It is proposed that there are circumstellar dust disks around a variety of post main sequence stars. Examples of systems with infrared excesses that can be explained by such disks include the nearby single white dwarf G29-38, and the post main sequence binary system, the Red Rectangle. There is evidence for millimeter-size particles in orbit around some of these stars. The study of these systems can provide clues to understanding the evolution of disks and the formation and evolution of planets.
Friday, 25 April 2003
11:00am
Array Operations Center Auditorium
Local Host: Michael Rupen