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Sensitive Identification of Nearby Debris Disks via Precise Calibration of WISE Data

Published online by Cambridge University Press:  27 January 2016

Rahul Patel ,
Stanimir Metchev ,
Aren Heinze  and
Joe Trollo
Rahul Patel
Affiliation:
Stony Brook University - email: [email protected]
Stanimir Metchev
Affiliation:
Stony Brook University - email: [email protected] Univeristy of Western Ontario - email: [email protected] Centre for Planetary Science and Exoploration
Aren Heinze
Affiliation:
Stony Brook University - email: [email protected]
Joe Trollo
Affiliation:
Stony Brook University - email: [email protected]
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Abstract

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Using data from the WISE All-Sky Survey, we have found >100 new infrared excess sources around main-sequence Hipparcos stars within 75 pc. Our empirical calibration of WISE photospheric colors and removal of non-trivial false-positive sources are responsible for the high confidence (>99.5%) of detections, while our corrections to saturated W1 and W2 photometry have for the first time allowed us to search for new infrared excess sources around bright field stars in WISE. The careful calibration and filtering of the WISE data have allowed us to probe excess fluxes down to roughly 8% of the photospheric emission at 22μm around saturated stars in WISE. We expect that the increased sensitivity of our survey will not only aid in understanding the evolution of debris disks, but will also benefit future studies using WISE.

Keywords

infrared: starsstars: circumstellar mattermethods: data analysisstatistical
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Issue S314: Young Stars & Planets Near the Sun , November 2015 , pp. 199 - 200
Copyright
Copyright © International Astronomical Union 2016 

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