J/ApJS/282/37ivo://CDS.VizieR/J/ApJS/282/37CDSSun Q.2026-08-26T14:16:53Z2026-08-26T15:08:33ZCDS support team

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

cds-question@unistra.frchemical-abundancesmultiple-starsexoplanetsvisible-astronomyspectroscopyinfrared-sourcesline-intensitiesWe present high-precision chemical abundances for 20 FGK stars hosting planets observed in JWST Cycle 2 GO programs. Using high-resolution, high-signal-to- noise ratio spectra from the ESO and Keck archives, we perform a strict line- by-line differential analysis relative to the Sun to derive stellar parameters and abundances of 19 elements from C to Zn. The stars span effective temperatures of 4500-6500 K and metallicities from -0.57 to +0.50 dex. The sample includes hosts of both gas giants and terrestrial planets, allowing direct comparison between stellar composition and planetary properties. Several of the giant planets orbit metal-rich stars. The detailed abundance patterns show clear chemical diversity, including carbon-enhanced but mildly metal-poor stars (TOI-824, TOI-561, TOI-1130, GJ 9827) and {alpha}-enhanced metal-poor stars (TOI-561, GJ 9827, TOI-824). These variations trace differences in protoplanetary disk composition and may influence planetary interiors and atmospheric chemistry. The planet hosts show a range of [C/O] ratios, and the diverse [Mg/Si] ratios may suggest varied interior compositions for their rocky planets. This homogeneous stellar abundance, together with future uniform JWST planetary atmosphere measurements, provides a foundation for exploring the planet mass-metallicity relation and the connection between stellar chemistry and planetary formation pathways. These results constitute the first step in a larger survey spanning multiple JWST cycles to systematically examine how host star composition shapes exoplanetary systems.2026ApJS..282...37Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/282/37CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/622/1102 : The planet-metallicity correlation. (Fischer+, 2005)J/A+A/465/271 : Oxygen abundances in nearby stars (Ramirez+, 2007)J/ApJ/654/625 : Rvel of 9 long-period objects (Wittenmyer+, 2007)J/ApJ/715/1050 : Abundances for extrasolar planets. I. (Bond+, 2010)J/ApJ/725/2349 : C/O vs Mg/Si of planetary systems (Delgado Mena+, 2010)J/A+A/509/A93 : Carbon-enhanced metal-poor stars (Masseron+, 2010)J/ApJ/735/24 : HAT-P-30 follow-up photometry (Johnson+, 2011)J/A+A/549/A134 : WASP transiting close-in giant planets (Hebrard+, 2013)J/MNRAS/445/1114 : WASP-69b, WASP-70Ab and WASP-84b (Anderson+, 2014)J/ApJ/791/14 : 18 Sco atomic data and equivalent widths (Melendez+, 2014)J/A+A/572/A49 : WASP-94AB phot. & radial velocities (Neveu-VanMalle+, 2014)J/ApJ/831/64 : Mass-metallicities for giant planets (Thorngren+, 2016)J/AJ/161/56 : The TESS-Keck Survey. II. RVs of TOI-561 (Weiss+, 2021)J/AJ/164/87 : Abundances of JWST target. I. FGK stars (Kolecki+, 2022)J/A+A/675/A115 : TOI-1130 radial velocities (Korth+, 2023)J/ApJ/946/L6 : JWST NIRSpec & MIRI sp. of SIPS J1256-1257B (Miles+, 2023)J/A+A/688/A193 : Ariel homogeneous stellar C, N, O abund. (da Silva+, 2024)J/ApJS/271/16 : Giant Outer Transiting Exopl. Mass survey IV. (Dalba+, 2024)J/A+A/701/A107 : PASTA II. Abund. for 25 solar twins and analogs (Sun+, 2025)http://exoplanetarchive.ipac.caltech.edu/ : NASA Exoplanet Archive homepagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/282/37https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/282/37http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/282/37https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/282/37https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/282/37http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/282/37GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/282/37/table1 (Stellar and planetary parameters for 20 planet-hosting F, G, and K stars in the JWST Cycle 2 GO