J/A+A/701/A107ivo://CDS.VizieR/J/A+A/701/A107doi:10.26093/cds/vizier.37010107CDSSun Q.Ji C.Wang S.X.Lin Z.Teske J.Ting Y.-S.Bedell M.Liu F.2025-10-01T20:01:11Z2025-09-08T08:17:07ZCDS support team

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

cds-question@unistra.frg-starsexoplanetsline-intensitieschemical-abundancesvisible-astronomyPrevious studies have suggested that the Sun is relatively depleted in refractory elements compared to other solar twins or analogs, potentially as a result of planet formation. However, such conclusions are often limited by inhomogeneous samples and a lack of direct comparison with stars known to host planets. We aim to perform a homogeneous and precise abundance analysis of solar twins and analogs that host planets, to investigate possible chemical signatures associated with planet formation. We obtain high-resolution, high signal-to-noise ratio Magellan/MIKE spectra for 25 solar-like stars, including 22 confirmed or candidate planet hosts and three comparison stars. Stellar parameters and elemental abundances for 23 elements (from C to Eu) are derived through a strict line-by-line differential analysis relative to the Sun. Our sample spans [Fe/H]=-0.23 to +0.18 dex and includes 20 solar analogs, six of which are solar twins. Typical abundance uncertainties range from 0.01-0.05dex for lighter elements (e.g., Fe, Si, C, O, Na) and up to 0.1dex for neutron-capture elements. The Sun is consistently depleted in refractory elements relative to all solar analogs and twins, regardless of planet type. Stars hosting small planets tentatively show slightly stronger refractory element depletion than those hosting giant planets, though the difference is not yet statistically significant. We emphasize the need for strictly differential, line-by-line analyses relative to the Sun, as well as careful consideration of systematic differences between instruments, to ensure consistency and the homogeneity required to achieve our goals.2025A&A...701A.107Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/701/A107CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/701/A107https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/701/A107http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/701/A107https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/701/A107https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/701/A107http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/701/A107GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/701/A107/stars (List of studied stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/701/A107/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/701/A107/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/701/A107/stars?GETtext/xml+votable180.050000true24.4732083-60.51150.0055555555555555566/4128 20593 21114 21121 21197 21254 21956 23583 25140 27254 33510 33702 34445 34657 35954 37486 38279 38562 40220 40573 40668https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/701/A107?format=asciiOpticaldefaultJ/A+A/701/A107/starsList of studied starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameStar namemeta.id;meta.maincharRAJ2000? Right ascension (J2000)pos.eq.ra;meta.mainnullableDEJ2000? Declination (J2000)pos.eq.dec;meta.mainnullableSNameSimbad namemeta.idcharEWDisplay the equivalent widthsmeta.ref.urlcharAFeDisplay the Fe abundancesmeta.ref.urlcharAbundDisplay the other abundancesmeta.ref.urlcharJ/A+A/701/A107/tableb1Equivalent widthsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength of the spectral line0.1nmem.wl;spect.linedoubleSpeciesSpecies