J/ApJS/232/23ivo://CDS.VizieR/J/ApJS/232/23doi:10.26093/cds/vizier.22320023CDSHermes J.J.Gansicke B.T.Kawaler S.D.Greiss S.Tremblay P.-E.,Gentile Fusillo N.P.Raddi R.Fanale S.M.Bell K.J.Dennihy E.,Fuchs J.T.Dunlap B.H.Clemens J.C.Montgomery M.H.Winget D.E.,Chote P.Marsh T.R.Redfield S.2018-03-12T08:40:52Z2017-12-15T14:27:46ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsvisible-astronomysloan-photometryspectroscopystellar-massesWe present photometry and spectroscopy for 27 pulsating hydrogen-atmosphere white dwarfs (DAVs; a.k.a. ZZ Ceti stars) observed by the Kepler space telescope up to K2 Campaign 8, an extensive compilation of observations with unprecedented duration (>75 days) and duty cycle (>90%). The space-based photometry reveals pulsation properties previously inaccessible to ground- based observations. We observe a sharp dichotomy in oscillation mode line widths at roughly 800s, such that white dwarf pulsations with periods exceeding 800s have substantially broader mode line widths, more reminiscent of a damped harmonic oscillator than a heat-driven pulsator. Extended Kepler coverage also permits extensive mode identification: we identify the spherical degree of 87 out of 201 unique radial orders, providing direct constraints of the rotation period for 20 of these 27 DAVs, more than doubling the number of white dwarfs with rotation periods determined via asteroseismology. We also obtain spectroscopy from 4m-class telescopes for all DAVs with Kepler photometry. Using these homogeneously analyzed spectra, we estimate the overall mass of all 27 DAVs, which allows us to measure white dwarf rotation as a function of mass, constraining the endpoints of angular momentum in low- and intermediate-mass stars. We find that 0.51-0.73M{sun} white dwarfs, which evolved from 1.7-3.0M{sun} ZAMS progenitors, have a mean rotation period of 35hr with a standard deviation of 28hr, with notable exceptions for higher-mass white dwarfs.2017ApJS..232...23Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/232/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/133 : Kepler Input Catalog (Kepler Mission Team, 2009)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)II/350 : VLT Survey Telescope ATLAS (Shanks+, 2015)II/336 : AAVSO Photometric All Sky Survey (APASS) DR9 (Henden+, 2016)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)J/ApJS/156/47 : DA WDs from the Palomar Green Survey (Liebert+, 2005)J/MNRAS/409/1470 : Kepler compact pulsator candidates (Ostensen+, 2010)J/AJ/142/112 : KIC photometric calibration (Brown+, 2011)J/ApJ/743/138 : Spectroscopic survey of bright WDs (Gianninas+, 2011)J/ApJ/730/128 : Spectroscopy of DA WD from the SDSS-DR4 (Tremblay+, 2011)J/MNRAS/417/1210 : DA-white dwarfs from SDSS and UKIDSS (Girven+, 2011)J/AJ/144/24 : The Kepler-INT survey (KIS) (Greiss+, 2012)J/ApJS/204/5 : SDSS DR7 white dwarf catalog (Kleinman+, 2013)J/MNRAS/448/2260 : White dwarf candidates in SDSS DR10 (Gentile Fusillo+, 2015)J/MNRAS/461/4059 : The pulsations of G 207-9 and LP 133-144 (Bognar+, 2016)J/MNRAS/458/3808 : DR9-12 SDSS WDMS binaries (Rebassa-Mansergas+, 2016)J/MNRAS/469/621 : VST ATLAS WD candidates cat. (Gentile Fusillo+, 2017)J/ApJ/835/172 : Kepler asteroseismic LEGACY sample. I. Oscillations (Lund+,http://k2wd.org/ : Kepler and K2 obs. of white dwarf stars home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/232/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/232/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/232/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/232/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/232/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/232/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/232/23/targets (Pulsating DA white dwarf properties, short-cadence photometry and follow-up spectroscopy data (tables 1-3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/232/23/targets?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/232/23/targets?