Laura Vican¹ and Adam Schneider^2,3

¹Department of Physics and Astronomy, University of California, Los Angeles, CA 90095, USA
²Department of Physics and Astronomy, University of Georgia, Athens, GA 30602, USA
³Current Address: Department of Physics and Astronomy, The University of Toledo, Toledo, OH 43606, USA.

We used chromospheric activity to determine the ages of 2820 field stars. We searched these stars for excess emission at 22 μm with the Wide-Field Infrared Survey Explorer. Such excess emission is indicative of a dusty debris disk around a star. We investigated how disk incidence trends with various stellar parameters, and how these parameters evolve with time. We found 22 μm excesses around 98 stars (a detection rate of 3.5%). Of these 98 excess sources, 74 are presented here for the first time. We also measured the abundance of lithium in eight dusty stars in order to test our stellar age estimates.

Reference
Vican L and Schneider A (2014) The evolution of dusty debris disks around solar type stars. The Astrophysical Journal 780:154.
[doi:10.1088/0004-637X/780/2/154]

Link to Article