SDSS4 confirmed white dwarfs catalog

DOI

We present a catalog of 9316 spectroscopically confirmed white dwarfs from the Sloan Digital Sky Survey Data Release 4. We have selected the stars through photometric cuts and spectroscopic modeling, backed up by a set of visual inspections. About 6000 of the stars are new discoveries, roughly doubling the number of spectroscopically confirmed white dwarfs. We analyze the stars by performing temperature and surface gravity fits to grids of pure hydrogen and helium atmospheres. Among the rare outliers are a set of presumed helium-core DA white dwarfs with estimated masses below 0.3M_{sun}_, including two candidates that may be the lowest-mass yet found. We also present a list of 928 hot subdwarfs.

Cone search capability for table J/ApJS/167/40/catalog (SDSS DR4 white dwarfs and hot subdwarfs)

Cone search capability for table J/ApJS/167/40/table5 (List of stars from DR1 catalog missing from this catalog)

Identifier
DOI http://doi.org/10.26093/cds/vizier.21670040
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/167/40
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/167/40
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/167/40
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/167/40
Provenance
Creator Eisenstein D.J.; Liebert J.; Harris H.C.; Kleinman S.J.; Nitta A.,Silvestri N.; Anderson S.A.; Barentine J.C.; Brewington H.J.; Brinkmann J.,Harvanek M.; Krzesinski J.; Neilsen E.H.Jr; Long D.; Schneider D.P.,Snedden S.A.
Publisher CDS
Publication Year 2008
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics; Stellar Astronomy