J/AJ/156/140ivo://CDS.VizieR/J/AJ/156/140doi:10.26093/cds/vizier.51560140CDSIrwin J.M.Charbonneau D.Esquerdo G.A.Latham D.W.Winters J.G.,Dittmann J.A.Newton E.R.Berta-Thompson Z.K.Berlind P.Calkins M.L.2019-03-26T11:39:14Z2019-03-18T14:31:37ZCDS support team

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

cds-question@unistra.frmultiple-starseclipsing-binary-starsdwarf-starsm-starsbrown-dwarfsproper-motionsvisible-astronomynarrow-band-photometryinfrared-photometryradial-velocityUsing data from the MEarth-North and MEarth-South transit surveys, we present the detection of eclipses in four mid M-dwarf systems: LP 107-25, LP 261-75, LP 796-24, and LP 991-15. Combining the MEarth photometry with spectroscopic follow-up observations, we show that LP 107-25 and LP 796-24 are short-period (1.388 and 0.523 day, respectively) eclipsing binaries in triple-lined systems with substantial third-light contamination from distant companions. LP 261-75 is a short-period (1.882 day) single-lined system consisting of a mid M-dwarf eclipsed by a probable brown dwarf secondary, with another distant visual brown dwarf companion. LP 991-15 is a long-period (29.3 day) double-lined eclipsing binary on an eccentric orbit with a geometry that produces only primary eclipses. A spectroscopic orbit is given for LP 991-15, and initial orbits for LP 107-25 and LP 261-75.2018AJ....156..140Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/156/140CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/98 : NLTT Catalogue (Luyten, 1979)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)I/298 : LSPM-North Catalog (Lepine+ 2005)I/339 : Hot Stuff for One Year (HSOY) (Altmann+, 2017)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/AJ/126/3007 : Spectroscopy of faint red NLTT dwarfs (Reid+, 2003)J/AJ/130/1680 : LSPM-North proper-motion catalog nearby stars (Lepine+, 2005)J/ApJ/699/649 : Young M dwarfs within 25pc. I. (Shkolnik+, 2009)J/ApJ/742/123 : Photometry and Velocity of LSPM J1112+7626 (Irwin+, 2011)J/ApJ/812/3 : MEarth mid-to-late M dwarfs rotation + kinematics (West+, 2015)J/ApJ/818/153 : MEarth photometry: nearby M-dwarf magnitudes (Dittmann+, 2016)J/ApJ/821/93 : Rotation & Galactic kinematics of mid M dwarfs (Newton+, 2016)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/156/140https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/156/140http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/156/140https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/156/140https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/156/140http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/156/140GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/156/140/table1 (Summary of the photometric and astrometric properties of the four systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/156/140/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/156/140/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/156/140/table1?GETtext/xml+votable180.050000true322.039166763.35038890.0055555555555555566/5659 15754 24932 355948.650015785639275e-20 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/156/140?format=asciiOpticalInfrareddefaultJ/AJ/156/140/table1Summary of the photometric and astrometric properties of the four systemsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identifier from the NLTT catalog (Cat. I/98, LPNNN-NN)meta.id;meta.maincharprimary2MASS2MASS identifier (JHHMMSSss-DDMMSSs)meta.idcharmoreindicates RV data in Table 4 for this objectmeta.ref.urlcharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainPer[0.523438/29.2679] Orbital