J/ApJ/804/64ivo://CDS.VizieR/J/ApJ/804/64doi:10.26093/cds/vizier.18040064CDSMann A.W.Feiden G.A.Gaidos E.Boyajian T.Von Braun K.2018-03-01T14:31:00Z2015-06-02T08:16:11ZCDS support team

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

cds-question@unistra.frm-starsstellar-spectral-typeseffective-temperaturechemical-abundancesphotometryPrecise and accurate parameters for late-type (late K and M) dwarf stars are important for characterization of any orbiting planets, but such determinations have been hampered by these stars' complex spectra and dissimilarity to the Sun. We exploit an empirically calibrated method to estimate spectroscopic effective temperature (T_eff_) and the Stefan-Boltzmann law to determine radii of 183 nearby K7-M7 single stars with a precision of 2%-5%. Our improved stellar parameters enable us to develop model-independent relations between T_eff_ or absolute magnitude and radius, as well as between color and T_eff_. The derived T_eff_-radius relation depends strongly on [Fe/H], as predicted by theory. The relation between absolute K_S_magnitude and radius can predict radii accurate to ~=3%. We derive bolometric corrections to the VR_C_I_C_grizJHK_S_ and Gaia passbands as a function of color, accurate to 1%-3%. We confront the reliability of predictions from Dartmouth stellar evolution models using a Markov chain Monte Carlo to find the values of unobservable model parameters (mass, age) that best reproduce the observed effective temperature and bolometric flux while satisfying constraints on distance and metallicity as Bayesian priors. With the inferred masses we derive a semi-empirical mass-absolute magnitude relation with a scatter of 2% in mass. The best-agreement models overpredict stellar T_eff_ values by an average of 2.2% and underpredict stellar radii by 4.6%, similar to differences with values from low-mass eclipsing binaries. These differences are not correlated with metallicity, mass, or indicators of activity, suggesting issues with the underlying model assumptions, e.g., opacities or convective mixing length.2015ApJ...804...64Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/804/64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/298 : LSPM-North Catalog (Lepine+ 2005)J/AJ/142/138 : All-sky catalog of bright M dwarfs (Lepine+, 2011)J/MNRAS/443/2561 : Trumpeting M dwarfs with CONCH-SHELL (Gaidos+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/804/64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/804/64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/804/64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/804/64https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/804/64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/804/64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/804/64/stars (Data on all 183 stars (tables 5-7 of the paper))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/804/64/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/804/64/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/804/64/stars?GETtext/xml+votable180.050000true2.8825359.144410.0055555555555555566/131 250 251 309 527 546 624 725 728 811 824 861 1033 1672 1788 1875 1938 2144 2159 2190 2330 2515 2737 3005 3118 3313 4366 4444 4775 5000 5009 5420 5488 5534 5590 5676 5853 6662 6672 6705 6894 6902 6924 7103 7264 7736 8588 8843 9399 9529 9578 9585 9597 9629 9888 10149 10225 10464 10983 11391 11403 11636 12856 13301 13688 13793 13931 14252 14277 14419 14709 14772 14814 14850 15031 15311 15548 15602 16462 16758 17302 17534 17813 17870 18003 18195 18496 18553 18666 18856 19064 19203 19466 19836 20005 20023 20071 20100 20240 20379 20459 20683 20690 21151 21171 21747 21953 22040 22277 22309 22626 22645 22709 22807 23564 23731 23735 23867 23997 24227 25300 25363 25849 25880 