J/MNRAS/465/2849ivo://CDS.VizieR/J/MNRAS/465/2849doi:10.26093/cds/vizier.74652849CDSTremblay P.-E.Gentile-fusillo N.Raddi R.Jordan S.Besson C.,Gansicke B.T.Parsons S.G.Koester D.Marsh T.Bohlin R.Kalirai J.,Deustua S.2024-08-16T20:20:02Z2019-02-01T14:09:53ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsvisible-astronomytrigonometric-parallaxstellar-distancestellar-massesstellar-radiiThe Gaia Data Release 1 (DR1) sample of white dwarf parallaxes is presented, including six directly observed degenerates and 46 white dwarfs in wide binaries. This data set is combined with spectroscopic atmospheric parameters to study the white dwarf mass-radius relationship (MRR). Gaia parallaxes and G magnitudes are used to derive model atmosphere-dependent white dwarf radii, which can then be compared to the predictions of a theoretical MRR. We find a good agreement between Gaia DR1 parallaxes, published effective temperatures (T_eff_) and surface gravities (logg), and theoretical MRRs. As it was the case for Hipparcos, the precision of the data does not allow for the characterization of hydrogen envelope masses. The uncertainties on the spectroscopic atmospheric parameters are found to dominate the error budget and current error estimates for well-known and bright white dwarfs may be slightly optimistic. With the much larger Gaia DR2 white dwarf sample, it will be possible to explore the MRR over a much wider range of mass, T_eff_, and spectral types.2017MNRAS.465.2849Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/465/2849CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toB/wd : Spectroscopically identified white dwarfs (McCook+, 2014)I/239 : The Hipparcos and Tycho Catalogues (ESA 1997)I/259 : The Tycho-2 Catalogue (Hog+ 2000)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)I/337 : Gaia DR1 (Gaia Collaboration, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/465/2849https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/465/2849http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/465/2849https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/465/2849https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/465/2849http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/465/2849GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/465/2849/table1 (Parallaxes of directly observed white dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/465/2849/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/465/2849/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/465/2849/table1?GETtext/xml+votable180.050000true12.29124335.38860920.005555555555555556Cone search capability for table J/MNRAS/465/2849/table2 (White dwarfs in wide binaries: binary parameters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/465/2849/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/465/2849/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/465/2849/table2?GETtext/xml+votable180.050000true8.261865344.73698470.0055555555555555566/222 477 709 1077 1805 1890 2402 2536 2761 3345 3682 6129 6705 7212 7886 8559 9066 9109 9483 10173 10359 10386 11629 11984 12055 12639 13013 13327 13714 15462 16053 16209 16249 16329 16608 17352 17748 17790 17879 18139 18532 18548 19097 19119 19141 19265 19727 20404 20738 20940 22300 22709 23182 23755 25099 25255 25552 25792 27125 28028 28260 28559 29486 29855 31497 31690 31894 33015 33243 34519 37890 38955 39612 39709 39807 40283 40540 42091 42149 42700 42760 46598 46612 47957 48728 491251.