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The WIRED SurveyWith the launch of the Wide-field Infrar.ed Survey Explorer (WISE), a new era of detecting planetary debris and brown dwarfs (BDs) around white dwarfs (WDs) has begun with the WISE InfraRed Excesses around Degenerates (WIRED) Survey. The WIRED Survey is sensitive to substellar objects and dusty debris around WDs out to distances exceeding 100 pc, well beyond the completeness level of local WDs. In this paper, we present a cross-correlation of the preliminary Sloan Digital Sky Survey (SDSS) Data Release 7 (DR7) WD catalog between the WISE, Two-Micron All Sky Survey (2MASS), UKIRT Infrared Deep Sky Survey (UKIDSS), and SDSS DR7 photometric catalogs. From -18,000 input targets, there are WISE detections comprising 344 "naked" WDs (detection of the WD photosphere only), 1020 candidate WD+M dwarf binaries, 42 candidate WD+BD systems, 52 candidate WD+dust disk systems, and 69 targets with indeterminate infrared excess. We classified all of the detected targets through spectral energy distribution model fitting of the merged optical, near-IR, and WISE photometry. Some of these detections could be the result of contaminating sources within the large (approx. 6") WISE point-spread function; we make a preliminary estimate for the rates of contamination for our WD+BD and WD+disk candidates and provide notes for each target of interest. Each candidate presented here should be confirmed with higher angular resolution infrared imaging or infrared spectroscopy. We also present an overview of the observational characteristics of the detected WDs in the WISE photometric bands, including the relative frequencies of candidate WD+M, WD+BD, and WD+disk systems.
Document ID
20120014288
Document Type
Reprint (Version printed in journal)
Authors
Debes, John H. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hoard, D. W. (California Inst. of Tech. Pasadena, CA, United States)
Wachter, Stefanie (California Inst. of Tech. Pasadena, CA, United States)
Leisawitz, David T. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Cohen, Martin (Monterey Inst. for Research in Astronomy Marina, CA, United States)
Date Acquired
August 26, 2013
Publication Date
December 1, 2011
Publication Information
Publication: The Astrophysical Journal Supplement Series
Volume: 197
Subject Category
Astrophysics
Report/Patent Number
GSFC.JA.6513.2012
Funding Number(s)
CONTRACT_GRANT: UCLA 1000-S-MA756
CONTRACT_GRANT: UCLA FAU 26311
Distribution Limits
Public
Copyright
Other