J/ApJ/725/1215ivo://CDS.VizieR/J/ApJ/725/1215doi:10.26093/cds/vizier.17251215CDSSiegel M.H.Hoversten E.A.Roming P.W.A.Landsman W.B.,Allende Prieto C.Breeveld A.A.Brown P.Holland S.T.Kuin N.P.M.,Page M.J.Vanden Berk D.E.2017-06-22T14:29:21Z2012-08-27T15:20:35ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frwhite-dwarf-starsultraviolet-photometryvisible-astronomysloan-photometryastronomical-modelsAt present, the precision of deep ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a uniform catalog of 11 new faint (u~17) ultraviolet standard stars. High-precision photometry of these stars has been taken from the Sloan Digital Sky Survey and Galaxy Evolution Explorer archives and combined with new data from the Swift Ultraviolet Optical Telescope to provide precise photometric measures extending from the near-infrared to the far-ultraviolet. These stars were chosen because they are known to be hot (20000<T_eff_<50000K) DA white dwarfs with published Sloan spectra that should be photometrically stable. This careful selection allows us to compare the combined photometry and Sloan spectroscopy to models of pure hydrogen atmospheres to both constrain the underlying properties of the white dwarfs and test the ability of white dwarf models to predict the photometric measures.2010ApJ...725.1215Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/725/1215CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/306 : The SDSS Photometric Catalog, Release 8 (Adelman-McCarthy+, 2011)III/235 : Spectroscopically Identified White Dwarfs (McCook+, 2008)J/MNRAS/411/2770 : Hot white dwarfs in GALEX-DR5 (Bianchi+, 2011)J/AJ/135/1239 : Spectral distances to DA white dwarfs (Holberg+, 2008)J/ApJS/167/40 : SDSS4 confirmed white dwarfs catalog (Eisenstein+, 2006)J/AJ/132/1221 : VJHK and SDSS photometry of DA white dwarfs (Holberg+, 2006)J/ApJS/119/207 : IUE echelle spectra of hot white dwarfs (Holberg+, 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/725/1215https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/725/1215http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/725/1215https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/725/1215https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/725/1215http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/725/1215GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/725/1215/stars (Swift/GALEX/SDSS faint UV standard stars and model parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/725/1215/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/725/1215/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/725/1215/stars?GETtext/xml+votable180.050000true7.02711.020.0055555555555555566/7322 7380 7528 8207 10224 17214 18075 18794 25969 26081 263855.083490757027239e-19 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/725/1215?format=asciiUVOpticaldefaultJ/ApJ/725/1215/starsSwift/GALEX/SDSS faint UV standard stars and model parametersSpModel spectrummeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSWD identification (JHHMMSS.ss+DDMMSS.s)meta.id;meta.maincharprimaryRAJ2000Right ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainE(B-V)Reddening derived from the maps of Schlegel et al. (1998ApJ...500..525S)magphot.color.excessfloatumag4[16.4/17.9] SDSS-DR4 u-band magnitudemagphot.mag;em.opt.UfloatN[1/4] Number of Swift epoch(s)meta.numberintNtot[36/134] Total number of UVOT imagesmeta.numberintExpExposure timekstime.duration;obs.exposurefloatTeff[22300/30800] Model effective temperatureKphys.temperature.effective;meta.modelledintlogg[7.25/7.95] Model gravity surfacelog(cm.s**-2)phys.gravity;meta.modelledfloatAv[0.014/0.127] Model extinction (A_V_)magphys.absorption;meta.modelledfloatE08Display the data from Eisenstein et al., 2008, Cat. J/ApJS/167/40meta.ref.urlcharFUVGALEX FUV AB magnitude (153+/-47nm)magphot.mag;em.UV.100-200nmfloate_FUVFUV uncertainty (1)magstat.errorfloatNUVGALEX NUV AB magnitude (231+/-62nm)magphot.mag;em.UVfloate_NUVNUV uncertainty (1)magstat.errorfloatuvw2Swift/UVOT UVW2-band AB magnitude (193+/-65nm)magphot.mag;em.UVfloate_uvw2uvw2 uncertainty (1)magstat.errorfloatuvm2Swift/UVOT UVM2-band AB magnitude (225+/-50nm)magphot.mag;em.UVfloate_uvm2uvm2 uncertainty (1)magstat.errorfloatuvw1Swift/UVOT UVW1-band AB magnitude (260+/-69nm)magphot.mag;em.UVfloate_uvw1uvw1 uncertainty (1)magstat.errorfloatumagSwift/UVOT U-band AB magnitude (347+/-79nm)magphot.mag;em.opt.Ufloate_umagumag uncertainty (1)magstat.error;phot.mag;em.opt.UfloatVar[0.38/2.87] Variability indexsrc.var.indexfloatDR4+8Display the SDSS photometric catalogs -DR4, -DR7 and -DR8 within 1.5"meta.ref.urlcharSloanDisplay the SDSS online data for this white dwarfmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.refchar