J/AJ/154/118ivo://CDS.VizieR/J/AJ/154/118doi:10.26093/cds/vizier.51540118CDSSkinner J.N.Morgan D.P.West A.A.Lepine S.Thorstensen J.R.2018-08-23T06:48:01Z2018-06-12T13:40:46ZCDS support team

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

cds-question@unistra.frmultiple-starswhite-dwarf-starsdwarf-starsm-starsproper-motionsultraviolet-photometryinfrared-photometryvisible-astronomyphotometrystellar-spectral-typesradial-velocitystellar-distanceWe present an activity and kinematic analysis of high proper motion white dwarf-M dwarf binaries (WD+dMs) found in the SUPERBLINK survey, 178 of which are new identifications. To identify WD+dMs, we developed a UV-optical-IR color criterion and conducted a spectroscopic survey to confirm each candidate binary. For the newly identified systems, we fit the two components using model white dwarf spectra and M dwarf template spectra to determine physical parameters. We use H{alpha} chromospheric emission to examine the magnetic activity of the M dwarf in each system, and investigate how its activity is affected by the presence of a white dwarf companion. We find that the fraction of WD+dM binaries with active M dwarfs is significantly higher than their single M dwarf counterparts at early and mid-spectral types. We corroborate previous studies that find high activity fractions at both close and intermediate separations. At more distant separations, the binary fraction appears to approach the activity fraction for single M dwarfs. Using derived radial velocities and the proper motions, we calculate 3D space velocities for the WD+dMs in SUPERBLINK. For the entire SUPERBLINK WD+dMs, we find a large vertical velocity dispersion, indicating a dynamically hotter population compared to high proper motion samples of single M dwarfs. We compare the kinematics for systems with active M dwarfs and those with inactive M dwarfs, and find signatures of asymmetric drift in the inactive sample, indicating that they are drawn from an older population.2017AJ....154..118Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/154/118CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/298 : LSPM-North Catalog (Lepine+ 2005)J/AJ/124/1190 : Northern high proper motion stars in DSS (Lepine+, 2002)J/AJ/125/2621 : SDSS WD-M binary parameters (Raymond+, 2003)J/ApJ/586/1356 : White dwarfs with cool companions (Wachter+, 2003)J/AJ/129/2428 : M dwarf-white dwarf binary systems (Silvestri+, 2005)J/ApJS/161/394 : Low-luminosity companions to white dwarfs (Farihi+, 2005)J/AJ/134/26 : Binaries with white dwarf in 2MASS (Hoard+, 2007)J/AJ/135/2177 : High proper motion stars in the DSS. IV. (Lepine, 2008)J/A+A/496/191 : Spectral analysis of 636 SDSS WD-M binaries (Heller+, 2009)J/MNRAS/402/620 : SDSS WD main-sequence binaries (Rebassa-Mansergas+, 2010)J/MNRAS/409/1470 : Kepler compact pulsator candidates (Ostensen+, 2010)J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)J/AJ/144/93 : Close white dwarf + M dwarf binaries (WD+dM) (Morgan+, 2012)J/AJ/145/102 : Spectroscopy of bright M dwarfs in the northern skyJ/AJ/145/136 : Astrometry and photometry of nearby white dwarfsJ/A+A/570/A107 : WDMS from LAMOST DR1 (Ren+, 2014)J/MNRAS/445/1331 : White-dwarf + main-sequence binaries in SDSS DR9 (Li+, 2014)J/ApJS/219/19 : Census of nearby white dwarfs from SUPERBLINKhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/154/118https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/154/118http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/154/118https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/154/118https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/154/118http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/154/118GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/154/118/table1 (Astrometric and Photometric Properties of the WD+dMs in the SUPERBLINK Proper Motion Survey)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/154/118/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/154/118/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/154/118/table1?GETtext/xml+votable180.050000true0.2742311135.461108890.0055555555555555566/1 26 328 329 521 527 560 685 722 781 788 909 969 997 1071 1511 1681 1716 1910 2023 2052 2709 2744 3393 3542 3567 3801 4104 4161 4166 4179 4245 4249 4298 4326 4358 4382 4413 4414 4440 4455 4458 4520 4530 4545 4630 4698 4704 4712 4810 4817 4871 4894 4919 5025 5105 5148 5178 5187 5197 5201 5207 5248 5250 5253 5274 5301 5326 5334 5359 5360 5367 5384 5388 5433 5434 5475 5484 5511 5537 5541 5649 5653 5686 5711 5741 5757 5871 5891 5946 6103 6141 6219 6372 6416 6441 6530 6575 6632 6635 6648 6719 6732 6913 6946 7006 7010 7116 7152 7231 7241 7349 7352 7361 7382 7396 7474 7528 7536 7555 7566 7717 7770 7912 8152 8169 8193 8211 8225 8237 8276 8331 8432 8434 8441 8506 8516 8530 8565 8567 8573 8589 8669 8695 8710 8740 8760 8768 8782 8797 8815 8839 8845 8888 8891 8897 8917 8930 9012 9040 9081 9173 9187 9208 9259 9297 9306 9328 9350 9370 9426 9427 9444 9465 9526 9530 9592 9670 9732 9771 9846 9857 9891 9904 9910 9937 9962 9974 10020 10090 10194 10199 10223 10232 10234 10312 10362 10386 10391 10393 10507 10560 10579 10582 10696 10735 10765 10776 10797 10844 10884 10926 10992 10999 11006 11022 11087 11109 11116 11139 11205 11213 11223 11278 11289 11331 11416 11421 11422 11434 11445 11447 11455 11484 11819 11883 11908 12526 12746 12779 13118 13347 13437 13584 13777 13889 14998 15075 15090 15156 16730 17137 17228 17249 17293 17296 17416 17495 17507 17510 17515 17517 17549 17582 17641 17717 17750 17765 17770 17807 17811 17815 17816 17998 18025 18030 18070 18072 18076 18077 18086 18220 18365 18413 18537 18618 18687 18786 18787 18853 19027 19028 19038 19043 19053 19086 19100 19122 19131 19150 19184 19334 19371 19413 19426 19521 19525 19537 19549 19610 19638 19754 19779 20030 20036 20140 20168 20212 20328 20442 21201 21858 21959 22011 22534 22680 23105 23157 23168 23920 24072 24249 24987 25052 25207 25291 25304 25313 25329 25341 25451 25574 25642 25650 25655 25688 25767 25855 25924 25935 25949 26042 26049 26064 26094 26102 26158 26170 26174 26195 26203 26205 26224 26255 26286 26333 26376 26391 26456 26464 26466 26468 26473 26475 26494 26527 26536 26556 26567 26746 26966 26994 27007 27047 27073 27108 27135 27218 27248 27295 27332 27341 27350 27397 27461 27485 27504 27543 27591 27641 27694 27778 27818 27844 27900 27933 28006 28009 28019 28034 28067 28121 28256 28286 28370 28407 28411 28495 28496 28513 28531 28550 28562 28570 28579 28595 28624 28667 29796 30738 30987 31163 31324 31347 31354 31451 31532 31608 31624 31648 31672 31701 31702 31711 31899 31986 32313 32348 32377 32480 32481 32494 32501 36510 36577 36861 36862 40287 40564 40831 44665 44764 49011 491488.650015785639275e-20 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/154/118?format=asciiUVOpticalInfrareddefaultJ/AJ/154/118/table33D Space Velocities for SUPERBLINK WD+dMsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPMSUPERBLINK identifier (PM IHHMMm+DDMMW) (G1)meta.id;meta.maincharUVel[-690.83/385.93] System heliocentric space velocity component Ukm/spos.cartesian.x;pos.heliocentricfloate_UVel[0.82/186.73] Uncertainty in UVelkm/sstat.errorfloatVVel[-627.83/425.48] System heliocentric space velocity component Vkm/spos.cartesian.y;pos.heliocentricfloate_VVel[2.05/134.23] Uncertainty in VVelkm/sstat.errorfloatWVel[-436.28/477.82] System heliocentric space velocity component Wkm/spos.cartesian.z;pos.heliocentricfloate_WVel[1.43/382.27] Uncertainty in WVelkm/sstat.errorfloatJ/AJ/154/118/table1Astrometric and Photometric Properties of the WD+dMs in the SUPERBLINK Proper Motion SurveyrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPMSUPERBLINK identifier (PM IHHMMm+DDMMW) (G1)meta.id;meta.maincharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainpmRA[-338/406] Proper motion along RA (pmRA*cosDE)mas/yrpos.pm;pos.eq.rafloatpmDE[-287/111] Proper motion along DEmas/yrpos.pm;pos.eq.decfloatFUV[14.21/23.82]? GALEX/FUV band photometrymagphot.mag;em.UVfloatnullableNUV[14.28/25]? GALEX/NUV band photometrymagphot.mag;em.UVfloatnullableVmag[12.73/20.79]? DSS derived V band magnitude, Lepine & Shara (2005, Cat. I/298)magphot.mag;em.opt.VfloatnullableJmag[9.98/17.08]? 2MASS J band magnitudemagphot.mag;em.IR.JfloatnullableHmag[9.34/16.95]? 2MASS H band magnitudemagphot.mag;em.IR.HfloatnullableKsmag[9.03/16.38]? 2MASS K_s_ band magnitudemagphot.mag;em.IR.KfloatnullableNUV-V[-1.44/9.6]? Galex NUV - DSS V band colormagphot.color;em.UV;em.optfloatnullableV-Ks[0.52/6.19]? DSS V - 2MASS K_s_ colormagphot.color;em.opt.V;em.IR.KfloatnullableTypeWD+dM type (1)src.classcharRefReference (2)meta.ref;pos.framecharJ/AJ/154/118/table2Spectral Types, Radial Velocities, and Spectroscopic Distances of the Newly Identified SUPERBLINK WD+dMsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPMSUPERBLINK identifier (PM IHHMMm+DDMMW) (G1)meta.id;meta.maincharSpT-dM[0/9.5] Derived M dwarf spectral typesrc.spTypefloatTeff-WD[6000/100000] White dwarf effective temperatureKphys.temperature.effectivedoublelogg-WD[5.5/9] White dwarf surface gravitylog(cm.s**-2)phys.gravityfloatRV-WD[-377.5/333.1] White dwarf radial velocitykm/sphys.veloc;pos.heliocentricfloate_RV-WD[7.5/723.6] Uncertainty in RV-WDkm/sstat.errorfloatRV-dM[-665.1/553.9] M dwarf radial velocitykm/sphys.veloc;pos.heliocentricfloate_RV-dM[5.3/576.3] Uncertainty in RV-dMkm/sstat.errorfloatRV-Sys[-487.6/514.3] System radial velocitykm/sphys.veloc;pos.heliocentricfloate_RV-Sys[0.2/428.5] Uncertainty in RV-Syskm/sstat.errorfloatSep[0/33499.38] Separation (in AU)AUpos.angDistancedoubleAFlag[0/2] Activity flag (1 = Active M dwarf, 0 = Inactive M dwarf, 2 = Not determined)meta.codeintDist-dM[29/1701]? Distance to M dwarfpcpos.distance;pos.heliocentricintnullableDist-WD[31/1184]? Distance to white dwarfpcpos.distance;pos.heliocentricintnullable