J/AJ/155/114ivo://CDS.VizieR/J/AJ/155/114doi:10.26093/cds/vizier.51550114CDSHartman J.D.Quinn S.N.Bakos G.A.Torres G.Kovacs G.Latham D.W.,Noyes R.W.Shporer A.Fulton B.J.Esquerdo G.A.Everett M.E.Penev K.,Bhatti W.Csubry Z.2019-01-08T08:07:53Z2018-11-09T09:39:15ZCDS support team

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

cds-question@unistra.freclipsing-binary-starsdwarf-starsm-starsphotometryradial-velocityspectroscopymultiple-starsline-intensitieschemical-abundanceseffective-temperatureWe report the discovery by the HATNet survey of HAT-TR-318-007, a P=3.34395390+/-0.00000020 day period detached double-lined M dwarf binary with total secondary eclipses. We combine radial velocity (RV) measurements from TRES/FLWO 1.5 m and time-series photometry from HATNet, FLWO 1.2 m, BOS 0.8 m, and NASA K2 Campaign 5, to determine the masses and radii of the component stars: M_A_=0.448+/-0.011 M_{sun}_^N^, M_B_=0.2721_-0.0042_^+0.0041^ M_{sun}_^N^, R_A_=0.4548_-0.0036_^+0.0035^ R_{sun}_^N^, and R_B_=0.2913_-0.0024_^+0.0023^ R_{sun}_^N^. We obtained a FIRE/Magellan near-infrared spectrum of the primary star during a total secondary eclipse, and we use this to obtain disentangled spectra of both components. We determine spectral types of ST_A_=M3.71+/-0.69 and ST_B_=M5.01+/-0.73 and effective temperatures of T_eff,A_=3190+/-110 K and T_eff,B_=3100+/-110 K for the primary and secondary star, respectively. We also measure a metallicity of [Fe/H]=+0.298+/-0.080 for the system. We find that the system has a small, but significant, nonzero eccentricity of 0.0136+/-0.0026. The K2 light curve shows a coherent variation at a period of 3.41315_-0.00032_^+0.00030^ days, which is slightly longer than the orbital period, and which we demonstrate comes from the primary star. We interpret this as the rotation period of the primary. We perform a quantitative comparison between the Dartmouth stellar evolution models and the seven systems, including HAT-TR-318-007, that contain M dwarfs with 0.2 M_{sun}_^N^<M<0.5 M_{sun}_^N^, have metallicity measurements, and have masses and radii determined to better than 5% precision. Discrepancies between the predicted and observed masses and radii are found for three of the systems.2018AJ....155..114Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/155/114CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/141/166 : HATNet variability survey of K and M dwarfs (Hartman+, 2011)J/ApJ/748/93 : K-band spectra for 133 nearby M dwarfs (Rojas-Ayala+, 2012)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/155/114https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/155/114http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/155/114https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/155/114https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/155/114http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/155/114GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/155/114/table9 (Equivalent widths and inferred metallicities from FIRE/Magellan following Terrien et al. (2012ApJ...747L..38T))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/114/table9?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/114/table9?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/114/table9?GETtext/xml+votable180.050000true82.8641494-3.67722830.005555555555555556Cone search capability for table J/AJ/155/114/table12 (*Literature M dwarfs in eclipsing binary systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/155/114/table12?