The WIRED Survey II: Infrared Excesses in the SDSS DR7 White Dwarf Catalog

Abstract

With the launch of the {\em Wide-field Infrared Survey Explorer} ({\em WISE}), a new era of detecting planetary debris and brown dwarfs around white dwarfs (WDs) has begun with the {\em 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 {\em WISE}, Two-Micron All Sky Survey (2MASS), UKIRT Infrared Deep Sky Survey (UKIDSS), and SDSS DR7 photometric catalogs. From $\sim 18,000$ input targets, there are {\em WISE} detections comprising 344 "naked" WDs (detection of the WD photosphere only), 1020 candidate WD+M dwarf binaries, 42 candidate WD+brown dwarf (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 {\em WISE} photometry. Some of these detections could be the result of contaminating sources within the large ($\approx6\arcsec$) {\em 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 {\em WISE} photometric bands, including the relative frequencies of candidate WD+M, WD+BD, and WD+disk systems.

73 pages, 23 figures, Accepted to ApJS. Full tables available at http://www.stsci.edu/~debes/tools.html

References in corpus (18)

• The UKIRT Infrared Deep Sky Survey (UKIDSS)
• The Occurrence and Mass Distribution of Close-in Super-Earths, Neptunes, and Jupiters
• The WFCAM Science Archive
• The UKIRT Wide Field Camera ZYJHK Photometric System: Calibration from 2MASS
• A gaseous metal disk around a white dwarf
• Pollution of single white dwarfs by accretion of many small asteroids
• Externally-polluted white dwarfs with dust disks
• Survival of a brown dwarf after engulfment by a red giant star
• Debris Disks Around White Dwarfs: The DAZ Connection
• SDSSJ104341.53+085558.2: A second white dwarf with a gaseous debris disc
• The chemical diversity of exo-terrestrial planetary debris around white dwarfs
• A Debris Disk around the Central Star of the Helix Nebula?
• Infrared Emission from the Dusty Disk Orbiting GD 362, An Externally-Polluted White Dwarf
• Spitzer IRAC Observations of White Dwarfs. II. Massive Planetary and Cold Brown Dwarf Companions to Young and Old Degenerates
• New DQ white dwarfs in the Sloan Digital Sky Survey DR4: confirmation of two sequences
• Cool Companions to White Dwarf Stars from the Two Micron All Sky Survey All Sky Data Release
• Detection of a Variable Infrared Excess Around SDSS 121209.31+013627.7
• Circumstellar Disks at White Dwarfs: Observations

Cited by in corpus (80)

