J/AJ/154/32ivo://CDS.VizieR/J/AJ/154/32doi:10.26093/cds/vizier.51540032CDSSubasavage J.P.Jao W.-C.Henry T.J.Harris H.C.Dahn C.C.,Bergeron P.Dufour P.Dunlap B.H.Barlow B.N.Ianna P.A.Lepine S.,Margheim S.J.2024-10-11T20:09:51Z2017-10-06T09:47:40ZCDS support team

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

cds-question@unistra.frwhite-dwarf-starsvisible-astronomytrigonometric-parallaxinfrared-photometrybroad-band-photometryastrometrystellar-spectral-typesproper-motionsstellar-masseseffective-temperatureWe present 114 trigonometric parallaxes for 107 nearby white dwarf (WD) systems from both the Cerro Tololo Inter-American Observatory Parallax Investigation (CTIOPI) and the U. S. Naval Observatory Flagstaff Station (NOFS) parallax programs. Of these, 76 parallaxes for 69 systems were measured by the CTIOPI program and 38 parallaxes for as many systems were measured by the NOFS program. A total of 50 systems are confirmed to be within the 25-pc horizon of interest. Coupled with a spectroscopic confirmation of a common proper-motion companion to a Hipparcos star within 25pc as well as confirmation parallax determinations for two WD systems included in the recently released Tycho Gaia Astrometric Solution catalog, we add 53 new systems to the 25-pc WD sample-a 42% increase. Our sample presented here includes four strong candidate halo systems, a new metal-rich DAZ WD, a confirmation of a recently discovered nearby short-period (P=2.85hr) double degenerate, a WD with a new astrometric perturbation (long period, unconstrained with our data), and a new triple system where the WD companion main-sequence star has an astrometric perturbation (P~1.6year).2017AJ....154...32Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/32CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/337 : Gaia DR1 (Gaia Collaboration, 2016)V/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)I/238 : Yale Trigonometric Parallaxes, Fourth Edition (van Altena+ 1995)I/98 : NLTT Catalogue (Luyten, 1979)J/MNRAS/449/3966 : Ultracool white dwarfs (Gianninas+, 2015)J/ApJS/219/19 : Census of SUPERBLINK nearby white dwarfs (Limoges+, 2015)J/AJ/143/103 : New white dwarfs (Sayres+, 2012)J/ApJ/743/138 : Spectroscopic survey of bright WDs (Gianninas+, 2011)J/ApJ/663/1291 : DZ stars in SDSS DR4 (Dufour+, 2007)J/AJ/134/252 : New nearby WD systems (Subasavage+, 2007; Pap. XIX)J/ApJ/643/402 : Cool WDs in the solar neighborhood (Kawka+, 2006)J/AJ/125/1598 : New northern high proper motion stars (Lepine+, 2003)J/other/Sci/292.698 : Candidate halo dark matter (Oppenheimer+, 2001)J/AJ/103/638 : USNO Photographic Parallaxes. I. (Monet+, 1992)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/32https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/32http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/32https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/154/32https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/154/32http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/154/32GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/154/32/table1 (Photometric results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/32/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/32/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/32/table1?GETtext/xml+votable180.050000true0.544685-43.16538720.005555555555555556Cone search capability for table J/AJ/154/32/table2 (Cerro Tololo Inter-American Observatory Parallax Investigation (CTIOPI) astrometric results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/32/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/32/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/32/table2?GETtext/xml+votable180.050000true0.5447083-43.16544440.005555555555555556Cone