J/MNRAS/457/1988ivo://CDS.VizieR/J/MNRAS/457/1988doi:10.26093/cds/vizier.74571988CDSRaddi R.Catalan S.Gansicke B.T.Hermes J.J.Napiwotzki R.,Koester D.Tremblay P.-E.Barentsen G.Farnhill H.J.Mohr-Smith M.,Drew J.E.Groot P.J.Guzman-Ramirez L.Parker Q.A.Steeghs D.,Zijlstra A.2024-08-15T20:17:55Z2017-04-13T11:50:48ZCDS support team

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

cds-question@unistra.frgalaxy-planesmilky-way-galaxywhite-dwarf-starsphotometrystellar-agesstellar-massesWe investigated the prospects for systematic searches of white dwarfs at low Galactic latitudes, using the VLT Survey Telescope H{alpha} Photometric Survey of the Galactic plane and Bulge (VPHAS+). We targeted 17 white dwarf candidates along sightlines of known open clusters, aiming to identify potential cluster members. We confirmed all the 17 white dwarf candidates from blue/optical spectroscopy, and we suggest five of them to be likely cluster members. We estimated progenitor ages and masses for the candidate cluster members, and compare our findings to those for other cluster white dwarfs. A white dwarf in NGC 3532 is the most massive known cluster member (1.13M_{sun}_), likely with an oxygen-neon core, for which we estimate an M_{sun}_ progenitor, close to the mass-divide between white dwarf and neutron star progenitors. A cluster member in Ruprecht 131 is a magnetic white dwarf, whose progenitor mass exceeded 2-3M_{sun}_. We stress that wider searches, and improved cluster distances and ages derived from data of the ESA Gaia mission, will advance the understanding of the mass-loss processes for low- to intermediate-mass stars.2016MNRAS.457.1988Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/457/1988CatalogResearchIsServedByTAP VizieR generic servicerelated-toII/341 : VPHAS+ DR2 survey (Drew+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/457/1988https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/457/1988http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/457/1988https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/457/1988https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/457/1988http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/457/1988GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tap2.367228618189496e-19 4.920466254354166e-19defaultJ/MNRAS/457/1988/table2Details for the 17 white dwarf candidates confirmed by this studyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintVPHASVPHAS name (JHHMMSS.s+DDMMSS.s)meta.id;meta.maincharumagu magnitudemagphot.mag;em.opt.Ufloate_umagrms uncertainty on umagmagstat.error;phot.mag;em.opt.Ufloatgmagg magnitudemagphot.mag;em.opt.Bfloate_gmagrms uncertainty on gmagmagstat.error;phot.mag;em.opt.Bfloatrbmagr blue frame magnitudemagphot.mag;em.opt.Rfloate_rbmagrms uncertainty on rbmagmagstat.error;phot.magfloatrrmagr red frame magnitudemagphot.mag;em.opt.Rfloate_rrmagrms uncertainty on rrmagmagstat.error;phot.magfloatHamag? H{alpha} magnitudemagphot.flux;em.line.Halphafloatnullablee_Hamag? rms uncertainty on Hamagmagstat.error;phot.mag;em.IR.Hfloatnullableimag? i magnitudemagphot.mag;em.opt.Ifloatnullablee_imag? rms uncertainty on imagmagstat.error;phot.mag;em.opt.IfloatnullableFieldField numbermeta.id;obs.fieldintObs.datebObservation date for blue (ugr) frametime.epoch;obscharObs.daterObservation date for red (rHai) frametime.epochcharNameShort VPHAS name (JHHMM+DDMM)meta.idcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/MNRAS/457/1988/table3Johnson-Kron-Cousins for the three white dwarfs in NGC 3532 (Clem et al. 2011, Cat. J/AJ/141/115)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameShort VPHAS name (JHHMM+DDMM)meta.idcharBmagJohnson B magnitudemagphot.mag;em.opt.Bfloate_Bmagrms uncertainty on Bmagmagstat.error;phot.mag;em.opt.BfloatVmagJohnson V magnitudemagphot.mag;em.opt.Vfloate_Vmagrms uncertainty on Vmagmagstat.error;phot.mag;em.opt.VfloatRcmagCousins R magnitudemagphot.mag;em.opt.Rfloate_Rcmagrms uncertainty on Rcmagmagstat.error;phot.mag;em.opt.RfloatIcmagCousins I magnitudemagphot.mag;em.opt.Ifloate_Icmagrms uncertainty on Icmagmagstat.error;phot.mag;em.opt.IfloatJ/MNRAS/457/1988/table4Physical parameters of the 17 white dwarfs confirmed via spectroscopic follow-upDistDistancepcpos.distance;pos.heliocentricintgMAGAbsolute g magnitudemagphys.magAbsfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameShort VPHAS name (JHHMM+DDMM)meta.idcharClusterCluster namemeta.id.parentcharS/NSignal-to-noise ratio measured at H{beta}stat.snrintTypeWhite dwarf typesrc.classcharn_Teff[a] Note on Teff (1)meta.notecharTeffEffective temperatureKphys.temperature.effectiveinte_Teffrms uncertainty on TeffKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggrms uncertainty on logglog(cm.s**-2)stat.errorfloatE_gMAGError on gMAG (upper value)magstat.error;stat.maxfloate_gMAGError on gMAG (lower value)magstat.errorfloatE(B-V)? Redenningmagphot.color.excessfloatnullablee_E(B-V)? rms uncertainty on E(B-V)magstat.errorfloatnullablee_Distrms uncertainty on Distpcstat.errorintMassWD masssolMassphys.massfloatE_MassError on Mass (upper value)solMassstat.error;stat.maxfloate_MassError on Mass (lower value)solMassstat.error;phys.massfloatn_tau[b] Note on tau (1)meta.notechartauWD ageGyrtime.agefloatE_tau? Error on tau (upper value)Gyrstat.error;stat.maxfloatnullablee_tau? Error on tau (lower value)Gyrstat.errorfloatnullabledtau? Fractional difference in cooling ages, between Montreal and BaSTI models (see Section 4.1 for details)phot.mag;arith.difffloatnullableJ/MNRAS/457/1988/table5*Physical parameters of the white dwarf progenitors for the five likely cluster membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameShort VPHAS name (JHHMM+DDMM)meta.idcharClusterCluster namemeta.id.parentcharMWWDMass of the white dwarf progenitorsolMassphys.massfloatE_MWWDError on MWWD (upper value)solMassstat.error;stat.maxfloate_MWWDError on MWWD (lower value)solMassstat.errorfloattprogAge of the progenitorGyrtime.agefloatE_tprogError on tprog (upper value)Gyrstat.error;stat.maxfloate_tprog? Error on tprog (lower value)Gyrstat.errorfloatnullablel_MprogBLimit flag on MprogBmeta.code.errorcharMprogBBatSI mass of the progenitorsolMassphys.massfloatE_MprogB? Error on MprogB (upper value)solMassstat.error;stat.maxfloatnullablee_MprogBError on MprogB (lower value)solMassstat.errorfloatl_MprogrLimit flag on Mprogrmeta.code.errorcharMprogrRotational mass of the progenitorsolMassphys.massfloatE_Mprogr? Error on Mprogr (upper value)solMassstat.error;stat.maxfloatnullablee_MprogrError on Mprogr (lower value)solMassstat.errorfloatJ/MNRAS/457/1988/tablea1g-band absolute magnitudes and colours of DA white dwarfs in the VPHAS+ Vega systemrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeffEffective temperatureKphys.temperature.effectiveintgMAG7.0Absolute g