J/MNRAS/549/G107ivo://CDS.VizieR/J/MNRAS/549/G1070CDSFreckelton A.V.Mortier A.Bedell M.Cretignier M.Kolecki J.R.,Korn A.J.Sousa S.G.Tsantaki M.Brewer J.M.Buchhave L.A.Davies G.R.,Gonzalez Hernandez J.I.Morrell S.Nielsen M.B.Passegger V.M.,Quirrenbach A.Roy A.Santos N.C.Suarez Mascareno A.Watson C.A.,Zhao L.L.2026-09-16T11:29:09Z2026-09-16T12:25:21ZCDS support team

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

cds-question@unistra.frf-starsphotometryvisible-astronomyinfrared-astronomyradial-velocitymetallicityspectroscopyMany areas of astrophysics, including exoplanetary studies, rely on precise and accurate stellar parameters. This demands that uncertainties on these parameters truly reflect all biases and systematics. Within this second work of the gr8stars collaboration, we take a set of 585 bright FGK type dwarfs with high resolution, high signal-to-noise ratio spectra from the SOPHIE (Spectrographe pour l'Observation des Phenomenes des Interieurs stellaires et des Exoplanetes) spectrograph. We determine stellar effective temperature, surface gravity, and metallicity using five different spectroscopic methods for each star, with an additional method used for comparisons. We find a typical scatter of 76K in Teff, 0.14dex in logg, and 0.07dex in [Fe/H]. These deviations are significantly larger than the average precision error on these parameters. We furthermore use isochrone fitting to determine mass, radius, and age for all 585 stars, using input from all results. We use the radii determined by SED (Spectral Energy Distribution) fitting in the first gr8stars paper as a comparison to our isochronal radii from this work, in addition to comparing the isochronal logg to spectroscopic logg. The scatter in mass and radius from the use of different spectroscopic methods is investigated and propagated to exoplanetary parameters. The induced fractional uncertainties in planetary radius (<~3 per cent) and mass (<~5 per cent) are found to be below those typically found in the literature. We estimate a lower limit on planetary equilibrium temperature fractional uncertainty of ~4 per cent, a noise floor that is currently not sufficiently represented in the literature.2026MNRAS.549g1070Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/549/G1070CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/540/1786 : gr8stars. I. (Freckelton+, 2025)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/549/G1070https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/549/G1070http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/549/G1070https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/549/G1070https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/549/G1070http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/549/G1070GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/549/G1070/spectros (Gr8stars spectroscopic results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/549/G1070/spectros?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/549/G1070/spectros?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/549/G1070/spectros?GETtext/xml+votable180.050000true45.01171647.7497550.005555555555555556Cone search capability for table J/MNRAS/549/G1070/isochron (Gr8stars isochrone results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/549/G1070/isochron?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/549/G1070/isochron?