Spectroscopic survey of bright white dwarfs Virtual Observatory Resource

Authors
  1. Gianninas A.
  2. Bergeron P.
  3. Ruiz M.T.
  4. Published by
    CDS
Abstract

We have conducted a spectroscopic survey of over 1300 bright (V<=17.5), hydrogen-rich white dwarfs based largely on the last published version of the McCook & Sion (1999ApJS..121....1M, Cat. III/235) catalog. The complete results from our survey, including the spectroscopic analysis of over 1100 DA white dwarfs, are presented. High signal-to-noise ratio optical spectra were obtained for each star and were subsequently analyzed using our standard spectroscopic technique where the observed Balmer line profiles are compared to synthetic spectra computed from the latest generation of model atmospheres appropriate for these stars. First, we present the spectroscopic content of our sample, which includes many misclassifications as well as several DAB, DAZ, and magnetic white dwarfs. Next, we look at how the new Stark broadening profiles affect the determination of the atmospheric parameters. When necessary, specific models and analysis techniques are used to derive the most accurate atmospheric parameters possible. In particular, we employ M dwarf templates to obtain better estimates of the atmospheric parameters for those white dwarfs that are in DA+dM binary systems.

Keywords
  1. white-dwarf-stars
  2. stellar-spectral-types
  3. effective-temperature
  4. surveys
  5. spectroscopy
Bibliographic source Bibcode
2011ApJ...743..138G
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/743/138
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/743/138
Document Object Identifer DOI
doi:10.26093/cds/vizier.17430138

Access

Web browser access HTML
https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/743/138
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/743/138
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/743/138
IVOA Table Access TAP
https://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).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/743/138/table5?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/743/138/table5?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/743/138/table5?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/743/138/table1?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/743/138/table1?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/743/138/table1?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/743/138/table3?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/743/138/table3?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/743/138/table3?
IVOA Cone Search SCS
For use with a cone search client (e.g., TOPCAT).
https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/743/138/table4?
https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/743/138/table4?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/743/138/table4?

History

2013-06-18T10:01:13Z
Resource record created
2013-06-18T10:01:13Z
Created
2017-11-29T11:49:24Z
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