period (from Table 3 of this paper)dtime.perioddoublee_Per[1.4e-08/8.1e-06] Uncertainty in Per (from Table 3 of this paper)dstat.errordoublepmRA[-0.292/0.243] Proper motion along RAarcsec/yrpos.pm;pos.eq.rafloate_pmRA[0.002/0.008]? Uncertainty in pmRAarcsec/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE[-0.171/0.189] Proper motion along DEarcsec/yrpos.pm;pos.eq.decfloate_pmDE[0.002/0.008]? Uncertainty in pmDEarcsec/yrstat.error;pos.pm;pos.eq.decfloatnullableSource1[1/6] Source reference (1)meta.bibintPlx[0.021033/0.031633] Astrometric parallax {pi}_trig_arcsecpos.parallax.trigdoublee_Plx[6.4e-05/0.00014] Uncertainty in Plxarcsecstat.error;pos.parallaxdoubleGmag[12.749/13.98] Gaia G band magnitudemagphot.mag;em.optfloatBPmag[14.163/15.84] Gaia G_BP_ magnitudemagphot.mag;em.opt.BfloatRPmag[11.586/12.692] Gaia G_RP_ magnitudemagphot.mag;em.opt.RfloatSource2[3] Source reference (1)meta.bibintJmag[9.988/10.814] 2MASS J band magnitudemagphot.mag;em.IR.Jfloate_Jmag[0.021/0.026] Uncertainty in Jmagmagstat.error;phot.mag;em.IR.JfloatHmag[9.406/10.205] 2MASS H band magnitudemagphot.mag;em.IR.Hfloate_Hmag[0.019/0.028] Uncertainty in Hmagmagstat.error;phot.mag;em.IR.HfloatKsmag[9.164/9.918] 2MASS K_s_ band magnitudemagphot.mag;em.IR.Kfloate_Ksmag[0.019/0.023] Uncertainty in Ksmagmagstat.error;phot.mag;em.IR.KfloatSpTypeMK spectral typesrc.spTypecharSource3[4/5]? Source reference (1)meta.bibintnullableLCLight curvemeta.ref.urlcharVCVelocity curvesmeta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharJ/AJ/156/140/table2Light curve dataF[0] Flags (4)meta.code.errorintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identifier from the NLTT catalog (Cat. I/98, LPNNN-NN)meta.id;meta.maincharDatasetDataset name; telescope / observationmeta.id;meta.dataset;obscharBJDBarycentric Julian Date at mid-exposuredtime.epochdoubleDmag[-0.43185/0.225121] Differential magnitudemagphot.mag;arith.diffdoublee_Dmag[0.001806/0.011568] Uncertainty in Dmagmagstat.error;phot.mag;arith.diffdoubleTexp[32.031/60.037] Exposure timestime.duration;obs.exposurefloatDMag[-0.7505/0.1183] Frame magnitude zero point offsetmagphot.mag;arith.zpfloatFWHM[0/7.387] FWHM of stellar imagespixphys.angSizefloatEllip[0.005/0.481] Ellipticity of stellar imagessrc.ellipticityfloatAirmass[1.00268/2.91807] Airmass at mid-exposureobs.airMassdoubleXpix[242.44/1760.169] X pixel coordinate of starpixpos.cartesian.xdoubleYpix[24.392/2014.681] Y pixel coordinate of starpixpos.cartesian.ydoubleAngle[-180/180] Angle relative to reference imagedegphys.angSize;srcfloatSky[32.21/9270.42] Local sky background level (in ADU)instr.skyLevelfloatPeak[477/22795] Peak counts in object, including sky (in ADU)phot.countintS[1/10] The "Segment number" (1)meta.numberintV[1/13] The "Instrument version number" (2)meta.numberintR[0/2] Realtime status flag (3)meta.code.errorintCM[-0.012045/0.012568] Common-mode differential magnitude (5)magphot.mag;arith.diffdoubleJ/AJ/156/140/table4Radial velocity datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameObject identifier from the NLTT catalog (Cat. I/98, LPNNN-NN) (1)meta.id;meta.maincharBJDBarycentric Julian Date (TDB)dtime.epochdoubleRV1[-43.197/38.591] Radial velocity of the primarykm/sspect.dopplerVelocfloatRV2[-124.2/103.919]? Radial velocity of the secondarykm/sspect.dopplerVelocdoublenullableRV3[-22.153/-9.361]? Radial velocity of the tertiarykm/sspect.dopplerVelocfloatnullableh[0.8233/0.9435] Cross-correlation at the best-fitting radial velocitystat.correlationfloatTexp[2700/3900] Exposure timestime.duration;obs.exposureint