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/549/G1070/isochron?GETtext/xml+votable180.050000true45.01171647.7497550.0055555555555555566/60 120 151 414 417 455 475 701 712 719 742 758 871 892 934 964 987 1042 1108 1111 1247 1260 1265 1330 1355 1408 1452 1617 1623 1706 1711 1728 1739 1757 1873 1932 1949 2043 2063 2086 2111 2144 2149 2169 2240 2258 2261 2287 2305 2336 2366 2497 2517 2565 2612 2622-2623 2651-2652 2658 2816 2880 2908 2912 2919 2942 2988 3011 3036 3199-3200 3313-3314 3321 3509 3572 3575 3609 3639 3649 3663 3766 3780 3792 3805 3809 3919 3927 3979 3988 4072 4129 4156 4227 4460 4495 4528 4570 4665 4697 4758 4781 4875 4912 4914 4982 4991 5053 5062 5065 5074 5101 5135 5143 5232 5263 5271 5522 5551 5655 5659 5663 5668 5759 5790 5872 5878 5914 5976 6026 6087 6153 6165 6171 6269 6273 6277 6325-6326 6436 6523 6632 6699 6761 6831 6852 6890 6919 6965 6971 6998 7027 7115 7208-7209 7217 7311 7326 7352 7361 7436 7868 7871 7887 7907 7926 7928 7933 7956 7996 8058 8066 8069 8080 8084 8094 8109 8156 8226 8249 8252 8286 8345 8379 8433 8444 8463 8475 8537 8545 8614 8635 8643 8652 8663 8700 8733 8746 8787-8788 8804 8814 8816 8863 8867 8881 8957 8993 9002 9026 9029 9093 9112 9114 9295 9323 9354 9393 9400 9407 9443 9492 9551 9553 9679-9680 9705 9768 9801 9841 9854 9873 9934 10004 10006 10019 10034 10051-10052 10062-10063 10115 10140 10151 10199 10209 10235 10285 10334 10400 10424 10436 10632 10676 10705 10718 10721 10810 10819 10886 10899 10936 10954 11101 11103 11119 11146 11150 11165 11180 11212 11214 11303 11311 11314 11385 11405 11428 11444-11445 11450-11451 11484 11519 11535 11556 11581 11587 11589 11636 11710 11713 11734 11768 11794 11816 11837 11840 11858 11935 12039 12096 12146 12295 12341 12405 12512 12527 12556 12576 12592 12609 12621 12654 12681 12713 12792 12825 12922 12964 12988 13025 13036 13057 13124 13181 13363 13437 13447 13452 13480 13563 13568 13733 13768 13772 13778 13800 13931-13932 14036 14066 14079 14084 14131 14140 14191 14248 14252 14263 14347 14411 14414 14482 14502 14534 14539 14556 14573 14593 14607 14662 14692 14735 14757 14838 14881 14901 14948 14951 14976 15091 15177 15227 15376 15506 15542 15712 15727 15750 15848 15856 15864 15887 15962 16031 16060 16134 16185 16338 16342 16350 16359 16880 17314 17607 17636 17641 17758 17873 17954 18095 18115 18131 18184 18195 18217 18232 18266 18288 18313 18369 18407 18615 18696 18711 18821 19035 19140 19156 19181 19243 19345 19424 19466 19509 19745 19751 19779 19863 19874 19900 20006 20016 20043 20072-20073 20118 20145 20237 20292 20332 20400 20446 20454 20479 21211 21400 21412 21809 21864 21869 21901 22036 22122 22125 22142 22238 22287 22340 22355 22361 22408 22590 22608 22746 22779 22800 22955 22995 23033 23096 23130 23150 23271 23277 23284 23306 23342 23396 23479 23503 23513 23515 23544 23575 23646 23661 23713 23770 23774 23780 23787 23796 23818 23872-23873 23893 23938 23943 24016 24018-24019 24027 24036 24105 24117 24192 24194 24218 24227 24297 24299 24312 24373 24388 24499 24521 24532 24558 25538 25688 25692 25739 25870 25966 26030 26160 26242 26305https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/549/G1070?format=asciiOpticalInfrareddefaultJ/MNRAS/549/G1070/spectrosGr8stars spectroscopic resultsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintloggsme? webSME surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_loggsme? webSME logg uncertaintylog(cm.s**-2)stat.errorfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharNameNamemeta.id;meta.maincharTeffPAWSPAWS effective temperatureKphys.temperature.effectiveinte_TeffPAWSPAWS effective temperature uncertaintyKstat.errorintloggPAWSPAWS surface gravitylog(cm.s**-2)phys.gravityfloate_loggPAWSPAWS logg uncertaintylog(cm.s**-2)stat.errorfloat[Fe/H]PAWSPAWS metallicityphys.abund.Fefloate_[Fe/H]PAWSPAWS metallicity uncertaintystat.error;phys.abund.FefloatvmicPAWSPAWS microturbulent velocitykm/sphys.velocfloate_vmicPAWSPAWS microturbulent velocity uncertaintykm/sstat.errorfloatTeffSED? SED fitting effective temperatureKphys.temperature.effectivefloatnullablee_TeffSED? SED fitting effective temperature uncertaintyKstat.errorfloatnullableTeffARES+MOOGARES+MOOG effective temperatureKphys.temperature.effectiveinte_TeffARES+MOOGARES+MOOG effective temperature uncertaintyKstat.errorintloggARES+MOOGARES+MOOG surface gravitylog(cm.s**-2)phys.gravityfloate_loggARES+MOOGARES+MOOG logg uncertaintylog(cm.s**-2)stat.errorfloat[Fe/H]ARES+MOOGARES+MOOG