program)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/282/37/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/282/37/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/282/37/table1?GETtext/xml+votable180.050000true107.6002519-39.09738080.0055555555555555566/9843 15160 15200 16395 18569 18785 18943 22001 26278 26521 27358 33386 35210 39542 41786 43847 44200 47717 48178 49103https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/282/37?format=asciiOpticalInfrareddefaultJ/ApJS/282/37/table1Stellar and planetary parameters for 20 planet-hosting F, G, and K stars in the JWST Cycle 2 GO programVt[0.8/2.2]? Microturbulent velocitykm/sphys.veloc.microTurbfloatnullablee_Vt[0.03/0.3]? Vt uncertainty (1)km/sstat.error;phys.veloc.microTurbfloatnullableRefReference(s) (2)meta.ref;phys.size.radiuscharAbundLink to average abundances of this star (Table 2)meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTeff[4504/6577]? Stellar effective temperatureKphys.temperature.effectiveintnullablee_Teff[16/121]? Teff lower error or uncertainty (1)Kstat.error;phys.temperature.effectiveintnullableE_Teff[84]? Teff upper error (1)Kstat.error;stat.max;phys.temperature.effectiveintnullablelogg[4/4.76]? Log of surface gravitylog(cm.s**-2)phys.gravityfloatnullablee_logg[0.04/0.33]? logg lower error or uncertainty (1)log(cm.s**-2)stat.error;phys.gravityfloatnullableE_logg[0.03]? Upper uncertainty on logg (1)log(cm.s**-2)stat.error;stat.max;phys.gravityfloatnullable[Fe/H][-0.61/0.48]? Metallicity ([Fe/H])log(Sun)phys.abund.Zfloatnullablee_[Fe/H][0.01/0.1]? [Fe/H] Lower error or uncertainty (1)log(Sun)stat.error;phys.abund.FefloatnullableE_[Fe/H][0.051]? Upper uncertainty on [Fe/H] (1)log(Sun)stat.error;stat.max;phys.abund.FefloatnullablePlanetPlanet namemeta.id;meta.maincharPer[0.44/94864] Perioddtime.perioddoubleRp[0.8/13.4] Planet radiusphys.size.radiusfloatx_RpUnit of planet radiusmeta.unit;phys.size.radiuscharu_Mp[~] Uncertainty flag on Mpmeta.code.errorcharMp[0.26/326] Planet massphys.massfloatx_MpUnit of Mpmeta.unit;phys.masscharEWLink to equivalent widths of this star (Table A2)meta.ref.urlchar_RAPositions from SIMBAD host stars (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD host stars (declination part)degpos.eq.dec;meta.mainNameStar namemeta.id.parentcharf_NameFlag on Namemeta.codecharu_Rp[~] Uncertainty flag on Rpmeta.code.errorcharIDAbbreviated identifier as used in Table2 and A2; column added by CDsmeta.idcharJ/ApJS/282/37/table2Stellar abundances for 20 planet-host F, G, K stars in JWST Cycle 2 GO programIonIonphys.atmol.ionStagecharsigmuTOI-561[0.004/0.11]? Standard deviation of the meanstat.stdev;stat.meanfloatnullable[X/H]TOI-125[-0.14/0.17]? Average abundance for X=Ion for TOI-125phys.abund;stat.meanfloatnullablee_[X/H]GJ9827[0.068/0.5]? Total uncertainty in [X/H]-GJ9827stat.error;phys.abundfloatnullableerratmGJ504[0.008/0.04]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZ[6/30] Atomic numberphys.atmol.numberintf_IonFlag (1)meta.codechar[X/H]WASP-121[0.03/0.9]? Average abundance for X=Ion for WASP-121phys.abund;stat.meanfloatnullablesigmuWASP-121[0.01/0.2]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmWASP-121[0.014/0.06]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]WASP-121[0.026/0.2]? Total uncertainty in [X/H]-WASP-121stat.error;phys.abundfloatnullable[X/H]WASP-94A[0.14/0.5]? Average abundance for X=Ion for WASP-94~Aphys.abund;stat.meanfloatnullablesigmuWASP-94A[0.001/0.13]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmWASP-94A[0.02/0.07]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]WASP-94A[0.025/0.13]? Total uncertainty in [X/H]-WASP-94Astat.error;phys.abundfloatnullable[X/H]WASP-69[0.17/1.21]? Average abundance for X=Ion for WASP-69phys.abund;stat.meanfloatnullablesigmuWASP-69[0.01/0.25]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmWASP-69[0.012/0.17]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]WASP-69[0.028/0.25]? Total uncertainty in [X/H]-WASP-69stat.error;phys.abundfloatnullable[X/H]WASP-52[0.03/0.85]? Average abundance for X=Ion for WASP-52phys.abund;stat.meanfloatnullablesigmuWASP-52[0.006/0.26]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmWASP-52[0.02/0.12]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]WASP-52[0.03/0.27]? Total uncertainty in [X/H]-WASP-52stat.error;phys.abundfloatnullable[X/H]WASP-47[0.35/0.63]? Average abundance for X=Ion for WASP-47phys.abund;stat.meanfloatnullablesigmuWASP-47[0.004/0.09]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmWASP-47[0.006/0.03]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]WASP-47[0.016/0.09]? Total uncertainty in [X/H]-WASP-47stat.error;phys.abundfloatnullable[X/H]WASP-18[-0.23/0.68] Average abundance for X=Ion for WASP-18phys.abund;stat.meanfloatsigmuWASP-18[0.008/0.35] Standard deviation of the meanstat.stdev;stat.meanfloaterratmWASP-18[0.02/0.1] Atmosphere uncertaintystat.error;obs.atmosfloate_[X/H]WASP-18[0.02/0.4] Total uncertainty in [X/H]-WASP-18stat.error;phys.abundfloat[X/H]WASP-15[-0.27/0.3]? Average abundance for X=Ion for WASP-15phys.abund;stat.meanfloatnullablesigmuWASP-15[0.009/0.169]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmWASP-15[0.02/0.06]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]WASP-15[0.026/0.18]? Total uncertainty in [X/H]-WASP-15stat.error;phys.abundfloatnullable[X/H]TOI-824[-0.62/0.75]? Average abundance for X=Ion for TOI-824phys.abund;stat.meanfloatnullablesigmuTOI-824[0.006/0.21]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmTOI-824[0.024/0.17]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]TOI-824[0.049/0.23]? Total uncertainty in [X/H]-TOI-824stat.error;phys.abundfloatnullable[X/H]TOI-561[-0.52/0.02]? Average abundance for X=Ion for TOI-561phys.abund;stat.meanfloatnullableerratmTOI-561[0.005/0.04]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]TOI-561[0.013/0.12]? Total uncertainty in [X/H]-TOI-561stat.error;phys.abundfloatnullable[X/H]TOI-1130[-0.26/0.85]? Average abundance for X=Ion for TOI-1130phys.abund;stat.meanfloatnullablesigmuTOI-1130[0.014/0.2]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmTOI-1130[0.019/0.2]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]TOI-1130[0.026/0.24]? Total uncertainty in [X/H]-TOI-1130stat.error;phys.abundfloatnullablesigmuTOI-125[0.003/0.11]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmTOI-125[0.01/0.05]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]TOI-125[0.015/0.12]? Total uncertainty in [X/H]-TOI-125stat.error;phys.abundfloatnullable[X/H]PH2[-0.34/0.31]? Average abundance for X=Ion for PH2phys.abund;stat.meanfloatnullablesigmuPH2[0/0.21]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmPH2[0.003/0.2]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]PH2[0.003/0.3]? Total uncertainty in [X/H]-PH2stat.error;phys.abundfloatnullable[X/H]NGTS-2[-0.27/0.33]? Average abundance for X=Ion for NGTS-2phys.abund;stat.meanfloatnullablesigmuNGTS-2[0/0.19]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmNGTS-2[0.04/0.11]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]NGTS-2[0.04/0.2]? Total uncertainty in [X/H]-NGTS-2stat.error;phys.abundfloatnullable[X/H]LTT9779[0.19/0.54]? Average abundance for X=Ion for LTT 9779phys.abund;stat.meanfloatnullablesigmuLTT9779[0.008/0.12]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmLTT9779[0.01/0.07]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]LTT9779[0.019/0.12]? Total uncertainty in [X/H]-LTT9779stat.error;phys.abundfloatnullable[X/H]Kepler-12[-0.1/0.32] Average abundance for X=Ion for Kepler-12phys.abund;stat.meanfloatsigmuKepler-12[0.008/0.1] Standard deviation of the meanstat.stdev;stat.meanfloaterratmKepler-12[0.01/0.05] Atmosphere uncertaintystat.error;obs.atmosfloate_[X/H]Kepler-12[0.02/0.11] Total uncertainty in [X/H]-Kepler-12stat.error;phys.abundfloat[X/H]HD106315[-0.46/0.62]? Average abundance for X=Ion for HD 106315phys.abund;stat.meanfloatnullablesigmuHD106315[0/0.23]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmHD106315[0.03/0.09]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]HD106315[0.04/0.25]? Total uncertainty in [X/H]-HD106315stat.error;phys.abundfloatnullable[X/H]HAT-P-30[-0.11/0.2] Average abundance for X=Ion for HAT-P-30phys.abund;stat.meanfloatsigmuHAT-P-30[0.003/0.16] Standard deviation of the meanstat.stdev;stat.meanfloaterratmHAT-P-30[0.005/0.2] Atmosphere uncertaintystat.error;obs.atmosfloate_[X/H]HAT-P-30[0.009/0.16] Total uncertainty in [X/H]-HAT-P-30stat.error;phys.abundfloat[X/H]GJ9827[-0.67/0.44]? Average abundance for X=Ion for GJ 9827phys.abund;stat.meanfloatnullablesigmuGJ9827[0.018/0.5]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratmGJ9827[0.05/0.18]? Atmosphere uncertaintystat.error;obs.atmosfloatnullable[X/H]GJ504[0.039/0.6]? Average abundance for X=Ion for GJ 504phys.abund;stat.meanfloatnullablesigmuGJ504[0.007/0.22]? Standard deviation of the meanstat.stdev;stat.meanfloatnullablee_[X/H]GJ504[0.02/0.22]? Total uncertainty in [X/H]GJ504stat.error;phys.abundfloatnullable[X/H]14HER[0.28/1.03]? Average abundance for X=Ion for 14 Herculisphys.abund;stat.meanfloatnullablesigmu14HER[0.012/0.18]? Standard deviation of the meanstat.stdev;stat.meanfloatnullableerratm14HER[0.02/0.1]? Atmosphere uncertaintystat.error;obs.atmosfloatnullablee_[X/H]14HER[0.04/0.2]? Total uncertainty in [X/H]14HERstat.error;phys.abundfloatnullableJ/ApJS/282/37/tablea2Equivalent width measurements for solar and stellar spectraIon[6/30] Ion identifier (1)phys.atmol.ionStagefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[4465.8/8773.9] Wavelength0.1nmem.wldoubleExPot[0/9.15] Excitation potentialeVphys.atmol.excitationfloatloggf[-6.13/0.55] Log, statistical weight*oscillator strengthstat.weight;phys.atmol.oscStrengthfloatC6[7.42e-33/2.8] Damping constant of the linephys.atmol.dampingdoubleESPRESSO[7.5/158.1]? Equivalent width, solar spectrum, with VLT/ESPRESSO1e-13mspect.line.eqWidthfloatnullableHIRES[8.2/158.1]? Equivalent width, solar spectrum, with Keck/HIRES1e-13mspect.line.eqWidthfloatnullableHARPS[7.4/122.8]? Equivalent width, solar spectrum, with ESO-3.6m/HARPS1e-13mspect.line.eqWidthfloatnullableFEROS[8.8/161.6]? Equivalent width, solar spectrum, with ESO-2.2m/FEROS1e-13mspect.line.eqWidthfloatnullableUVES[10.2/154.2]? Equivalent width, solar spectrum, with VLT/UVES1e-13mspect.line.eqWidthfloatnullableWASP-121[10.5/146.2]? Equivalent width, WASP-1211e-13mspect.line.eqWidthfloatnullableWASP-94A[10.1/125]? Equivalent width, WASP-94A1e-13mspect.line.eqWidthfloatnullableWASP-69[10.5/148.1]? Equivalent width, WASP-691e-13mspect.line.eqWidthfloatnullableWASP-52[10/181.3]? Equivalent width, WASP-521e-13mspect.line.eqWidthfloatnullableWASP-47[15.3/164]? Equivalent width, WASP-471e-13mspect.line.eqWidthfloatnullableWASP-18[10.4/140.1]? Equivalent width, WASP-181e-13mspect.line.eqWidthfloatnullableWASP-15[10/109.1]? Equivalent width, WASP-151e-13mspect.line.eqWidthfloatnullableTOI-824[10.3/178]? Equivalent width, TOI-8241e-13mspect.line.eqWidthfloatnullableTOI-561[10.1/129.6]? Equivalent width, TOI-5611e-13mspect.line.eqWidthfloatnullableTOI-1130[4.1/501.3]? Equivalent width, TOI-11301e-13mspect.line.eqWidthfloatnullableTOI-125[10.4/161.1]? Equivalent width, TOI-1251e-13mspect.line.eqWidthfloatnullablePH2[12.2/161]? Equivalent width, PH2 (Keck)1e-13mspect.line.eqWidthfloatnullableNGTS-2[11.1/125.4]? Equivalent width, NGTS-21e-13mspect.line.eqWidthfloatnullableLTT9779[10.3/179.7]? Equivalent width, LTT 97791e-13mspect.line.eqWidthfloatnullableKepler-12[10.4/151]? Equivalent width, Kepler-121e-13mspect.line.eqWidthfloatnullableHD106315[10.2/94.3]? Equivalent width, HD 1063151e-13mspect.line.eqWidthfloatnullableHAT-P-30[10/141.4]? Equivalent width, HAT-P-301e-13mspect.line.eqWidthfloatnullableGJ9827[10/346.4]? Equivalent width, GJ 98271e-13mspect.line.eqWidthfloatnullableGJ504[10.2/132.6]? Equivalent width, GJ 5041e-13mspect.line.eqWidthfloatnullable14HER[14.6/283.7]? Equivalent width, 14 Herculis1e-13mspect.line.eqWidthfloatnullable