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/232/23/targets?GETtext/xml+votable180.050000true289.329987539.455305560.0055555555555555566/273 4285 4330 4351 4629 4687 4693 14928 14961 15140 15156 17331 18007 18010 18035 18130 18160 18582 25711 26956 27007 27096 27693 48096https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/232/23?format=asciiOpticaldefaultJ/ApJS/232/23/table5Pulsation information from linear least-squares (LLS; Section 3) and Lorentzian (Lor.; Section 5) fits for the first 27 DAVs observed by Kepler and K2recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDThe KIC/EPIC identifiermeta.id;meta.mainlongModeModemeta.code;src.varLLS-Per[107.6/1769.1]? Linear Least-Squares periodspos.distance;time.perioddoublenullablee_LLS-Per[0.00004/0.06]? Uncertainty in LLS-Persstat.errordoublenullableLLS-Freq[565.2/9286.3]? Linear Least-Squares frequencyuHzpos.distance;em.freqdoublenullablee_LLS-Freq[0.0006/0.05]? Uncertainty in LLS-FrequHzstat.errordoublenullableLLS-Amp[0.09/24.2]? Linear Least-Squares amplitude (1)src.var.amplitudefloatnullablee_LLS-Amp[0.02/0.5]? Uncertainty in LLS-Amp (1)stat.errorfloatnullablePhase? Phaseradtime.phasefloatnullablee_Phase[0.001/0.06]? Uncertainty in Phaseradstat.error;time.phasefloatnullableLor-Per[107.6/1769.1]? Lorentzian periodstime.perioddoublenullablee_Lor-Per[0.0005/15]? Uncertainty in Lor-Persstat.errordoublenullableHWHM[0.02/9.3]? Half-Width at Half-Maximum of Lorentzian fituHzsrc.var.amplitudefloatnullableLor-Amp[0.01/635.4]? Lorentzian amplitude; in units of (parts per thousand)^2^src.var.amplitudefloatnullableSplit[1.3/139.3]? Splitting frequencyuHzem.freqdoublenullablef_Split[h?] h=indicates a harmonicmeta.codecharlSpherical degreestat.fit.paramcharmAzimuthal orderstat.fit.paramcharJ/ApJS/232/23/targetsPulsating DA white dwarf properties, short-cadence photometry and follow-up spectroscopy data (tables 1-3)SimbadNameSimbad column added by the CDSmeta.idcharRef2? Publication code (6)meta.ref;pos.frameintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNpDisplay the pulsation information for this white dwarf (table 5)meta.ref.urlintnullableIDThe KIC/EPIC identifiermeta.id;meta.mainlongprimaryRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainANameAlternate identifiermeta.idchargmag[13/19] The g band apparent magnitude (1)magphot.mag;em.opt.Bfloatu-g[0.3/0.7]? The (u-g) AB color indexmagphot.color;em.opt.U;em.opt.Bfloatnullableg-r[-0.3/-0.01]? The (g-r) AB color indexmagphot.color;em.opt.B;em.opt.RfloatnullableB-R[0.02/0.1]? The (B-R) AB color indexmagphot.color;em.opt.B;em.opt.RfloatnullableR-I[0.03]? The (R-I) AB color indexmagphot.color;em.opt.R;em.opt.IfloatnullableCatSource catalog (2)meta.id;meta.tablecharK2K2 fieldobs.fieldcharPropGO proposal identifiermeta.id;obscharSelSelection methodmeta.code;obscharRef? Discovery announcement code (3)meta.codeintnullableKpmag[13/19] Kepler magnitudemagphot.mag;em.optfloatRel[8/25]? Data release identifiermeta.softwareintnullableCCDCCD channelmeta.id;instrintAp[1/93] Final fixed aperature sizepixinstr.fovintTFracTotal fraction of flux contained in aperture that belongs to the target.statfloatT0Observation date (BJD_TDB_-2454833.0)dtime.epochdoubleDur[8.9/98] Durationdtime.durationfloatDCDuty cycle%stat.fit.paramfloatRes[0.05/0.7] ResolutionuHzpos.angResolutionfloat1FAPThe 1% False Alarm Probability (4)stat.fit.goodnessfloat0.1FAPThe 0.1% False Alarm Probability (4)stat.fit.goodnessfloat<5A>[0.1/2.7] Five times average amplitude (5)src.var.amplitudefloatWMP[141/1205] Weighted mean periodstime.period;stat.meanfloatf_ID[d] Flag on ID (7)meta.codecharTelFacility that obtained the datameta.id;instr.telcharDateUT date of the observationtime.epoch;obsnullableExpNumber of exposures times the exposure timemeta.numbercharSeeing[0.7/2.6] Seeingarcsecinstr.obsty.seeingfloatAir[1/1.6] Average airmassobs.airMassfloatS/N[50/210] Signal-to-Noise (8)stat.snrintTeff-1D[10890/13620] Effective temperature from 1D modelKphys.temperature.effectiveinte_Teff-1D[140/380] Uncertainty in Teff-1DKstat.errorintlogg-1D[7.7/8.5] log surface gravity from 1D modellog(cm.s**-2)phys.gravityfloate_logg-1D[0.04/0.08] Uncertainty in logg-1Dlog(cm.s**-2)stat.errorfloatTeff-3D[10600/13590] Effective temperature from 3D modelKphys.temperature.effectiveintlogg-3D[7.7/8.5] log surface gravity from 3D modellog(cm.s**-2)phys.gravityfloatMass[0.4/0.9] White dwarf masssolMassphys.massfloatCCatDisplay data from Gentile Fusillo+, 2015, J/MNRAS/448/2260; Greiss+, 2012, J/AJ/144/24 and the VLT Survey Telescope ATLAS within 1"meta.ref.urlintnullableKCatDisplay data from the KIC (V/133) or the K2 EPIC catalog (IV/34) within 1"meta.ref.urlcharSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlchar