Spitzer IRAC Observations of White Dwarfs. I. Warm Dust at Metal-Rich Degenerates

@article{Farihi2008SpitzerIO,
  title={Spitzer IRAC Observations of White Dwarfs. I. Warm Dust at Metal-Rich Degenerates},
  author={J. Farihi and B. Zuckerman and E. Becklin},
  journal={The Astrophysical Journal},
  year={2008},
  volume={674},
  pages={431-446}
}
  • J. Farihi, B. Zuckerman, E. Becklin
  • Published 2008
  • Physics
  • The Astrophysical Journal
  • This paper presents the results of a Spitzer IRAC 3-8 μm photometric search for warm dust orbiting 17 nearby, metal-rich white dwarfs, 15 of which apparently have hydrogen-dominated atmospheres (type DAZ). G166-58, G29-38, and GD 362 manifest excess emission in their IRAC fluxes and the latter two are known to harbor dust grains warm enough to radiate detectable emission at near-infrared wavelengths as short as 2 μm. Their IRAC fluxes display differences compatible with a relatively larger… CONTINUE READING
    88 Citations
    INFRARED SIGNATURES OF DISRUPTED MINOR PLANETS AT WHITE DWARFS
    • 224
    • PDF
    SPITZER OBSERVATIONS OF WHITE DWARFS: THE MISSING PLANETARY DEBRIS AROUND DZ STARS
    • 64
    • Highly Influenced
    • PDF
    A trio of metal-rich dust and gas discs found orbiting candidate white dwarfs with K-band excess
    • 47
    • PDF
    Spitzer Observations of the Oldest White Dwarfs in the Solar Neighborhood
    • 26
    • Highly Influenced
    • PDF
    Signs of a faint disc population at polluted white dwarfs
    • 59
    • PDF

    References

    SHOWING 1-10 OF 134 REFERENCES
    The New Class of Dusty DAZ White Dwarfs
    • 116
    • PDF
    Debris Disks Around White Dwarfs: The DAZ Connection
    • 126
    • Highly Influential
    • PDF
    Infrared Emission from the Dusty Disk Orbiting GD 362, an Externally Polluted White Dwarf
    • 85
    • PDF
    The infrared excess of G29-38: A brown dwarf or dust?
    • 132
    • Highly Influential
    The Dust Cloud around the White Dwarf G29-38
    • 141
    • Highly Influential
    • PDF
    A near-infrared spectroscopic search for very-low-mass cool companions to notable DA white dwarfs
    • 40
    • PDF
    Excess infrared radiation from a white dwarf—an orbiting brown dwarf?
    • 203
    IRS Spectra of Solar-Type Stars: A Search for Asteroid Belt Analogs
    • 80
    • PDF