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/465/2849?format=asciiOpticaldefaultJ/MNRAS/465/2849/table1Parallaxes of directly observed white dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWD name (HHMM+DDM)meta.id;meta.maincharANameAlternative Namemeta.idcharHIP/TycHIP/Tycho IDmeta.idcharPlx? Gaia parallaxmaspos.parallaxfloatnullablee_Plx? rms uncertainty on Plx (1)masstat.error;pos.parallaxfloatnullableGmag? Gaia G magnitudemagphot.mag;em.optfloatnullablee_Gmag? rms uncertainty on Gmagmagstat.error;phot.mag;em.opt.BfloatnullablePlxO? Parallax from other originmaspos.parallax.trigfloatnullablee_PlxO? rms uncertainty on PlxOmasstat.errorfloatnullabler_PlxO? Reference for PlxO, in refs.dat filemeta.ref;pos.frameintnullableVmagV magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.Vfloatr_VmagReference for Vmag, in refs.dat filemeta.ref;pos.frameintSpTypeSpectral type (2)src.spTypecharTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintlogg? Spectroscopic surface gravity (3)log(cm.s**-2)phys.gravityfloatnullablee_logg? rms uncertainty on logglog(cm.s**-2)stat.errorfloatnullabler_TeffReference for Teff and logg, in refs.dat filemeta.ref;pos.framecharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/465/2849/table2White dwarfs in wide binaries: binary parametersSimbadNameSimbad column added by the CDSmeta.idcharHIP/TycHIP/Tycho IDmeta.idcharPrimaryPrimary namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWD name (HHMM+DDM) or other namesmeta.id;meta.maincharANameAlternative Namemeta.idcharVmagV magnitude of the primarymagphot.mag;em.opt.VfloatSepSeparationarcsecpos.angDistance;src.orbitalfloatRefReference, in refs.dat filemeta.ref;pos.frame;meta.fileint_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/465/2849/table3Parallaxes of white dwarfs in wide binariesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWD name (HHMM+DDM) or other namesmeta.id;meta.maincharANameAlternative Namemeta.idcharPlx? Gaia parallaxmaspos.parallaxfloatnullablee_Plx? rms uncertainty on Plx (1)masstat.error;pos.parallaxfloatnullableGmag? Gaia G magnitudemagphot.mag;em.optfloatnullablee_Gmag? rms uncertainty on Gmagmagstat.error;phot.mag;em.opt.BfloatnullablePlxO? Parallax from other originmaspos.parallax.trigfloatnullablee_PlxO? rms uncertainty on PlxOmasstat.errorfloatnullabler_PlxO? Reference for PlxO, in refs.dat filemeta.ref;pos.frameintnullableVmag? V magnitudemagphot.mag;em.opt.Vfloatnullablee_Vmag? rms uncertainty on Vmagmagstat.error;phot.mag;em.opt.Vfloatnullabler_Vmag? Reference for Vmag, in refs.dat filemeta.ref;pos.frameintnullableSpTypeSpectral type (2)src.spTypecharTeff? Effective temperatureKphys.temperature.effectiveintnullablee_Teff? rms uncertainty on TeffKstat.error;phys.temperature.effectiveintnullablelogg? Spectroscopic surface gravity (3)log(cm.s**-2)phys.gravityfloatnullablee_logg? rms uncertainty on logglog(cm.s**-2)stat.errorfloatnullabler_TeffReference for Teff and logg, in refs.dat filemeta.ref;pos.framecharJ/MNRAS/465/2849/table4Semi-empirical white dwarf mass-radius relationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSample[DW] sample (1)src.samplecharNameWD name (HHMM+DDM) or other namesmeta.id;meta.maincharMassH? Mass from Hipparcos datasolMassphys.massfloatnullablee_MassH? rms uncertainty on MassHsolMassstat.errorfloatnullableRadH? Radius from Hipparcos data0.01solRadphys.size.radiusfloatnullablee_RadH? rms uncertainty on RadH0.01solRadstat.errorfloatnullableMassG? Mass from Gaia datasolMassphys.massfloatnullablee_MassG? rms uncertainty on MassGsolMassstat.errorfloatnullableRadG? Radius from Gaia data0.01solRadphys.size.radiusfloatnullablee_RadG? rms uncertainty on RadG0.01solRadstat.errorfloatnullableRadMRRRadius from MMR (mass-radius relationship)0.01solRadphys.size.radiusfloate_RadMRRrms uncertainty on RadMMR0.01solRadstat.errorfloatJ/MNRAS/465/2849/refsReferencesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference numbermeta.id;meta.mainintprimaryBibCodeBibCodemeta.bib.bibcodecharAutAuthor's namemeta.bib.authorcharComCommentsmeta.notechar