J/ApJ/657/1013ivo://CDS.VizieR/J/ApJ/657/1013doi:10.26093/cds/vizier.16571013CDSTremblay P.-E.Bergeron P.2017-10-18T08:23:58Z2009-03-07T16:48:55ZCDS support team

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

cds-question@unistra.frmultiple-starswhite-dwarf-starsinfrared-photometryWe review the available near- and mid-infrared photometry for white dwarfs obtained from the Two Micron All Sky Survey (2MASS) and by the Spitzer Space Telescope. Both data sets have recently been used to seek white dwarfs with infrared excesses due to the presence of unresolved companions or circumstellar disks, and also to derive the atmospheric parameters of cool white dwarfs. We first attempt to evaluate the reliability of the 2MASS photometry by comparing it with an independent set of published JHK CIT magnitudes for 160 cool white dwarf stars, and also by comparing the data with the predictions of detailed model atmosphere calculations. The possibility of using 2MASS to identify unresolved M dwarf companions or circumstellar disks is then discussed.2007ApJ...657.1013Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/657/1013CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)III/235 : Spectroscopically Identified White Dwarfs (McCook+, 2008)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/657/1013https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/657/1013http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/657/1013https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/657/1013https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/657/1013http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/657/1013GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/657/1013/table3 (Sample of white dwarfs with predicted NIR photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/657/1013/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/657/1013/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/657/1013/table3?GETtext/xml+votable180.050000true6.637962539.15119720.005555555555555556Cone search capability for table J/ApJ/657/1013/table4 (Sample of massive white dwarfs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/657/1013/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/657/1013/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/657/1013/table4?GETtext/xml+votable180.050000true8.89931671.88569440.005555555555555556Cone search capability for table J/ApJ/657/1013/table1 (Sample of cool white dwarfs with near-infrared photometry)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/657/1013/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/657/1013/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/657/1013/table1?GETtext/xml+votable180.050000true0.667-34.22766670.0055555555555555566/319 346 548 696 1077 1185 1287 1407 1848 2157 2364 2366 2644 2695 2808 2973 3213 3222 3661 4370 4455 4519 4566 4803 4947 5050 5065 5190 5384 5569 5636 5816 5946 6328 6442 6454 6458 6579 6616 6721 6935 7252 7267 7478 7498 7672 7686 7820 7902 8438 8683 8894 9102 9104 9109 9141 9165 9176 9391 9416 9424 9458 9796 9814 9840 9985 10126 10131 10173 10370 10378 10432 10451 10560 10935 10951 10992 11127 11131 11159 11193 11336 11370 11415 11621 11645 11689 12111 12714 12738 12747 13082 13085 13103 13249 13391 13652 14586 14865 15280 15335 15474 15736 16433 16697 16744 16785 16857 17009 17181 17415 17452 17625 17685 17733 17967 18002 18079 18086 18133 18139 18306 18368 18415 18548 18556 18560 18700 18701 18748 19042 19428 19434 19827 19920 19999 20100 20155 20203 20212 20334 20360 20371 21194 21479 21691 22149 22214 22224 22345 22638 22870 23036 23101 23174 23208 23333 23395 23457 23497 23501 23549 23591 23619 23795 24732 24748 24915 25276 25326 25407 25607 26168 26321 26369 26386 26471 26489 26740 26851 26929 27123 27145 27221 27538 27587 27603 27854 27902 27930 28028 28259 28271 28354 28460 28507 28559 29777 30093 30195 30415 30440 31172 31179 31290 31346 31518 31637 31677 31698 31702 31708 31868 31872 32156 32436 32634 33870 35790 35796 35957 36315 36489 36567 37473 37477 37890 38941 39113 40070 40623 42074 42459 43239 43537 44639 44971 44996 45110 45649 46406 48544 48724 491258.650015785639275e-20 1.7003137259100215e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/657/1013?format=asciiInfrareddefaultJ/ApJ/657/1013/table3Sample of white dwarfs with predicted NIR photometryrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf coordinate identificationmeta.id;meta.maincharTeffEffective temperature (1)Kphys.temperature.effectiveintu_TeffUncertainty flag on Teff (2)meta.code.error;phys.temperature.effectivecharlog(g)Log of the surface gravity (1)log(cm.s**-2)phys.gravityfloatu_log(g)Uncertainty flag on log(g) (2)meta.code.errorcharVmagThe V band magnitude (3)magphot.mag;em.opt.VfloatJmagPPredicted J band magnitudemagphot.mag;em.IR.JfloatHmagPPredicted H band magnitudemagphot.mag;em.IR.HfloatKsmagPPredicted K_S_ band magnitudemagphot.mag;em.IR.KfloatJmag2The 2MASS J band magnitudemagphot.mag;em.IR.Jfloate_Jmag2Uncertainty in Jmag2magstat.error;phot.mag;em.IR.JfloatHmag2The 2MASS H band magnitudemagphot.mag;em.IR.Hfloate_Hmag2Uncertainty in Hmag2magstat.error;phot.mag;em.IR.HfloatKsmag2The 2MASS K_S_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag2Uncertainty in Ksmag2magstat.error;phot.mag;em.IR.KfloatSimbadNameSimbad column added by the CDSmeta.idchar2MDetails from the 2MASS Point Source Catalog (II/246)meta.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/ApJ/657/1013/table4Sample of massive white dwarfsHmag2The 2MASS H band magnitudemagphot.mag;em.IR.HfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDWhite Dwarf coordinate identification (1)meta.id;meta.maincharTeffEffective temperature (2)Kphys.temperature.effectiveintMassMass in solar units (2)solMassphys.massfloatVmag? The V band magnitudemagphot.mag;em.opt.VfloatnullableJmagP? Predicted J band magnitudemagphot.mag;em.IR.JfloatnullableHmagP? Predicted H band magnitudemagphot.mag;em.IR.HfloatnullableKsmagP? Predicted K_S_ band magnitudemagphot.mag;em.IR.KfloatnullableJmag2The 2MASS J band magnitudemagphot.mag;em.IR.Jfloate_Jmag2Uncertainty in Jmag2magstat.error;phot.mag;em.IR.Jfloate_Hmag2? Uncertainty in Hmag2 (3)magstat.error;phot.mag;em.IR.HfloatnullableKsmag2The 2MASS K_S_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag2? Uncertainty in Ksmag2 (3)magstat.error;phot.mag;em.IR.Kfloatnullable2MDetails from the 2MASS Point Source Catalog (II/246)meta.ref.urlcharSimbadSimbad column added by the CDSchar_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/ApJ/657/1013/table1Sample of cool white dwarfs with near-infrared photometryWDWhite Dwarf coordinate identificationmeta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameWhite Dwarf namemeta.idcharJmagCThe CIT J band magnitudemagphot.mag;em.IR.Jfloatf_JmagC[: ] Uncertainty flag on JmagC (1)meta.codecharHmagCThe CIT H band magnitudemagphot.mag;em.IR.Hfloatf_HmagC[: ] Uncertainty flag on HmagC (1)meta.codecharKmagC? The CIT K band magnitudemagphot.mag;em.IR.Kfloatnullablef_KmagC[: ] Uncertainty flag on KmagC (1)meta.codecharJmag2The 2MASS J band magnitudemagphot.mag;em.IR.Jfloate_Jmag2? Uncertainty in Jmag2 (2)magstat.error;phot.mag;em.IR.JfloatnullableHmag2The 2MASS H band magnitudemagphot.mag;em.IR.Hfloate_Hmag2? Uncertainty in Hmag2 (2)magstat.error;phot.mag;em.IR.HfloatnullableKsmag2The 2MASS K_S_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag2? Uncertainty in Ksmag2 (2)magstat.error;phot.mag;em.IR.Kfloatnullable2MDetails from the 2MASS Point Source Catalog (II/246)meta.ref.urlcharSimbadSimbad column added by the CDSchar_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.main