The White Dwarfs Within 20 Parsecs of the Sun: Kinematics and Statistics

@article{Sion2009TheWD,
  title={The White Dwarfs Within 20 Parsecs of the Sun: Kinematics and Statistics},
  author={E. Sion and J. Holberg and T. Oswalt and G. Mccook and R. Wasatonic},
  journal={The Astronomical Journal},
  year={2009},
  volume={138},
  pages={1681-1689}
}
  • E. Sion, J. Holberg, +2 authors R. Wasatonic
  • Published 2009
  • Physics
  • The Astronomical Journal
  • We present the kinematical properties, distribution of spectroscopic subtypes, and stellar population subcomponents of the white dwarfs within 20 pc of the Sun. We find no convincing evidence of halo white dwarfs in the total 20 pc sample of 129 white dwarfs nor is there convincing evidence of genuine thick disk subcomponent members within 20 parsecs. Virtually, the entire 20 pc sample likely belongs to the thin disk. The total DA to non-DA ratio of the 20 pc sample is 1.6, a manifestation of… CONTINUE READING
    67 Citations

    Figures and Tables from this paper.

    THE WHITE DWARFS WITHIN 25 pc OF THE SUN: KINEMATICS AND SPECTROSCOPIC SUBTYPES
    • 40
    • PDF
    The 25 Parsec Local White Dwarf Population
    • 46
    • PDF
    The Gaia 20 pc white dwarf sample
    • 45
    • Highly Influenced
    • PDF
    The field white dwarf mass distribution
    • 57
    • PDF
    The white dwarf luminosity function
    • 24
    • PDF
    A GRAVITATIONAL REDSHIFT DETERMINATION OF THE MEAN MASS OF WHITE DWARFS. DA STARS
    • 66
    • PDF
    Cool DZ white dwarfs in the SDSS
    • 48
    • Highly Influenced
    • PDF

    References

    SHOWING 1-10 OF 38 REFERENCES
    A NEW LOOK AT THE LOCAL WHITE DWARF POPULATION
    • 112
    • PDF
    Wide Binary Systems and the Nature of High-Velocity White Dwarfs
    • 51
    3D kinematics of white dwarfs from the SPY project
    • 57
    • PDF
    Limits on the Halo White Dwarf Component of Baryonic Dark Matter from the Hubble Deep Field
    • 20
    • PDF
    A lower limit of 9.5 Gyr on the age of the Galactic disk from the oldest white dwarf stars
    • 170
    Spectroscopic Identification of Cool White Dwarfs in the Solar Neighborhood
    • 56
    • PDF
    INFRARED SIGNATURES OF DISRUPTED MINOR PLANETS AT WHITE DWARFS
    • 224
    • PDF
    Detailed Spectroscopic and Photometric Analysis of DQ White Dwarfs
    • 93
    • PDF