search capability for table J/AJ/154/32/table3 (U. S. Naval Observatory Flagstaff Station (NOFS) astrometric results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/32/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/32/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/32/table3?GETtext/xml+votable180.050000true2.843583342.67802780.0055555555555555566/897 2113 2364 2733 3682 5261 6458 6619 7652 7740 8480 13295 13550 13652 15280 15462 16433 16697 17568 17733 18139 18155 18398 18556 18902 19135 20404 21479 21691 22214 22638 22870 22936 23036 23174 23235 23333 24748 24778 24795 24882 24915 25084 25250 25634 25792 26396 29413 29505 29855 31549 31956 31973 33011 33015 33198 33322 33384 34864 35059 35490 35647 35957 35978 36014 36416 37464 37473 37523 37890 38188 38381 38803 39421 39534-39535 40070 40164 40623 40747 40959 41099 42070 42760 43537 43805 44630 44639 45110 45173 45177 45386 45506 46031 46709 46777 47148 47487 47907 48621 487628.650015785639275e-20 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/154/32?format=asciiOpticalInfrareddefaultJ/AJ/154/32/table1Photometric resultsNn[9/38]? Number of nights (4)meta.numberintnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf (WD) name (HHMM+DDd) (1)meta.id;meta.maincharm_WD[AB] White dwarf component (A or B)meta.code.multipcharONameOther name (1)meta.idcharHRDisplay the Hertzsprung-Russell diagram data (figure3)meta.ref.urlcharPDisplay the physical parameters (table4)meta.ref.urlcharNOFSIndicates NOFS astrometry (table3)meta.numberintnullableSOARNumber of fluxes from SOAR+Goodman (figure1)meta.numberintnullableSpSpectrameta.ref.urlcharCTIOPIIndicates CTIOPI astrometry (table2)meta.ref.urlcharnullableBmag[12.34/51.45]? Johnson B band magnitude (B_J_)magphot.mag;em.opt.Bfloatnullableo_Bmag[1/6]? Number of observations in Bmag (N_B_)meta.numberintnullableVmag[11/18.1]? Johnson V band magnitude (V_J_)magphot.mag;em.opt.Vfloatnullableu_Vmag[:] Uncertain flag in Vmagmeta.code.errorcharo_Vmag[1/6]? Number of observations in Vmag (N_V_)meta.numberintnullableRmag[11.15/18]? Kron-Cousins R band magnitude (R_KC_)magphot.mag;em.opt.Rfloatnullableu_Rmag[:] Uncertain flag in Rmagmeta.code.errorcharo_Rmag[1/5]? Number of observations in Rmag (N_R_)meta.numberintnullableImag[10.5/18.4]? Kron-Cousins I band magnitude (I_KC_)magphot.mag;em.opt.Ifloatnullableu_Imag[:] Uncertain flag in Imagmeta.code.errorcharo_Imag[1/6]? Number of observations in Imag (N_I_)meta.numberintnullableFlt[VRI] Parallax filter {pi} (V, R, or I) (2)pos.parallax;instr.filtercharsigma[0/0.018]? The PI star (parallax target) photometric standard deviation ({sigma}) in parallax filter (3)magstat.stdev;pos.parallax.phot;instr.filterfloatnullableNf[44/235]? Number of frames (4)meta.numberintnullableJmag[9.12/17.1]? 2MASS J band magnitude (J_2M_)magphot.mag;em.IR.Jfloatnullablee_Jmag[0.02/0.1]? Error in Jmagmagstat.error;phot.mag;em.IR.JfloatnullableHmag[8.48/16.55]? 2MASS H band magnitude (H_2M_)magphot.mag;em.IR.Hfloatnullablee_Hmag[0.02/0.2]? Error in Hmagmagstat.error;phot.mag;em.IR.HfloatnullableKmag[8.19/16.2]? 2MASS Ks band magnitude (Ks_2M_)magphot.mag;em.IR.Kfloatnullablee_Kmag[0.02/0.21]? Error in Kmagmagstat.error;phot.mag;em.IR.KfloatnullableNoteNotes (5)meta.notecharPapXIXIndicates a star in the paper XIX (Subasavage et al. 2007, Cat. J/AJ/134/252) within 1.5''meta.ref.urlintnullable2MDisplay the 2MASS data (Cutri et al. 2003, Cat. II/246)meta.ref.urlcharSimbadNameSimbad column added by the CDSmeta.idchar_RAPosition from Simbad database (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad database (declination part)degpos.eq.dec;meta.mainJ/AJ/154/32/table2Cerro