Close binary systems from SDSS DR4 Virtual Observatory Resource

Authors

1. Silvestri N.M.
2. Hawley S.L.
3. West A.A.
4. Szkody P.
5. Bochanski J.J.,Eisenstein D.J.
6. McGehee P.
7. Schmidt G.D.
8. Smith J.A.
9. Wolfe M.A.,Harris H.C.
10. Kleinman S.J.
11. Liebert J.
12. Nitta A.
13. Barentine J.C.,Brewington H.J.
14. Brinkmann J.
15. Harvanek M.
16. Krzesinski J.
17. Long D.,Neilsen E.H.Jr
18. Schneider D.P.
19. Snedden S.A.

Published by

CDS

Abstract

We present a spectroscopic sample of 746 detached close binary systems from the Sloan Digital Sky Survey (SDSS) Fourth Data Release (2006ApJS..162...38A). The majority of these binaries consist of a white dwarf primary and a low-mass secondary (typically M dwarf) companion. We have determined the temperature and gravity for 496 of the white dwarf primaries and the spectral type and magnetic activity properties for 661 of the low-mass secondaries. We have estimated the distances for each of the white dwarf-main-sequence star binaries and use white dwarf evolutionary grids to establish the age of each binary system from the white dwarf cooling times.

Keywords

1. multiple-stars
2. white-dwarf-stars
3. m-stars
4. dwarf-stars
5. visible-astronomy
6. sloan-photometry

Bibliographic source Bibcode

2006AJ....131.1674S

See also HTML

https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/131/1674

IVOA Identifier IVOID

ivo://CDS.VizieR/J/AJ/131/1674

Document Object Identifer DOI

doi:10.26093/cds/vizier.51311674

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http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/131/1674

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http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/131/1674/data?