The Evolution of Dusty Debris Disks Around Solar Type Stars
Solar and Stellar Astrophysics
2015-06-18 v1
Abstract
We used chromospheric activity to determine the ages of 2,820 field stars.. We searched these stars for excess emission at 22 um 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 um excesses around 98 stars (a detection rate of 3.5%). Seventy-four of these 98 excess sources are presented here for the first time. We also measured the abundance of lithium in 8 dusty stars in order to test our stellar age estimates.
Keywords
Cite
@article{arxiv.1311.6055,
title = {The Evolution of Dusty Debris Disks Around Solar Type Stars},
author = {Laura Vican and Adam Schneider},
journal= {arXiv preprint arXiv:1311.6055},
year = {2015}
}
Comments
41 pages, 13 figures, 5 tables; accepted to ApJ