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Finding Asteroid belt Analogues with WISE

Published online by Cambridge University Press:  06 January 2014

Rahul I. Patel
Affiliation:
Department of Physics & Astronomy, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794-3800
Stanimir Metchev
Affiliation:
Department of Physics & Astronomy, Stony Brook University, 100 Nicolls Rd, Stony Brook, NY 11794-3800
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Abstract

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We present the detection of stars with infrared (IR) excesses attributed to circumstellar debris disks from the WISE All-Sky Survey at the WISE 12 and 22 μm bandpasses (W3 and W4, respectively). Excess flux at these wavelengths is significant because it traces material in the regions of terrestrial planet formation. We searched for debris disks by cross-matching Hipparcos main sequence stars with the All-Sky Data Release from WISE and seeking excess flux at W3 and W4. Our sample is confined to a volume of 75 pc around the sun, and outside the galactic plane (|b|>5°). Debris disk-bearing stars were identified as 95%-confidence outliers in 2MASS/WISE color distributions, after checking for erroneous photometry and contamination from unrelated nearby objects.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013 

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