J/ApJ/854/145ivo://CDS.VizieR/J/ApJ/854/145doi:10.26093/cds/vizier.18540145CDSMace G.N.Mann A.W.Skiff B.A.Sneden C.Kirkpatrick J.D.,Schneider A.C.Kidder B.Gosnell N.M.Kim H.Mulligan B.W.Prato L.,Jaffe D.2019-01-22T13:35:33Z2019-01-02T11:29:09ZCDS support team

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

cds-question@unistra.frmultiple-starswhite-dwarf-starsphotometryvisible-astronomyinfrared-astronomyspectroscopyradial-velocityFollowing the discovery of the T8 subdwarf WISE J200520.38+542433.9 (Wolf 1130C), which has a proper motion in common with a binary (Wolf 1130AB) consisting of an M subdwarf and a white dwarf, we set out to learn more about the old binary in the system. We find that the A and B components of Wolf 1130 are tidally locked, which is revealed by the coherence of more than a year of V-band photometry phase-folded to the derived orbital period of 0.4967 days. Forty new high-resolution, near-infrared spectra obtained with the Immersion Grating Infrared Spectrometer (IGRINS) provide radial velocities and a projected rotational velocity (vsini) of 14.7+/-0.7km/s for the M subdwarf. In tandem with a Gaia parallax-derived radius and verified tidal locking, we calculate an inclination of i=29{deg}+/-2{deg}. From the single-lined orbital solution and the inclination we derive an absolute mass for the unseen primary (1.24_-0.15_^+0.19^M_{sun}_). Its non-detection between 0.2 and 2.5{mu}m implies that it is an old (>3.7Gyr) and cool (T_eff_<7000K) ONe white dwarf. This is the first ultramassive white dwarf within 25pc. The evolution of Wolf 1130AB into a cataclysmic variable is inevitable, making it a potential SN Ia progenitor. The formation of a triple system with a primary mass >100 times the tertiary mass and the survival of the system through the common-envelope phase, where ~80% of the system mass was lost, is remarkable. Our analysis of Wolf 1130 allows us to infer its formation and evolutionary history, which has unique implications for understanding low-mass star and brown dwarf formation around intermediate-mass stars.2018ApJ...854..145Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/854/145CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/198 : Palomar/MSU nearby star spectroscopic survey (Hawley+ 1997)I/311 : Hipparcos, the New Reduction (van Leeuwen, 2007)II/319 : UKIDSS-DR9 LAS, GCS and DXS Surveys (Lawrence+ 2012)I/337 : Gaia DR1 (Gaia Collaboration, 2016)VI/39 : Model Atmospheres (Kurucz, 1979)V/99 : Cataclysmic Binaries and LMXB Catalogue (Ritter+ 1998)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/AJ/113/806 : M-Subdwarfs (Gizis 1997)J/ApJS/141/503 : Radial Velocities for 889 late-type stars (Nidever+, 2002)J/MNRAS/367/1329 : Elemental abundances for 176 stars (Reddy+, 2006)J/A+A/465/249 : Age and colors of massive white dwarf stars (Althaus+, 2007)J/ApJS/175/191 : Variables from 2MASS calibration fields (Plavchan+, 2008)J/ApJ/704/975 : Rotational velocities for M dwarfs (Jenkins+, 2009)J/PASP/121/117 : Fe & Ti abundances of low-metallicity M stars (Woolf+, 2009)J/MNRAS/407/1657 : Rotation velocities of dwarf M stars (Houdebine, 2010)J/A+A/521/A12 : Radial velocities of nearby late-type stars (Maldonado+, 2010)J/A+A/529/A75 : Limb-darkening coefficients (Claret+, 2011)J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)J/MNRAS/426/1507 : Detached M dwarf eclipsing binaries in WTS (Birkby+, 2012)J/ApJ/757/112 : Stellar diameters. II. K and M-stars (Boyajian+, 2012)J/ApJ/753/156 : T/Y brown dwarfs with WISE photometry (Kirkpatrick+, 2012)J/ApJ/750/L37 : Stellar parameters of low-mass KOIs (Muirhead+, 2012)J/ApJ/748/93 : K-band spectra for 133 nearby M dwarfs (Rojas-Ayala+, 2012)J/ApJ/758/56 : Young M dwarfs within 25pc. II. Kinematics (Shkolnik+, 2012)J/AJ/145/102 : Bright M dwarfs spectrosc. in the northern sky (Lepine+, 2013)J/ApJS/205/6 : T dwarf population revealed by WISE (Mace+, 2013)J/AJ/145/52 : Abundances of late K & M dwarfs in binary syst. (Mann+, 2013)J/ApJ/779/188 : Spectra of nearby late K and M Kepler stars (Mann+, 2013)J/A+A/551/A36 : Metallicity of M dwarfs. III. (Neves+, 2013)J/ApJ/794/143 : New SpeX Observations of M7-L6 Dwarfs (Bardalez+, 2014)J/A+A/562/A71 : Abundances of solar neighbourhood dwarfs (Bensby+, 2014)J/ApJ/795/161 : Activity & rotation in Praesepe & the Hyades (Douglas+, 2014)J/MNRAS/443/2561 : CONCH-SHELL catalog of nearby M dwarfs (Gaidos+, 2014)J/AJ/147/20 : Spectroscopy of 447 nearby M dwarfs (Newton+, 2014)J/ApJ/788/48 : X-ray through NIR photometry of NGC 2617 (Shappee+, 2014)J/ApJ/810/158 : M,L,T dwarfs parameters and SEDs (Filippazzo+, 2015)J/ApJ/804/64 : Empirical and model parameters of 183 M dwarfs (Mann+, 2015)J/ApJ/810/157 : V471 Tau system: RVs and BVRI LCs (Vaccaro+, 2015)J/AJ/152/141 : Solar neighborhood. XXXVII. RVs for M dwarfs (Benedict+, 2016)J/AJ/152/40 : Spectrosc. of 341 bright A- & B-type stars (Gullikson+, 2016)J/MNRAS/462/2295 : 25 parsec local white dwarf population (Holberg+, 2016)J/MNRAS/455/3413 : New WD and subdwarf stars in SDSS DR12 (Kepler+, 2016)J/ApJ/821/93 : Rotation & Galactic kinematics of mid M dwarfs (Newton+, 2016)J/ApJ/838/73 : Brown dwarf surface gravities with Keck/NIRSPEC (Martin, 2017)J/ApJ/834/85 : H{alpha} emission in nearby M dwarfs (Newton+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/854/145https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/854/145http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/854/145https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/854/145https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/854/145http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/854/145GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticalInfrareddefaultJ/ApJ/854/145/table1V-band photometry of Wolf 1130ABrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJD[56857.1/57329.3] Modified Julian Datedtime.epochdoubleVmag[11.8/11.9] Apparent V band magnitudemagphot.mag;em.opt.Vfloate_Vmag[0.002/0.006] The 1{sigma} uncertainty in Vmagmagstat.error;phot.mag;em.opt.VfloatPhaseRelative phase (G1)time.phasefloatJ/ApJ/854/145/table2IGRINS derived radial velocities of Wolf 1130ArecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintDateUT date of the observationtime.epoch;obsnullableMJD[56849.3/57239.4] Modified Julian Datedtime.epochdoubleRV[-155/88] Radial velocity {nu}1km/sphys.veloc;pos.heliocentricfloate_RV[0.16/0.18] 1{sigma} uncertainty in RVkm/sstat.errorfloatPhaseRelative phase (G1)time.phasefloat