NOAO >   Observing Info >   Approved Programs >   2014A-0407

Small NOAO Logo

Proposal Information for 2014A-0407


PI: Rahul I. Patel, Stony Brook University, rahul.patel.1@stonybrook.edu
Address: Physics Department, 100 Nicolls Rd, Stony Brook, NY 11790, USA

CoI: Stanimir Metchev, University of Western Ontario & SBU

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



NOAO >   Observing Info >   Approved Programs >   2014A-0407

noaoprop-help@noao.edu

Small NOAO Logo