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/155/114/table12?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/155/114/table12?GETtext/xml+votable180.050000true157.73004533.57408940.0055555555555555566/3512 4298 4694 4708 7675 9929 10169 12187 14555 14757 15159 18895 20713 21477 21676 22040 22289 22807 23229 23738 24345 27405 40430 40623 40941https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/155/114?format=asciidefaultJ/AJ/155/114/table2Time-series photometry data for HAT-TR-318-007recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDObject identifier (1)meta.id;meta.maincharFacFacility identifier (2)meta.id;instrcharFilter[Kp r i] Filter usedinstr.setup;instr.filtercharBJD[811.024/3214.432269] Barycentric Julian Date (TDB; BJD-2454000) (3)dtime.epochdoubleRawmag[-1/15.7704]? Raw magnitude in Filter (4)magphot.magfloatnullablee_Rawmag[0.0004/6.6063]? Error in Rawmagmagstat.error;phot.magfloatnullableCormag[13.5346/15.4047]? Corrected magnitude in Filter (5)magphot.mag;arith.diffdoublenullableT-Tc[-0.09421/0.1824]? Time from eclipse center (6)dtime.intervaldoublenullableS[0.1002/0.4297]? The S parameter (7)stat.fit.paramdoublenullableD[-0.026/0.012]? The D parameter (7)stat.fit.paramdoublenullableK[-0.0113/0.0212]? The K parameter (7)stat.fit.paramdoublenullableJ/AJ/155/114/table4Relative radial velocities for HAT-TR-318-007 from FLWO 1.5 m/TRESrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintBJDBarycentric Julian Datedtime.epochdoublen_BJD[e] Note on BJD (1)meta.notecharRVA[91.86/187.85] Primary radial velocity (2)km/sphys.veloc;pos.heliocentricfloate_RVA[0.6/1.39] Uncertainty in RVA (3)km/sstat.errorfloatRVB[62.07/220.2]? Secondary radial velocity (2)km/sphys.veloc;pos.heliocentricfloatnullablee_RVB[1.68/3.69]? Uncertainty in RVB (4)km/sstat.errorfloatnullableC[0.343/0.792] Normalized cross-correlation peak heightstat.correlationfloatJ/AJ/155/114/table6Disentangled FIRE/Magellan spectra of HAT-TR-318-007recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWave[8321.04/24137.6] Wavelength ({AA})0.1nmem.wldoublePFlux[0.28879/4.03168] Primary's flux (1)phot.flux.densitydoublee_PFlux[0.00257/0.26515] Error in PFlux (2)stat.errordoubleSFlux[-0.26764/1.09283] Secondary's flux (1)phot.flux.densitydoublee_SFlux[0.00262/0.44873] Error in SFlux (2)stat.errordoubleJ/AJ/155/114/table9Equivalent widths and inferred metallicities from FIRE/Magellan following Terrien et al. (2012ApJ...747L..38T)SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget namemeta.id;meta.maincharm_Target[AB] Multiplicity index on Targetmeta.code.multipcharn_Target[ab] Note on Target (G1)meta.notecharEW(Ca)H[0.56/3.47] Ca equivalent width in the H band ({AA})0.1nmspect.line.eqWidthfloate_EW(Ca)H[0.22/0.4] Uncertainty in EW(Ca)H ({AA})0.1nmstat.errorfloatEW(K)H1[0.481/2.881] K equivalent width in the H1 band ({AA})0.1nmspect.line.eqWidthfloate_EW(K)H1[0.055/0.108] Uncertainty in EW(K)H1 ({AA})0.1nmstat.errorfloatEW(Na)K[4.34/7.96] Na equivalent width in the K band ({AA})0.1nmspect.line.eqWidthfloate_EW(Na)K[0.09/0.19] Uncertainty in EW(Na)K ({AA})0.1nmstat.errorfloatEW(Ca)K[1.05/5.59] Ca equivalent width in the K band ({AA})0.1nmspect.line.eqWidthfloate_EW(Ca)K[0.12/0.27] Uncertainty in