Solar neighborhood. XXXIX. Nearby white dwarfs Virtual Observatory Resource

Authors
  1. Subasavage J.P.
  2. Jao W.-C.
  3. Henry T.J.
  4. Harris H.C.
  5. Dahn C.C.,Bergeron P.
  6. Dufour P.
  7. Dunlap B.H.
  8. Barlow B.N.
  9. Ianna P.A.
  10. Lepine S.,Margheim S.J.
  11. Published by
    CDS
Abstract

We present 114 trigonometric parallaxes for 107 nearby white dwarf (WD) systems from both the Cerro Tololo Inter-American Observatory Parallax Investigation (CTIOPI) and the U. S. Naval Observatory Flagstaff Station (NOFS) parallax programs. Of these, 76 parallaxes for 69 systems were measured by the CTIOPI program and 38 parallaxes for as many systems were measured by the NOFS program. A total of 50 systems are confirmed to be within the 25-pc horizon of interest. Coupled with a spectroscopic confirmation of a common proper-motion companion to a Hipparcos star within 25pc as well as confirmation parallax determinations for two WD systems included in the recently released Tycho Gaia Astrometric Solution catalog, we add 53 new systems to the 25-pc WD sample-a 42% increase. Our sample presented here includes four strong candidate halo systems, a new metal-rich DAZ WD, a confirmation of a recently discovered nearby short-period (P=2.85hr) double degenerate, a WD with a new astrometric perturbation (long period, unconstrained with our data), and a new triple system where the WD companion main-sequence star has an astrometric perturbation (P~1.6year).

Keywords
  1. white-dwarf-stars
  2. visible-astronomy
  3. trigonometric-parallax
  4. infrared-photometry
  5. broad-band-photometry
  6. astrometry
  7. stellar-spectral-types
  8. proper-motions
  9. stellar-masses
  10. effective-temperature
Bibliographic source Bibcode
2017AJ....154...32S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/32
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/154/32
Document Object Identifer DOI
doi:10.26093/cds/vizier.51540032

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History

2017-10-06T09:47:40Z
Resource record created
2017-10-06T09:47:40Z
Created
2024-10-11T20:09:51Z
Updated

Contact

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Postal Address
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