magnitude for logg=7.00magphys.magAbsfloat(u-g)7.0Absolute u-g colour index for logg=7.00magphot.colorfloat(g-r)7.0Absolute g-r colour index for logg=7.00magphot.colorfloat(r-i)7.0Absolute r-i colour index for logg=7.00magphot.colorfloat(r-Ha)7.0Absolute r-Ha colour index for logg=7.00magphot.colorfloatgMAG7.5Absolute g magnitude for logg=7.50magphys.magAbsfloat(u-g)7.5Absolute u-g colour index for logg=7.50magphot.colorfloat(g-r)7.5Absolute g-r colour index for logg=7.50magphot.colorfloat(r-i)7.5Absolute r-i colour index for logg=7.50magphot.colorfloat(r-Ha)7.5Absolute r-Ha colour index for logg=7.50magphot.colorfloatgMAG8.0Absolute g magnitude for logg=8.00magphys.magAbsfloat(u-g)8.0Absolute u-g colour index for logg=8.00magphot.colorfloat(g-r)8.0Absolute g-r colour index for logg=8.00magphot.colorfloat(r-i)8.0Absolute r-i colour index for logg=8.00magphot.colorfloat(r-Ha)8.0Absolute r-Ha colour index for logg=8.00magphot.colorfloatgMAG8.5Absolute g magnitude for logg=8.50magphys.magAbsfloat(u-g)8.5Absolute u-g colour index for logg=8.50magphot.colorfloat(g-r)8.5Absolute g-r colour index for logg=8.50magphot.colorfloat(r-i)8.5Absolute r-i colour index for logg=8.50magphot.colorfloat(r-Ha)8.5Absolute r-Ha colour index for logg=8.50magphot.colorfloatgMAG9.0Absolute g magnitude for logg=9.00magphys.magAbsfloat(u-g)9.0Absolute u-g colour index for logg=9.00magphot.colorfloat(g-r)9.0Absolute g-r colour index for logg=9.00magphot.colorfloat(r-i)9.0Absolute r-i colour index for logg=9.00magphot.colorfloat(r-Ha)9.0Absolute r-Ha colour index for logg=9.00magphot.colorfloatJ/MNRAS/457/1988/tablea2g-band absolute magnitudes and colours of DB white dwarfs in the VPHAS+ Vega systemrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeffEffective temperatureKphys.temperature.effectiveintgMAG7.0Absolute g magnitude for logg=7.00magphys.magAbsfloat(u-g)7.0Absolute u-g colour index for logg=7.00magphot.colorfloat(g-r)7.0Absolute g-r colour index for logg=7.00magphot.colorfloat(r-i)7.0Absolute r-i colour index for logg=7.00magphot.colorfloat(r-Ha)7.0Absolute r-Ha colour index for logg=7.00magphot.colorfloatgMAG7.5Absolute g magnitude for logg=7.50magphys.magAbsfloat(u-g)7.5Absolute u-g colour index for logg=7.50magphot.colorfloat(g-r)7.5Absolute g-r colour index for logg=7.50magphot.colorfloat(r-i)7.5Absolute r-i colour index for logg=7.50magphot.colorfloat(r-Ha)7.5Absolute r-Ha colour index for logg=7.50magphot.colorfloatgMAG8.0Absolute g magnitude for logg=8.00magphys.magAbsfloat(u-g)8.0Absolute u-g colour index for logg=8.00magphot.colorfloat(g-r)8.0Absolute g-r colour index for logg=8.00magphot.colorfloat(r-i)8.0Absolute r-i colour index for logg=8.00magphot.colorfloat(r-Ha)8.0Absolute r-Ha colour index for logg=8.00magphot.colorfloatgMAG8.5Absolute g magnitude for logg=8.50magphys.magAbsfloat(u-g)8.5Absolute u-g colour index for logg=8.50magphot.colorfloat(g-r)8.5Absolute g-r colour index for logg=8.50magphot.colorfloat(r-i)8.5Absolute r-i colour index for logg=8.50magphot.colorfloat(r-Ha)8.5Absolute r-Ha colour index for logg=8.50magphot.colorfloatgMAG9.0Absolute g magnitude for logg=9.00magphys.magAbsfloat(u-g)9.0Absolute u-g colour index for logg=9.00magphot.colorfloat(g-r)9.0Absolute g-r colour index for logg=9.00magphot.colorfloat(r-i)9.0Absolute r-i colour index for logg=9.00magphot.colorfloat(r-Ha)9.0Absolute r-Ha colour index for logg=9.00magphot.colorfloat