New nearby white dwarf systems Virtual Observatory Resource

Authors
  1. Subasavage J.P.
  2. Henry T.J.
  3. Bergeron P.
  4. Dufour P.
  5. Hambly N.C.,Beaulieu T.D.
  6. Published by
    CDS
Abstract

We present spectra for 33 previously unclassified white dwarf systems brighter than V=17, primarily in the southern hemisphere. Of these new systems, 26 are DA, 4 are DC, 2 are DZ, and 1 is DQ. We suspect that three of these systems are unresolved double degenerates. We obtained VRI photometry for these 33 objects, as well as for 23 known white dwarf systems without trigonometric parallaxes, also primarily in the southern hemisphere. For the 56 objects, we converted the photometry values to fluxes and fit them to a spectral energy distribution using the spectroscopy to determine which model to use (i.e., pure hydrogen, pure helium, or metal-rich helium), resulting in estimates of Teff and distance.

Keywords
  1. white-dwarf-stars
  2. infrared-photometry
  3. effective-temperature
Bibliographic source Bibcode
2007AJ....134..252S
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/134/252
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/134/252
Document Object Identifer DOI
doi:10.26093/cds/vizier.51340252

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/134/252
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/134/252
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/134/252
IVOA Table Access TAP
http://tapvizier.cds.unistra.fr/TAPVizieR/tap
Run SQL-like queries with TAP-enabled clients (e.g., TOPCAT).
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
http://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/134/252/wd?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/134/252/wd?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/134/252/wd?

History

2009-11-04T14:48:52Z
Resource record created
2009-11-04T14:48:52Z
Created
2017-06-30T05:47:40Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr