J/AJ/143/67ivo://CDS.VizieR/J/AJ/143/67doi:10.26093/cds/vizier.51430067CDSDhital S.West A.A.Stassun K.G.Bochanski J.J.Massey A.P.,Bastien F.A.2017-10-02T19:28:32Z2013-05-28T10:47:31ZCDS support team

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

cds-question@unistra.frm-starsmultiple-starsradial-velocityline-intensitiesstellar-spectral-typesproper-motionsstellar-distancevisible-astronomysloan-photometryWe report the results from spectroscopic observations of 113 ultra-wide, low-mass binary systems, largely composed of M0-M3 dwarfs, from the SLoWPoKES catalog of common proper motion pairs identified in the Sloan Digital Sky Survey (Dhital et al., 2010, Cat. J/AJ/139/2566). Radial velocities of each binary member were used to confirm that they are comoving and, consequently, to further validate the high fidelity of the SLoWPoKES catalog. Ten stars appear to be spectroscopic binaries based on broad or split spectral features, supporting previous findings that wide binaries are likely to be hierarchical systems. We measured the H{alpha} equivalent width of the stars in our sample and found that components of 81% of the observed pairs have similar H{alpha} levels. The difference in H{alpha} equivalent width among components with similar masses was smaller than the range of H{alpha} variability for individual objects. We confirm that the Lepine et al. (2007ApJ...669.1235L) {zeta}-index traces iso-metallicity loci for most of our sample of M dwarfs. However, we find a small systematic bias in {zeta}, especially in the early-type M dwarfs. We use our sample to recalibrate the definition of {zeta}. While representing a small change in the definition, the new {zeta} is a significantly better predictor of iso-metallicity for the higher-mass M dwarfs.2012AJ....143...67Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/143/67CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)III/198 : Palomar/MSU nearby star spectroscopic survey (Hawley+ 1997)J/AJ/141/97 : SDSS DR7 M dwarfs (West+, 2011)J/AJ/139/2566 : Paper I: SLoWPoKES catalog (Dhital+, 2010)J/AJ/140/1402 : M dwarf flares from SDSS spectra (Hilton+, 2010)J/AJ/135/785 : SDSS-DR5 low-mass star spectroscopic sample (West+, 2008)J/AJ/131/1674 : Close binary systems from SDSS DR4 (Silvestri+, 2006)J/AJ/128/426 : Subdwarfs in the SDSS (West+, 2004)J/AJ/125/1598 : New high proper motion stars in northern sky (Lepine+, 2003)J/AJ/123/3356 : Palomar/MSU star spectroscopic survey. III. (Gizis+, 2002)J/A+A/331/581 : Rotation and activity in field M dwarfs (Delfosse+ 1998)J/AJ/113/806 : M-Subdwarfs (Gizis 1997)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/143/67https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/143/67http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/143/67https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/143/67https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/143/67http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/143/67GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/143/67/table2 (Properties of observed SLoWPoKES binaries)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/143/67/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/143/67/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/143/67/table2?GETtext/xml+votable180.050000true228.093833320.47238890.0055555555555555566/4107 4117 4245 4396 4721 4780 4788 4863 4899 4908 4911 5066 5224 5436 5513 5564 5653 5663 5699 5701 5719 5756 5793 5838 5874 5918 6039 6041 6094 6107 6109 6199 6242 6423 6473 6542 6612 6617 6626 7183 7276 7340 7392 7476 7522 7665 8245 8620 8717 8749 8859 9413 9500 10251 10336 10420 10513 10598 10796 10804 11016 11023 11082 11157 11196 11254 11328 11364 11369 11914 11970 17317 17513 17667 17747 17774 19753 21873 22002 25683 25926 26052 26294 26314 26331 26335 26344 26462 26510 27007 27054 27191 27228 27257 27585 27629 27887 28128 28161 28204 28353 28403 28509 28550 28574 28663 28666 31434 31450 367252.85864675833786e-19 3.5010283109654867e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/143/67?format=asciiOpticaldefaultJ/AJ/143/67/table2Properties of observed SLoWPoKES binariesSpT2Secondary's spectral type (K7, M0 to M5) (5)src.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSLWBinary identifier in SLoWPoKES catalog, as in SLoWPoKES.I (J/AJ/139/2566) (HHMM+DD; J2000) (1)meta.id;meta.maincharRA1Primary's Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDE1Primary's Degree of Declination (J2000)pos.eq.dec;meta.mainRA2Secondary's Hour of Right Ascension (J2000)pos.eq.raDE2Secondary's Degree of Declination (J2000)pos.eq.decSep[8/65] Separation {theta} between the componentsarcsecpos.angDistance;src.orbitalfloatDist1Primary's photometric distance (2)pcpos.distance;pos.heliocentricintDist2Secondary's photometric distance (2)pcpos.distance;pos.heliocentricintpmRA1Primary's proper motion in RA (2)mas/yrpos.pm;pos.eq.raintpmRA2Secondary's proper motion in RA (2)mas/yrpos.pm;pos.eq.raintpmDE1Primary's proper motion in DE (2)mas/yrpos.pm;pos.eq.decintpmDE2Secondary's proper motion in DE (2)mas/yrpos.pm;pos.eq.decintRVel1Primary's radial velocity (3)km/sphys.veloc;pos.heliocentricfloatRVel2Secondary's radial velocity (3)km/sphys.veloc;pos.heliocentricfloatrmag1Primary's SDSS r band psf magnitude (4)magphot.mag;em.opt.Rfloatrmag2Secondary's SDSS r band psf magnitude (4)magphot.mag;em.opt.Rfloat(r-z)1[0.66/2.52] Primary's SDSS (r-z) color indexmagphot.colorfloat(r-z)2[0.77/3.08] Secondary's SDSS (r-z) color indexmagphot.colorfloatSpT1Primary's spectral type (K7, M0 to M4) (5)src.spTypecharEW1Primary's H{alpha} equivalent width0.1nmspect.line.eqWidth;em.line.HalphafloatEW2Secondary's H{alpha} equivalent width0.1nmspect.line.eqWidth;em.line.HalphafloatCaH2.1Primary's CaH2 molecular band index (6)spect.indexfloatCaH2.2Secondary's CaH2 molecular band index (6)spect.indexfloatCaH3.1Primary's CaH3 molecular band index (6)spect.indexfloatCaH3.2Secondary's CaH3 molecular band index (6)spect.indexfloatTiO5.1Primary's TiO5 molecular band index (6)spect.indexfloatTiO5.2Secondary's TiO5 molecular band index (6)spect.indexfloatPapIDisplay the data from Paper I (Cat. J/AJ/139/2566) if anymeta.numberintnullableSDSSDisplay the SDSS-DR7 and -DR9 photometric catalogs (Cat. II/294 + Cat. V/139) within 65" of primary's coordinatesmeta.ref.urlcharSloanDisplay the SDSS online data for the nearest object around primary's positionmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.refchar