Tololo Inter-American Observatory Parallax Investigation (CTIOPI) astrometric resultsWDWhite Dwarf (WD) name (HHMM+DDd)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_WD[AB] White dwarf component (A or B)meta.code.multipcharONameOther namemeta.idcharHRDisplay the Hertzsprung-Russell diagram data (figure3)meta.ref.urlcharPDisplay the physical parameters (table4)meta.ref.urlcharPhotDisplay the photometric results (table1)meta.ref.urlcharNOFSIndicates NOFS astrometry (table3)meta.numberintnullableRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainFlt[VRI] Filter used for parallax observation (V, R, or I)instr.setup;instr.filtercharNs[3/17] Number of seasons the PI star was observed (N_sea_)meta.numberintf_Ns[cgs] Flag on Ns (c, g, or s) (1)meta.codecharNfr[44/235] Total number of frames used in the parallax reduction (N_frm_)meta.numberintYear0[1999.64/2010.52] Starting time of coverage of the parallax datayrtime.epochfloatYear1[2007.6/2016.06] Ending time of coverage of the parallax datayrtime.epochfloatNyr[2.18/16.19] Number of years during the coveragemeta.numberfloatNref[5/22] Number of reference stars used (N_ref_)meta.numberintRplx[16.4/230.9] Relative trigonometric parallax {pi}(rel)maspos.parallax.trigfloate_Rplx[0.54/2.67] Error in Rplxmasstat.errorfloatpcorr[0.28/2.37] Correction to absolute parallax {pi}(corr)masarith.factorfloate_pcorr[0.02/0.39] Error in pcorrmasstat.errorfloatAplx[17.22/232.12] Absolute trigonometric parallax {pi}(abs)maspos.parallax.trigfloate_Aplx[0.54/2.67] Error in Aplxmasstat.errorfloatpm[80.1/2970.6] Proper motion {mu} (2)mas/yrpos.pmfloate_pm[0.1/1.7] Error in pmmas/yrstat.errorfloatPA[17.9/345] Position Angle of proper motion (2)degpos.pm;pos.posAngfloate_PA[0.01/0.89] Error in PAdegstat.errorfloatVtan[4.9/255] Tangential velocity (V_tan_) (3)km/sphys.veloc.transversefloatNoteNotes (a, b, c, and/or d) (4)meta.notecharJ/AJ/154/32/table3U. S. Naval Observatory Flagstaff Station (NOFS) astrometric resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf (WD) name (HHMM+DDd)meta.id;meta.maincharHRDisplay the Hertzsprung-Russell diagram (figure3)meta.ref.urlcharPDisplay the physical parameters (table4)meta.ref.urlcharPhotDisplay the photometric results (table1)meta.ref.urlcharCTIOPIIndicates CTIOPI astrometry (table2)meta.numberintnullableRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainFltFilter used for parallax observation (A2-1, I-2, ST-R, or Z-2) (1)instr.setup;instr.filtercharNn[22/173] Number of nights the PI star was observed (N_ngt_)meta.numberintNfr[24/285] Total number of frames in the astrometric reduction (N_frm_)meta.numberintYear0[1990.78/2013.2] Starting time of coverage of the parallax datayrtime.epochfloatYear1[1995.41/2016.43] Ending time of coverage of the parallax datayrtime.epochfloatNyr[3.01/10.21] Number of years during the coveragemeta.numberfloatNref[4/47] Number of reference stars (N_ref_)meta.numberintRplx[39.43/108.76] Relative trigonometric parallax {pi}(rel)maspos.parallax.trigfloate_Rplx[0.22/1.34] Error in Rplxmasstat.errorfloatpcorr[0.45/1.77] Correction to absolute parallax {pi}(corr)masarith.factorfloate_pcorr[0.03/0.58] Error in pcorrmasstat.errorfloatAplx[40.15/110.27] Absolute trigonometric parallax {pi}(abs)maspos.parallax.trigfloate_Aplx[0.23/1.34] Error in Aplxmasstat.errorfloatpm[99.6/1915.2] Relative proper motion {mu} (2)mas/yrpos.pmfloate_pm[0.1/0.7] Error in pmmas/yrstat.errorfloatPA[47.4/348.4] Relative Position Angle of proper motion (2)degpos.pm;pos.posAngfloate_PA[0.01/0.14] Error in PAdegstat.errorfloatVtan[10.5/159.2] Tangential velocity (V_tan_) (2)km/sphys.veloc.transversefloatCCDCCD camera used for parallax observation (EEV24, TI800, or Tek2K) (3)meta.id;instrcharNoteNotes (a or b) (4)meta.notecharJ/AJ/154/32/table4Physical parametersSimbadNameSimbad column added by the CDSmeta.idcharm_WD[AB] White dwarf component (A or B)meta.code.multipcharMass[0.21/1.1]? Mass (M/M_{Sun}_)solMassphys.massfloatnullablee_Mass[0.01/0.11]? Error in MasssolMassstat.error;phys.massfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf (WD) name (HHMM+DDd)meta.id;meta.maincharprimaryPhotDisplay the photometric results (table1)meta.ref.urlcharNOFSIndicates NOFS astrometry (table3)meta.numberintnullableCTIOPIIndicates CTIOPI astrometry (table2)meta.numberintnullable<plx>[17/233] Adopted weighted mean trigonometric parallax (1)maspos.parallax.trig;stat.meanfloatr_<plx>References for <plx>; in refs.dat filemeta.ref;pos.framechare_<plx>[0.19/2.67] Error in <plx>masstat.error;pos.parallaxfloato_<plx>[1/5] Number of <plx> valuesmeta.numberintTeff[3490/23360]? Effective temperature (T_eff_)Kphys.temperature.effectiveintnullablee_Teff[20/7640]? Error in TeffKstat.error;phys.temperature.effectiveintnullablelogg[7.02/8.81]? Surface gravitylog(cm.s**-1)phys.gravityfloatnullablee_logg[0.01/0.14]? Error in logglog(cm.s**-1)stat.errorfloatnullableSpTSpectral typesrc.spTypecharr_SpTReference for SpT; in refs.dat filemeta.ref;pos.framecharModelAtmospheric model used (He, He(+C), He(+Ca), He(+H), or He(+H,Ca), or H)obs.atmos.extinction;meta.modelledcharVMag[10.5/16.66] Absolute V band magnitude (M_V_)magphys.magAbs;em.opt.Vfloate_VMag[0.02/0.21] Error in VMagmagstat.error;phot.mag;em.opt.VfloatLum[-4.63/-1.34]? Luminosity (logL/L_{Sun}_)solLumphys.luminosityfloatnullablee_Lum[0.01/0.49]? Error in LumsolLumstat.errorfloatnullableAge[0.03/8.6]? WD age (3)Gyrtime.agefloatnullablee_Age[0.01/0.84]? Error in ageGyrstat.error;time.agefloatnullableNoteNotes (4)meta.notecharJ/AJ/154/32/figure1Southern Astrophysical Research Telescope (SOAR)+Goodman confirmation spectra for newly discovered nearby white dwarfsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf (WD) name (HHMM+DDd)meta.id;meta.maincharlambda[3700.02/6099.92] Wavelength {lambda} (in {AA})0.1nmem.wlfloatFlux[0.24/2.08] Normalized flux (F_{lambda}_)phot.flux;arith.ratiodoubleJ/AJ/154/32/figure3Data of the Hertzsprung-Russell diagram for the objects with parallaxes presented hereFig4Identification of the model fit to the SED (figure4)meta.bib.figcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf (WD) name (HHMM+DDd)meta.id;meta.maincharprimarym_WD[AB] White dwarf component (A or B)meta.code.multipchar<plx>[17.2/232.4] Weighted mean trigonometric parallaxmaspos.parallax.trig;stat.meanfloatr_<plx>References for <plx>; in refs.dat filemeta.ref;pos.framechare_<plx>[0.19/2.67] Error in <plx>masstat.error;pos.parallaxfloatVMag[10.5/16.63] Absolute V band magnitudemagphys.magAbs;em.opt.Vfloate_VMag[0.03/0.21] Error in VMagmagstat.error;phot.mag;em.opt.VfloatV-I[-0.29/1.92] V-I color indexmagphot.color;em.opt.V;em.opt.Ifloate_V-I[0.04/0.07] Error in V-Imagstat.error;phot.color;em.opt.VfloatJ/AJ/154/32/figure7Component radial velocity curves for WD 1242-105 as a function of timerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTime[0/13227] Relative time of observation (1)stime.epochdoubleV1RV[-157.71/208.69] V1 Radial Velocitykm/sphys.veloc;pos.heliocentricfloate_V1RV[4.28/12.5] Error in V1RVkm/sstat.errorfloatV2RV[-81.16/180.42] V2 Radial Velocitykm/sphys.veloc;pos.heliocentricfloate_V2RV[2.63/10.26] Error in V2RVkm/sstat.errorfloatJ/AJ/154/32/refsReferencesAutAuthor's namemeta.bib.authorcharComCommentmeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRefReference codemeta.noteintBibCodeBibliographic Codemeta.bib.bibcodechar