The Evolution of Dusty Debris Disks Around Solar Type Stars

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.

41 pages, 13 figures, 5 tables; accepted to ApJ

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Cited by in corpus (19)

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• Circumstellar Debris Disks: Diagnosing the Unseen Perturber
• New debris disks in nearby young moving groups
• Disk Detective: Discovery of New Circumstellar Disk Candidates through Citizen Science
• Rocky Planet Formation: Quick and Neat
• Zeeman-Doppler imaging of active young solar type stars
• Zeeman-Doppler imaging of five young solar-type stars
• A near-infrared interferometric survey of debris-disk stars. VII. The hot/warm dust connection
• Emerging trends in metallicity and lithium properties of debris disc stars
• Magnetic activity of the young solar analogue V1358 Ori
• The Faintest WISE Debris Disks: Enhanced Methods for Detection and Verification
• Accretion and OH Photodissociation at a Nearby T Tauri System in the beta Pictoris Moving Group
• On the incidence of \textit{WISE} infrared excess among solar analog, twin and sibling stars
• Large Interferometer For Exoplanets (LIFE). XIV. Finding terrestrial protoplanets in the galactic neighborhood
• A WISE View of IRAS Debris Disks: Revising the Dust Properties
• Takeout and Delivery: Erasing the Dusty Signature of Late-stage Terrestrial Planet Formation
• FGK 22 $\mu$m Excess Stars in LAMOST DR2 Stellar Catalog