EW(Ca)K ({AA})0.1nmstat.errorfloatH2O-H[0.727/0.944] H2O-H spectral indexspect.indexfloate_H2O-H[0.012/0.021] Uncertainty in H2O-Hstat.errorfloatH2O-K[0.797/0.979] H2O-K spectral indexspect.indexfloate_H2O-K[0.019/0.034] Uncertainty in H2O-Kstat.errorfloat[Fe/H]H[-0.64/0.43] Metallicity in the H bandphys.abund.Fefloate_[Fe/H]H[0.08/0.14] Uncertainty in [Fe/H]Hstat.error;phys.abund.Fefloat[Fe/H]K[-0.294/0.498] Metallicity in the K bandphys.abund.Fefloate_[Fe/H]K[0.016/0.036] Uncertainty in [Fe/H]Kstat.error;phys.abund.Fefloat_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/AJ/155/114/table10Equivalent widths and inferred spectral types and metallicities from FIRE/Magellan following Rojas-Ayala et al. (2012, J/ApJ/748/93)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget namemeta.id;meta.maincharm_Target[AB] Multiplicity index on Targetmeta.code.multipcharn_Target[ab] Note on Target (G1)meta.notecharEW(Na)K[3.64/8.64] Na equivalent width in the K band ({AA})0.1nmspect.line.eqWidthfloate_EW(Na)K[0.36/0.7] Uncertainty in EW(Na)K ({AA})0.1nmstat.errorfloatEW(Ca)K[1.1/6.2] Ca equivalent width in the K band ({AA})0.1nmspect.line.eqWidthfloate_EW(Ca)K[0.19/0.85] Uncertainty in EW(Ca)K ({AA})0.1nmstat.errorfloatH2O-K[0.67/0.967] H2O-K spectral indexspect.indexfloate_H2O-K[0.008/0.016] Uncertainty in H2O-Kstat.errorfloatSpTypeMK spectral typesrc.spTypechare_SpType[0.18/0.38] Uncertainty in SpTypestat.error;src.spTypefloat[Fe/H][-0.408/0.634] [Fe/H] metallicityphys.abund.Zfloate_[Fe/H][0.046/0.143] Uncertainty in [Fe/H]stat.error;phys.abund.Fefloat[M/H][-0.282/0.45] Overall metallicityphys.abund.Zfloate_[M/H][0.035/0.103] Uncertainty in [M/H]stat.error;phys.abundfloatJ/AJ/155/114/table11Atmospheric parameters from FIRE/Magellan based on cross-correlation with BT-Settl synthetic templatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTargetTarget namemeta.id;meta.maincharm_Target[AB] Multiplicity index on Targetmeta.code.multipcharn_Target[ab] Note on Target (G1)meta.notecharTeff[2050/3870] Effective temperatureKphys.temperature.effectiveinte_Teff[100/110] Uncertainty in TeffKstat.error;phys.temperature.effectiveint[Fe/H][-0.31/0.27] Metallicityphys.abund.Zfloate_[Fe/H][0.13/0.15] Uncertainty in [Fe/H]stat.error;phys.abund.FefloatJ/AJ/155/114/table12*Literature M dwarfs in eclipsing binary systemsSimbadNameSimbad column added by the CDSmeta.idcharStarStar name (1)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintm_Star[ABC] Multiplicity index on Starmeta.code.multipcharn_Star[abcdef] Note on Star (2)meta.notecharMass[0.20255/0.499] Mass (in M_{sun}_^N^) (3)solMassphys.massdoublee_Mass[0.00066/0.019] Uncertainty in MasssolMassstat.error;phys.massdoubleRad[0.22623/0.5087] Radius (in R_{sun}_^N^) (3)solRadphys.size.radiusdoubleE_Rad[0.00059/0.013] Upper limit uncertainty in RadsolRadstat.error;stat.maxdoublee_Rad[0.00059/0.013] Lower limit uncertainty in RadsolRadstat.error;stat.mindoubleTeff[2950/3730]? Effective temperatureKphys.temperature.effectiveintnullablee_Teff[30/180]? Uncertainty in TeffKstat.error;phys.temperature.effectiveintnullable[Fe/H][-0.3/0.15]? Metallicityphys.abund.Zfloatnullablee_[Fe/H][0.03/0.2]? Uncertainty in [Fe/H]stat.error;phys.abund.FefloatnullableRefReference(s)meta.ref;pos.framecharBibcodeBibcode(s) of the reference(s)meta.bib.bibcodechar_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