NOAO > Observing Info > Approved Programs > 2013B-0410
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NOAO > Observing Info > Approved Programs > 2013B-0410 |
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PI: Rahul I. Patel, Stony Brook University, Rahul.Patel.1@stonybrook.edu
Address: Physics Department, 100 Nicolls Rd., Stony Brook University, NY 11733, USA
CoI: Stanimir Metchev, Stony Brook University
Title: Confirmation of Debris Disks from WISE Using High Resolution Mid-IR Imaging
Abstract: We propose to obtain seeing-limited N11.7-band images with COMICS on Subaru of a sample of candidate debris disk-host stars from the WISE All- Sky Data Release. The candidates were identified by cross-correlating the Hipparcos and WISE catalogs and selecting stars with excesses in the W3 (12(mu) m) or W4 (22(mu) m) bands: potential asteroid belt analog hosts. We have already excluded candidates with WISE photometry contaminated by unresolved 2MASS stellar companions within the WISE beam, or by uneven mid-infrared background. However, we have been unable to exclude contamination from very red unresolved sources seen in projection within the WISE beam, but not detected in 2MASS: e.g., background AGN. Subaru has a much higher angular resolution in N11.7 (0.5\arcsec, near diffraction-limited) than WISE at W3 (6.5\arcsec), which will increase the fidelity of our excess detections from the current ~84% confidence level to >99.9%.
National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360
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NOAO > Observing Info > Approved Programs > 2013B-0410 |
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