26216 26560 26583 26726 26772 26972 27201 27392 27456 27459 27462 27519 27730 27912 27973 28494 28548 28955 29684 29756 30429 30505 30522 30771 30833 31019 31087 31191 31606 31781 31960 32033 32063 32115 32229 32335 32444 32491 32575 35830 36483 40197 40386 40387 40610 40679 44921 44937 44970 46566 48906 48926 48958https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/804/64?format=asciidefaultJ/ApJ/804/64/starsData on all 183 stars (tables 5-7 of the paper)SimbadNameSimbad column added by the CDSmeta.idchare_zmagError on zmagmagstat.error;phot.mag;em.opt.IfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintoridetails from the three catalogs usedmeta.ref;pos.frameintnullableNameLG11, CONCH-Shell, or LSPM Name (1)meta.id;meta.maincharCNS3? Gliese or GJ namemeta.idcharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainFbol[0.02/23] Bolometric Flux (10^-8^erg/cm^2^/s)10pW.m**-2phot.flux.boldoublee_Fbol[0.0002/0.2] Error on Fbol10pW.m**-2stat.errordoubleTeff[2700/4131] Stellar effective temperatureKphys.temperature.effectiveinte_Teff[60/86] Error on TeffKstat.error;phys.temperature.effectiveintR[0.1/0.7] Stellar RadiussolRadphys.size.radiusfloate_R[0.005/0.04] Error on RsolRadstat.errorfloatM[0.08/0.75] Stellar MasssolMassphys.massfloate_M[0.008/0.08] Error on MsolMassstat.errorfloat[Fe/H][-0.61/0.53] Metallicitylog(Sun)phys.abund.Zfloate_[Fe/H][0.03/0.08] Error on [Fe/H]log(Sun)stat.error;phys.abund.FefloatSpTMK spectral Typesrc.spTypecharBmag[7.4/18.7] Synthetic Johnson B magnitudemagphot.mag;em.opt.Bfloate_Bmag[0.02/0.04] Error on Bmagmagstat.error;phot.mag;em.opt.BfloatVmagSynthetic Johnson V magnitudemagphot.mag;em.opt.Vfloate_VmagError on Vmagmagstat.error;phot.mag;em.opt.VfloatRmagSynthetic Cousins R magnitudemagphot.mag;em.opt.Rfloate_RmagError on Rmagmagstat.error;phot.mag;em.opt.RfloatImagSynthetic Cousins I magnitudemagphot.mag;em.opt.Ifloate_ImagError on Imagmagstat.error;phot.mag;em.opt.IfloatgmagSynthetic SDSS g magnitudemagphot.mag;em.opt.Bfloate_gmagError on gmagmagstat.error;phot.mag;em.opt.BfloatrmagSynthetic SDSS r magnitudemagphot.mag;em.opt.Rfloate_rmagError on rmagmagstat.error;phot.mag;em.opt.RfloatimagSynthetic SDSS i magnitudemagphot.mag;em.opt.Ifloate_imagError on imagmagstat.error;phot.mag;em.opt.IfloatzmagSynthetic SDSS z magnitudemagphot.mag;em.opt.IfloatJmagSynthetic 2MASS J magnitudemagphot.mag;em.IR.Jfloate_JmagError on Jmagmagstat.error;phot.mag;em.IR.JfloatHmagSynthetic 2MASS H magnitudemagphot.mag;em.IR.Hfloate_HmagError on Hmagmagstat.error;phot.mag;em.IR.HfloatKsmagSynthetic 2MASS Ks magnitudemagphot.mag;em.IR.Kfloate_KsmagError on Ksmagmagstat.error;phot.mag;em.IR.KfloatGmagSynthetic Gaia G magnitudemagphot.mag;em.opt.Vfloate_GmagError on Gaiamagstat.error;phot.mag;em.opt.BfloatBPmagSynthetic Gaia Gbp magnitudemagphot.mag;em.opt.Vfloate_BPmagError on BPmagstat.error;phot.magfloatRPmagSynthetic Gaia Grp magnitudemagphot.mag;em.opt.Ifloate_RPmagError on RPmagstat.error;phot.magfloatFbol0[0.02/23]? Model inferred Bolometric Flux10pW.m**-2phot.flux.bol;meta.modelleddoublenullablee_Fbol0[0.0004/0.3]? Error on ModFbol10pW.m**-2stat.errordoublenullableTeff0[2808/4197]? Model inferred effective temperatureKphys.temperature.effective;meta.modelledintnullablee_Teff0[7/72]? Error on ModTeffKstat.errorintnullableR0[0.13/0.661]? Model inferred Stellar RadiussolRadphys.size.radius;meta.modelledfloatnullablee_R0[0.002/0.03]? Error on ModRsolRadstat.errorfloatnullableM0[0.1/0.72]? Model inferred Stellar MasssolMassphys.massfloatnullablee_M0[0.002/0.03]? Error on ModMsolMassstat.errorfloatnullableAge0[9.33/9.55]? Model inferred Agelog(yr)time.age;meta.modelledfloatnullablee_Age0[0.48/0.63]? Error on ModAgelog(yr)stat.errorfloatnullablechi2[0/29]? {chi}^2^ for model comparisonstat.fit.chi2floatnullable