code (e.g., 26.0 = Fe I; 26.1 = Fe II)meta.codefloatEpExcitation potential of the lower leveleVphys.atmol.excitation;phys.atmol.levelfloatloggfLogarithm of the oscillator strength (gf)phys.atmol.oscStrengthfloatDampingCDamping constant C6 (van der Waals broadening)phys.atmol.damping;phys.atmoldoubleEWSun? Equivalent width for the Sun0.1pmspect.line.eqWidthfloatnullableEWhd10180? Equivalent width for HD 101800.1pmspect.line.eqWidthfloatnullableEWhd20782? Equivalent width for HD 207820.1pmspect.line.eqWidthfloatnullableEWhd31527? Equivalent width for HD 315270.1pmspect.line.eqWidthfloatnullableEWhd42618? Equivalent width for HD 426180.1pmspect.line.eqWidthfloatnullableEWhd45184? Equivalent width for HD 451840.1pmspect.line.eqWidthfloatnullableEWhd70573? Equivalent width for HD 705730.1pmspect.line.eqWidthfloatnullableEWhd75302? Equivalent width for HD 753020.1pmspect.line.eqWidthfloatnullableEWhd88072? Equivalent width for HD 880720.1pmspect.line.eqWidthfloatnullableEWhd98649? Equivalent width for HD 986490.1pmspect.line.eqWidthfloatnullableEWhip25670? Equivalent width for HIP 256700.1pmspect.line.eqWidthfloatnullableEWhip44713? Equivalent width for HIP 447130.1pmspect.line.eqWidthfloatnullableEWhip54287? Equivalent width for HIP 542870.1pmspect.line.eqWidthfloatnullableEWtoi248? Equivalent width for TOI-2480.1pmspect.line.eqWidthfloatnullableEWtoi426? Equivalent width for TOI-4260.1pmspect.line.eqWidthfloatnullableEWtoi479? Equivalent width for TOI-4790.1pmspect.line.eqWidthfloatnullableEWtoi564? Equivalent width for TOI_5640.1pmspect.line.eqWidthfloatnullableEWtoi652? Equivalent width for TOI-6520.1pmspect.line.eqWidthfloatnullableEWtoi867? Equivalent width for TOI-8670.1pmspect.line.eqWidthfloatnullableEWtoi1478? Equivalent width for TOI-14780.1pmspect.line.eqWidthfloatnullableEWtoi2447? Equivalent width for TOI-24470.1pmspect.line.eqWidthfloatnullableEWtoi2479? Equivalent width for TOI-24790.1pmspect.line.eqWidthfloatnullableEWtoi2518? Equivalent width for TOI-25180.1pmspect.line.eqWidthfloatnullableEWtoi2523? Equivalent width for TOI-25230.1pmspect.line.eqWidthfloatnullableEWtoi3359? Equivalent width for TOI-33590.1pmspect.line.eqWidthfloatnullableEWtoi4320? Equivalent width for TOI-43200.1pmspect.line.eqWidthfloatnullableJ/A+A/701/A107/tableb2Abundance measurements for Fe I and Fe IIAFehd20782? Abundance measurement for HD 20782phys.abundfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambdaWavelength of the spectral line0.1nmem.wl;spect.linedoubleSpeciesSpecies code (e.g., 26.0 = Fe I; 26.1 = Fe II)meta.codefloatEpExcitation potential of the lower leveleVphys.atmol.excitation;phys.atmol.levelfloatloggfLogarithm of the oscillator strength (gf)phys.atmol.oscStrengthfloatAFehd10180? Abundance measurement for HD 10180phys.abundfloatnullableAFehd31527? Abundance measurement for HD 31527phys.abundfloatnullableAFehd42618? Abundance measurement for HD 42618phys.abundfloatnullableAFehd45184? Abundance measurement for HD 45184phys.abundfloatnullableAFehd70573? Abundance measurement for HD 70573phys.abundfloatnullableAFehd75302? Abundance measurement for HD 75302phys.abundfloatnullableAFehd88072? Abundance measurement for HD 88072phys.abundfloatnullableAFehd98649? Abundance measurement for HD 98649phys.abundfloatnullableAFehip25670? Abundance measurement for HIP 25670phys.abundfloatnullableAFehip44713? Abundance measurement for HIP 44713phys.abundfloatnullableAFehip54287? Abundance measurement for HIP 54287phys.abundfloatnullableAFetoi248? Abundance measurement for TOI-248phys.abundfloatnullableAFetoi426? Abundance measurement for