debris disks that have been resolved in scattered light
show a variety of twists, warps, or asymmetries. Often these features
are noted and the presence of unseen planetary companions is inferred.
However, the outer regions of debris disks can be impacted by the
surrounding interstellar environment. In this talk, I present a simple
model involving supersonic gas drag on debris disk dust particles that
explains the scattered light observations of HD 61005, HD 15115, and
HD 32297, three perturbed debris disks.