metallicityphys.abund.Fefloate_[Fe/H]ARES+MOOGARES+MOOG metallicity uncertaintystat.error;phys.abund.FefloatvmicARES+MOOGARES+MOOG microturbulent velocitykm/sphys.velocfloate_vmicARES+MOOGARES+MOOG microturbulent velocity uncertaintykm/sstat.errorfloatTeffYARARAYARARA effective temperatureKphys.temperature.effectiveintloggYARARAYARARA surface gravitylog(cm.s**-2)phys.gravityfloat[Fe/H]YARARAYARARA metallicityphys.abund.FefloatTeffFASMAFASMA effective temperatureKphys.temperature.effectiveinte_TeffFASMAFASMA effective temperature uncertaintyKstat.errorintloggFASMAFASMA surface gravitylog(cm.s**-2)phys.gravityfloate_loggFASMAFASMA logg uncertaintylog(cm.s**-2)stat.errorfloat[Fe/H]FASMAFASMA metallicityphys.abund.Fefloate_[Fe/H]FASMAFASMA metallicity uncertaintystat.error;phys.abund.FefloatvmicFASMAFASMA microturbulent velocitykm/sphys.velocfloate_vmicFASMAFASMA microturbulent velocity uncertaintykm/sstat.errordoubleEWteFfPAWS Equivalent Widths effective temperatureKspect.line.eqWidthdoubleEWloggPAWS Equivalent Widths surface gravitylog(cm.s**-2)spect.line.eqWidthdoubleEW[Fe/H]PAWS Equivalent Widths metallicityphys.abund.FedoubleTeffPASTEL? PASTEL effective temperatureKphys.temperature.effectivefloatnullableloggPASTEL? PASTEL surface gravitylog(cm.s**-2)phys.gravityfloatnullable[Fe/H]PASTEL? PASTEL metallicityKphys.abund.FefloatnullableTeffMetalPipe? MetalPipe effective temperatureKphys.temperature.effectivefloatnullablee_TeffMetalPipe? MetalPipe effective temperature uncertaintyKstat.errorfloatnullableloggMetalPipe? MetalPipe surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_loggMetalPipe? MetalPipe logg uncertaintylog(cm.s**-2)stat.errorfloatnullable[Fe/H]MetalPipe? MetalPipe metallicityphys.abund.Fefloatnullablee_[Fe/H]MetalPipe? MetalPipe metallicity uncertaintystat.error;phys.abund.FefloatnullableTeffsme? webSME effective temperatureKphys.temperature.effectivefloatnullablee_Teffsme? webSME effective temperature uncertaintyKstat.errorfloatnullable_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/MNRAS/549/G1070/isochronGr8stars isochrone resultsRadARES+MOOG? ARES+MOOG radiussolRadphys.size.radiusfloatnullableB_RadFASMA? FASMA radius upper limitsolRadphys.size.radius;stat.maxfloatnullableRadSED? SED fitting radiussolRadphys.size.radiusfloatnullableB_RadSED? SED fitting radius upper limitsolRadphys.size.radius;stat.maxfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameNamemeta.id;meta.maincharb_MassPAWS? Lower limit of PAWS stellar masssolMassphys.mass;stat.minfloatnullableMassPAWS? PAWS stellar masssolMassphys.massfloatnullableB_MassPAWS? Upper limit of PAWS stellar masssolMassphys.mass;stat.maxfloatnullableb_RadPAWS? Lower limit of PAWS stellar radiussolRadphys.size.radius;stat.minfloatnullableRadPAWS? PAWS stellar radiussolRadphys.size.radiusfloatnullableB_RadPAWS? Upper limit of PAWS stellar radiussolRadphys.size.radius;stat.maxfloatnullableb_AgePAWS? PAWS age lower limitGyrtime.age;stat.minfloatnullableAgePAWS? PAWS ageGyrtime.agefloatnullableB_AgePAWS? PAWS age upper limitGyrtime.age;stat.maxfloatnullableb_loggPAWS? PAWS isochronal logg lower limitlog(cm.s**-2)phys.gravity;stat.minfloatnullableloggPAWS? PAWS isochronal surface gravitylog(cm.s**-2)phys.gravityfloatnullableB_loggPAWS? PAWS isochronal logg upper limitlog(cm.s**-2)phys.gravity;stat.maxfloatnullableb_MassARES+MOOG? ARES+MOOG mass lower limitsolMassphys.mass;stat.minfloatnullableMassARES+MOOG? ARES+MOOG masssolMassphys.massfloatnullableB_MassARES+MOOG? ARES+MOOG mass upper limitsolMassphys.mass;stat.maxfloatnullableb_RadARES+MOOG? ARES+MOOG radius lower limitsolRadphys.size.radius;stat.minfloatnullableB_RadARES+MOOG? ARES+MOOG radius upper limitsolRadphys.size.radius;stat.maxfloatnullableb_AgeARES+MOOG? ARES+MOOG age lower limitGyrtime.age;stat.minfloatnullableAgeARES+MOOG? ARES+MOOG ageGyrtime.agefloatnullableB_AgeARES+MOOG? ARES+MOOG age upper limitGyrtime.age;stat.maxfloatnullableb_loggARES+MOOG? ARES+MOOG