• A $Gaia$ Data Release 2 catalogue of white dwarfs and a comparison with SDSS
• SDSS DR7 White Dwarf Catalog
• The Link Between Planetary Systems, Dusty White Dwarfs, and Metal Polluted White Dwarfs
• Circumstellar Debris and Pollution at White Dwarf Stars
• Foretellings of Ragnarök: World-engulfing Asymptotic Giants and the Inheritance of White Dwarfs
• High-Resolution Spectroscopy of Extremely Metal-Poor Stars from SDSS/SEGUE: I. Atmospheric Parameters and Chemical Compositions
• Simulations of two-planet systems through all phases of stellar evolution: implications for the instability boundary and white dwarf pollution
• Global Models of Runaway Accretion in White Dwarf Debris Disks
• The frequency and infrared brightness of circumstellar discs at white dwarfs
• Long-term evolution of three-planet systems to the post-Main Sequence and beyond
• Doppler-imaging of the planetary debris disc at the white dwarf SDSS J122859.93+104032.9
• Detectable close-in planets around white dwarfs through late unpacking
• A Trio of Metal-Rich Dust and Gas Disks Found Orbiting Candidate White Dwarfs with K-Band Excess
• The unbiased frequency of planetary signatures around single and binary white dwarfs using $Spitzer$ and $Hubble$
• The Frequency of Debris Disks at White Dwarfs
• Spitzer Observations of White Dwarfs: the Missing Planetary Debris Around DZ Stars
• Planetary engulfment as a trigger for white dwarf pollution
• Numerical Simulations of Collisional Cascades at the Roche Limits of White Dwarf Stars
• The SDSS-2MASS-WISE Ten Dimensional Stellar Color Locus
• The Drop during Less than 300 days of a Dusty White Dwarf's Infrared Luminosity
• Kepler and the seven dwarfs: detection of low-level day-timescale periodic photometric variations in white dwarfs
• Infrared observations of white dwarfs and the implications for the accretion of dusty planetary material
• A machine learning approach for identification and classification of symbiotic stars using 2MASS and WISE
• The WIRED Survey. IV. New Dust Disks from the McCook & Sion White Dwarf Catalog
• Two white dwarfs in ultrashort binaries with detached, eclipsing, likely substellar companions detected by K2
• White dwarf-main sequence binaries from SDSS DR8: unveiling the cool white dwarf population
• Transient outburst events from tidally disrupted asteroids near white dwarfs
• Detection of Weak Circumstellar Gas around the DAZ White Dwarf WD 1124-293: Evidence for the Accretion of Multiple Asteroids
• The Fate of Exomoons in White Dwarf Planetary Systems
• Infrared-excess white dwarfs in the Gaia 100 pc sample
• Numerical Simulations of Gaseous Disks Generated from Collisional Cascades at the Roche Limits of White Dwarf Stars
• White dwarf pollution by hydrated planetary remnants: Hydrogen and Metals in WD J204713.76-125908.9
• Solar Abundances of Rock Forming Elements, Extreme Oxygen and Hydrogen in a Young Polluted White Dwarf
• WD0837+185:the formation and evolution of an extreme mass ratio white dwarf-brown dwarf binary in Praesepe
• Infrared Excesses around Bright White Dwarfs from Gaia and unWISE I
• Most white dwarfs with detectable dust discs show infrared variability
• Another one grinds the dust: Variability of the planetary debris disc at the white dwarf SDSS J104341.53+085558.2
• The dust never settles: collisional production of gas and dust in evolved planetary systems
• The first sub-70 minute non-interacting WD-BD system: EPIC212235321
• A 3 Gyr White Dwarf with Warm Dust Discovered via the Backyard Worlds: Planet 9 Citizen Science Project
• Dusty WDs in the $WISE$ All Sky Survey $\cap$ SDSS
• Simultaneous infrared and optical observations of the transiting debris cloud around WD 1145+017
• Emission lines in the atmosphere of the irradiated brown dwarf WD0137-349B
• A Word to the WISE: Confusion is Unavoidable for WISE-selected Infrared Excesses
• Infrared Excesses around Bright White Dwarfs from Gaia and unWISE. II
• Tidal circularization of gaseous planets orbiting white dwarfs
• On the nature of the hard X-ray sources SWIFTJ1907.3-2050, IGRJ12123-5802 and IGRJ19552+0044
• Radio Weak BL Lac objects in the Fermi era
• The 2QDES Pilot : The luminosity and redshift dependence of quasar clustering
• Bright 22 $\mu$m Excess Candidates from WISE All-Sky Catalog and Hipparcos Main Catalog
• WIRED for EC: New White Dwarfs with $\text{WISE}$ Infrared Excesses and New Classification Schemes from the Edinburgh-Cape Blue Object Survey
• An independent test of the photometric selection of white dwarf candidates using LAMOST DR3
• WISE Detection of the Galactic Low-Mass X-Ray Binaries
• Secular chaos in white-dwarf planetary systems: origins of metal pollution and short-period planetary companions
• Distant White Dwarfs in the US Naval Observatory Flagstaff Station Parallax Sample
• Dynamical evolution of two-planet systems and its connection with white dwarf atmospheric pollution
• The origin of circumstellar features in the spectra of hot DA white dwarfs
• Spectroscopic identifications of blue H-alpha excess sources in the Kepler field-of-view
• Black-Body Stars
• Near-infrared variability in dusty white dwarfs: tracing the accretion of planetary material
• A magnetic white-dwarf accretion model for the anomalous X-ray pulsar 4U 0142+61
• A catalogue of white dwarf candidates in VST ATLAS
• White Dwarfs with Infrared Excess from LAMOST Data Release 5
• The WIRED Survey III: An Infrared Excess around the Eclipsing Post-Common Envelope Binary SDSS J030308.35+005443.7
• A power law decay evolution scenario for polluted single white dwarfs
• Disk or Companion: Characterizing Excess Infrared Flux in Seven White Dwarf Systems with Near-Infrared Spectroscopy
• The far-ultraviolet spectra of two hot PG1159 stars
• Discovery of a resolved white dwarf-brown dwarf binary with a small projected separation: SDSS J222551.65+001637.7AB
• UV-excess sources with a red/IR-counterpart: low-mass companions, debris disks and QSO selection
• Near-Infrared Imaging of White Dwarfs with Candidate Debris Disks
• White Dwarf Variability with gPhoton: Pulsators
• Serendipitous discovery of a dusty disc around WDJ181417.84-735459.83
• Two substellar survivor candidates; one found and one missing
• A Catalog of 531 White Dwarf Candidates in the Local Galactic Halo from Gaia Data Release 2
• Characterizing Exoplanets for Assessing Their Potential Habitability
• Gaia white dwarfs with infrared excess I. The 100 pc catalogue
• PHL 5038AB: Is the brown dwarf causing pollution of its white dwarf host star?
• Six indications of radical new physics in supernovae Ia
• FGK 22 $\mu$m Excess Stars in LAMOST DR2 Stellar Catalog
• The unreasonable effectiveness of the $n\Sigma v$ approximation