Hot subdwarf stars in rejected PG catalog Virtual Observatory Resource

Authors
  1. Wade R.A.
  2. Stark M.A.
  3. Green R.F.
  4. Durrell P.R.
  5. Published by
    CDS
Abstract

The hot subdwarf (sd) stars in the Palomar Green (PG) catalog of ultraviolet excess (UVX) objects play a key role in investigations of the frequency and types of binary companions and the distribution of orbital periods. These are important for establishing whether and by which channels the sd stars arise from interactions in close binary systems. It has been suggested that the list of PG sd stars is biased by the exclusion of many stars in binaries, whose spectra show the CaII K line in absorption. A total of 1125 objects that were photometrically selected as candidates were ultimately rejected from the final PG catalog using this K-line criterion. We study 88 of these "PG-Rejects" (PGRs), to assess whether there are significant numbers of unrecognized sd stars in binaries among the PGR objects.

Keywords
  1. Subdwarf stars
  2. Ultraviolet photometry
Bibliographic source Bibcode
2009AJ....138..606W
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/138/606
IVOA Identifier IVOID
ivo://CDS.VizieR/J/AJ/138/606
Document Object Identifer DOI
doi:10.26093/cds/vizier.51380606

Access

Web browser access HTML
http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/138/606
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/138/606
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/138/606
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/138/606/pgr?
https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/138/606/pgr?
http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/138/606/pgr?

History

2012-02-12T13:41:02Z
Resource record created
2012-02-12T13:41:02Z
Created
2017-06-01T08:52:57Z
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