Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21733309h&link_type=abstract
American Astronomical Society, AAS Meeting #217, #333.09; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
The Wide-field Infrared Survey Explorer (WISE) is a NASA medium class Explorer mission that was launched on 14 Dec 2009. WISE mapped the entire sky at 3.4, 4.6, 12, and 22 microns with 5-sigma point source sensitivities of approximately 0.08, 0.11, 1, and 6 mJy, respectively. Complete sky coverage was achieved in mid-July 2010. Prior to the first public release of WISE data planned for Spring 2011, several early science verification projects are being carried out by the WISE Science Team. The WISE InfraRed Excesses around Degenerates (WIRED) Survey has the goals of characterizing white dwarf (WD) stars in the WISE bands, confirming objects known to have IR excess from past observations (Spitzer, 2MASS, UKIDSS, etc.), and revealing new examples of WDs with IR excess that can be attributed to unresolved companions or debris disks. We are utilizing target lists drawn primarily from the Sloan Digital Sky Survey (SDSS) WD catalogs, as well as a separate sample from the McCook & Sion WD catalog. Preliminary results from the WIRED Survey utilizing 20% sky coverage with the SDSS Data Release 4 WD catalog yielded over 400 detections (S/N > 2) in at least one WISE band, and several new dust disk and WD+brown dwarf binary candidates. We will present an overview of the WIRED Survey results using the full WISE sky coverage with the SDSS Data Release 7 WD catalog (which contains over 18,000 targets). This work was supported in part by the NASA Postdoctoral Program (J.H.D.), and is based on data from: WISE, a joint project of UCLA and JPL/Caltech, funded by NASA; the UKIRT Infrared Deep Sky Survey; the Two Micron All Sky Survey, a joint project of the University of Massachusetts and IPAC/Caltech, funded by NASA and the NSF; and the Sloan Digital Sky Survey.
Cohen Martin
Debes John H.
Hoard Donald Wayne
Leisawitz David T.
Wachter Stefanie
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