TOI-426phys.abundfloatnullableAFetoi479? Abundance measurement for TOI-479phys.abundfloatnullableAFetoi564? Abundance measurement for TOI-564phys.abundfloatnullableAFetoi652? Abundance measurement for TOI-652phys.abundfloatnullableAFetoi867? Abundance measurement for TOI-867phys.abundfloatnullableAFetoi1478? Abundance measurement for TOI-1478phys.abundfloatnullableAFetoi2447? Abundance measurement for TOI-2447phys.abundfloatnullableAFetoi2479? Abundance measurement for TOI-2479phys.abundfloatnullableAFetoi2518? Abundance measurement for TOI-2518phys.abundfloatnullableAFetoi2523? Abundance measurement for TOI-2523phys.abundfloatnullableAFetoi3359? Abundance measurement for TOI-3359phys.abundfloatnullableAFetoi4320? Abundance measurement for TOI-4320phys.abundfloatnullableJ/A+A/701/A107/tableb3AbundancesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSpeciesChemical element symbol (e.g., Fe, C, O)phys.atmol.elementcharAtomAtomic number of the elementphys.abundint1/2Tcond50% condensation temperature of elementsKphys.temperatureintAhd10180Abundance for HD 10180phys.abundfloate_Ahd10180Uncertainty in HD 10180 abundancestat.errorfloatAhd20782Abundance for HD 20782phys.abundfloate_Ahd20782Uncertainty in HD 20782 abundancestat.errorfloatAhd31527Abundance for HD 31527phys.abundfloate_Ahd31527Uncertainty in HD 31527 abundancestat.errorfloatAhd42618Abundance for HD 42618phys.abundfloate_Ahd42618Uncertainty in HD 42618 abundancestat.errorfloatAhd45184Abundance for HD 45184phys.abundfloate_Ahd45184Uncertainty in HD 45184 abundancestat.errorfloatAhd70573Abundance for HD 70573phys.abundfloate_Ahd70573Uncertainty in HD 70573 abundancestat.errorfloatAhd75302Abundance for HD 75302phys.abundfloate_Ahd75302Uncertainty in HD 75302 abundancestat.errorfloatAhd88072Abundance for HD 88072phys.abundfloate_Ahd88072Uncertainty in HD 88072 abundancestat.errorfloatAhd98649Abundance for HD 98649phys.abundfloate_Ahd98649Uncertainty in HD 98649 abundancestat.errorfloatAhip25670Abundance for HIP 25670phys.abundfloate_Ahip25670Uncertainty in HIP 25670 abundancestat.errorfloatAhip44713Abundance for HIP 44713phys.abundfloate_Ahip44713Uncertainty in HIP 44713 abundancestat.errorfloatAhip54287Abundance for HIP 54287phys.abundfloate_Ahip54287Uncertainty in HIP 54287 abundancestat.errorfloatAtoi248Abundance for TOI-248phys.abundfloate_Atoi248Uncertainty in TOI-248 abundancestat.errorfloatAtoi426Abundance for TOI-426phys.abundfloate_Atoi426Uncertainty in TOI-426 abundancestat.errorfloatAtoi479Abundance for TOI-479phys.abundfloate_Atoi479Uncertainty in TOI-479 abundancestat.errorfloatAtoi564Abundance for TOI-564phys.abundfloate_Atoi564Uncertainty in TOI-564 abundancestat.errorfloatAtoi652Abundance for TOI-652phys.abundfloate_Atoi652Uncertainty in TOI-652 abundancestat.errorfloatAtoi867Abundance for TOI-867phys.abundfloate_Atoi867Uncertainty in TOI-867 abundancestat.errorfloatAtoi1478Abundance for TOI-1478phys.abundfloate_Atoi1478Uncertainty in TOI-1478 abundancestat.errorfloatAtoi2447Abundance for TOI-2447phys.abundfloate_Atoi2447Uncertainty in TOI-2447 abundancestat.errorfloatAtoi2479Abundance for TOI-2479phys.abundfloate_Atoi2479Uncertainty in TOI-2479 abundancestat.errorfloatAtoi2518Abundance for TOI-2518phys.abundfloate_Atoi2518Uncertainty in TOI-2518 abundancestat.errorfloatAtoi2523Abundance for TOI-2523phys.abundfloate_Atoi2523Uncertainty in TOI-2523 abundancestat.errorfloatAtoi3359Abundance for TOI-3359phys.abundfloate_Atoi3359Uncertainty in TOI-3359 abundancestat.errorfloatAtoi4320Abundance for TOI-4320phys.abundfloate_Atoi4320Uncertainty in TOI-4320 abundancestat.errorfloat