isochrone logg lower limitlog(cm.s**-2)phys.gravity;stat.minfloatnullableloggARES+MOOG? ARES+MOOG isochronal surface gravitylog(cm.s**-2)phys.gravityfloatnullableB_loggARES+MOOG? ARES+MOOG isochronal logg upper limitlog(cm.s**-2)phys.gravity;stat.maxfloatnullableb_MassFASMA? FASMA mass lower limitsolMassphys.mass;stat.minfloatnullableMassFASMA? FASMA masssolMassphys.massfloatnullableB_MassFASMA? FASMA mass upper limitsolMassphys.mass;stat.maxfloatnullableb_RadFASMA? FASMA radius lower limitsolRadphys.size.radius;stat.minfloatnullableRadFASMA? FASMA radiussolRadphys.size.radiusfloatnullableb_AgeFASMA? FASMA age lower limitGyrtime.age;stat.minfloatnullableAgeFASMA? FASMA ageGyrtime.agefloatnullableB_AgeFASMA? FASMA age upper limitGyrtime.age;stat.maxfloatnullableb_loggFASMA? FASMA isochrone logg lower limitlog(cm.s**-2)phys.gravity;stat.minfloatnullableloggFASMA? FASMA isochone surface gravitylog(cm.s**-2)phys.gravityfloatnullableB_loggFASMA? FASMA isochone logg upper limitlog(cm.s**-2)phys.gravity;stat.maxfloatnullableb_MassYARARA? YARARA mass lower limitsolMassphys.mass;stat.minfloatnullableMassYARARA? YARARA masssolMassphys.massfloatnullableB_MassYARARA? YARARA mass upper limitsolMassphys.mass;stat.maxfloatnullableb_RadYARARA? YARARA radius lower limitsolRadphys.size.radius;stat.minfloatnullableRadYARARA? YARARA radiussolRadphys.size.radiusfloatnullableB_RadYARARA? YARARA radius upper limitsolRadphys.size.radius;stat.maxfloatnullableb_AgeYARARA? YARARA age lower limitGyrtime.age;stat.minfloatnullableAgeYARARA? YARARA ageGyrtime.agefloatnullableB_AgeYARARA? YARARA age upper limitGyrtime.age;stat.maxfloatnullableb_loggYARARA? YARARA isochrone logg lower limitlog(cm.s**-2)phys.gravity;stat.minfloatnullableloggYARARA? YARARA isochrone surface gravitylog(cm.s**-2)phys.gravityfloatnullableB_loggYARARA? YARARA isochrone logg upper limitlog(cm.s**-2)phys.gravity;stat.maxfloatnullableb_MassMetalPipe? MetalPipe mass lower limitsolMassphys.mass;stat.minfloatnullableMassMetalPipe? MetalPipe masssolMassphys.massfloatnullableB_MassMetalPipe? MetalPipe mass upper limitsolMassphys.mass;stat.maxfloatnullableb_RadMetalPipe? MetalPipe radius lower limitsolRadphys.size.radius;stat.minfloatnullableRadMetalPipe? MetalPipe radiussolRadphys.size.radiusfloatnullableB_RadMetalPipe? MetalPipe radius upper limitsolRadphys.size.radius;stat.maxfloatnullableb_AgeMetalPipe? MetalPipe age lower limitGyrtime.age;stat.minfloatnullableAgeMetalPipe? MetalPipe ageGyrtime.agefloatnullableB_AgeMetalPipe? MetalPipe age upper limitGyrtime.age;stat.maxfloatnullableb_loggMetalPipe? MetalPipe isochrone logg lower limitlog(cm.s**-2)phys.gravity;stat.minfloatnullableloggMetalPipe? MetalPipe isochrone surface gravitylog(cm.s**-2)phys.gravityfloatnullableB_loggMetalPipe? MetalPipe isochrone logg upper limitlog(cm.s**-2)phys.gravity;stat.maxfloatnullableb_MassCombined? Combined mass lower limitsolMassphys.mass;stat.minfloatnullableMassCombined? Combined masssolMassphys.massfloatnullableB_MassCombined? Combined mass upper limitsolMassphys.mass;stat.maxfloatnullableb_RadCombined? Combined radius lower limitsolRadphys.size.radius;stat.minfloatnullableRadCombined? Combined radiussolRadphys.size.radiusfloatnullableB_RadCombined? Combined radius upper limitsolRadphys.size.radius;stat.maxfloatnullableb_AgeCombined? Combined age lower limitGyrtime.age;stat.minfloatnullableAgeCombined? Combined ageGyrtime.agefloatnullableB_AgeCombined? Combined age upper limitGyrtime.age;stat.maxfloatnullableb_loggCombined? Combined isochrone logg lower limitlog(cm.s**-2)phys.gravity;stat.minfloatnullableloggCombined? Combined isochrone surface gravitylog(cm.s**-2)phys.gravityfloatnullableB_loggCombined? Combined isochrone logg upper limitlog(cm.s**-2)phys.gravity;stat.maxfloatnullableb_RadSED? SED fitting radius lower limitsolRadphys.size.radius;stat.minfloatnullable_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