J/other/NatAs/5.ivo://CDS.VizieR/J/other/NatAs/5.1163doi:10.26093/cds/vizier/dt/fkbbgdCDSSpina L.Sharma P.Melendez J.Bedell M.Casey A.R.Carlos M.,Franciosini E.Vallenari A.2026-03-04T20:03:13Z2023-08-30T17:15:59ZCDS support team

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

cds-question@unistra.frg-starschemical-abundancesvisible-astronomyStellar members of binary systems are formed from the same material, and therefore they should be chemically identical. However, recent studies have unveiled chemical differences between the two members of binary pairs composed of Sun-like stars. These chemically inhomogeneous binaries represent one of the most contradictory examples in stellar astrophysics and a source of tension between theory and observations. It is still unclear whether the abundance variations are the result of inhomogeneities in the protostellar gas clouds or are due to planet engulfment events that occurred after the stellar formation. The former scenario undermines the general belief that the chemical makeup of stars provides the fossil information of the environment in which they formed, whereas the second scenario would shed light on the possible evolutionary paths of planetary systems. Our study provides compelling evidence in favour of the planet engulfment scenario. We also establish that planet engulfment events occur in Sun-like stars with a 20-35% probability. Therefore, an important fraction of planetary systems undergo very dynamical evolutionary paths that critically modify their architectures, unlike our calm Solar System. This study opens the possibility of using chemical abundances of stars to identify which ones are the most likely to host Solar System analogues.2021NatAs...5.1163Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/NatAs/5.1163CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/NatAs/5.1163https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/other/NatAs/5.1163http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/other/NatAs/5.1163https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/other/NatAs/5.1163https://vizier.iucaa.in/viz-bin/votable?-source=J/other/NatAs/5.1163http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/other/NatAs/5.1163GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/other/NatAs/5.1163/tabled1 (Full binary pairs)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled1?https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled1?GETtext/xml+votable180.050000true117.026968150.22581140.005555555555555556Cone search capability for table J/other/NatAs/5.1163/tabled2 (HARPS sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled2?https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled2?GETtext/xml+votable180.050000true0.0404889-25.32480170.005555555555555556Cone search capability for table J/other/NatAs/5.1163/tabled3 (HARPS sample. Chemical abundances relative to the Sun)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled3?https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled3?GETtext/xml+votable180.050000true0.0404889-25.32480170.005555555555555556Cone search capability for table J/other/NatAs/5.1163/tabled4 (HARPS sample. Differential abundances within the pair)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/other/NatAs/5.1163/tabled4?https://vizier.iucaa.in/viz-bin/conesearch/J/other/NatAs/5.1163/tabled4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/other/NatAs/5.1163/tabled4?GETtext/xml+votable180.050000true286.5881703-10.7184850.0055555555555555566/75 513 548 1288 1560 1654 1692 1932 2284 3119 3133 3319 3398 4917 5230 5406 6496 6638 7240 8366 8614 8952 9173 10292 10954 11180 11267 12046 13702 13710 14207 14822 15174 16591 17441 17717 18229 18284 18647 18748 19725 22005 22526 22955 23319 23342 23366 23545 23872 24743 24825 25466 25500 25860 25898 25906 26224 26328 26379 26610 26844 26935 27130 27518 27646 27702 28245 28598 29196 29564 29838 30096 30195 33160 33238 33552 33930 34961 35106 35954 38065 38433 40293 40686 41631 42662 42796 42891 42903 43680 44228 44816 44887 45258 45893 45929 46384 47364 47463 48022 48078 48178 48915https://cdsarc.cds.unistra.fr/viz-bin/moc/J/other/NatAs/5.1163?format=asciiOpticaldefaultJ/other/NatAs/5.1163/tabled1Full binary pairsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStar1First star of the two stellar components of the binary systemmeta.id.part;meta.maincharStar2Second star of the two stellar components of the binary systemmeta.id.part;meta.maincharTeffAverage of effective yemperature derived for the two stars of the binary pairKphys.temperature.effective;stat.meanintD[Fe/H]Difference in effective temperature within the pairphys.temperature.effectivefloate_D[Fe/H]Uncertainty associated with D[Fe/H]stat.error;phys.abund.FefloatSourceReference from which data have been taken (1)meta.ref;pos.framecharHARPS[+] Indicates HARPS sample (tables D2-D4)meta.notechar_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/other/NatAs/5.1163/tabled2HARPS sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarName of the starmeta.id;meta.maincharRAdegRight ascension (J2000)degpos.eq.raDEdegDeclination (J2000)degpos.eq.decTeffEffective temperatureKphys.temperature.effectiveinte_TeffEffective temperature errorKstat.error;phys.temperature.effectiveintloggSurface gravitylog(cm.s**-2)phys.gravityfloate_loggSurface gravity errorlog(cm.s**-2)stat.errorfloat[Fe/H]Metallicityphys.abund.Zfloate_[Fe/H]Metallicity errorstat.error;phys.abund.FefloatvtMicroturbulence velocitykm/sphys.veloc.microTurbfloate_vtMicroturbulence velocity errorkm/sstat.errorfloatGaiaGaia source_idmeta.idplxGaia parallaxmaspos.parallax.trigfloate_plxGaia parallax errormasstat.error;pos.parallaxfloatpmRAGaia proper motion along RA, pmRA*cosDEmas/yrpos.pm;pos.eq.radoublee_pmRAGaia proper motion along RA, pmRA*cosDE errormas/yrstat.error;pos.pm;pos.eq.rafloatpmDEGaia proper motion along DEmas/yrpos.pm;pos.eq.decdoublee_pmDEGaia proper motion along DE errormas/yrstat.error;pos.pm;pos.eq.decfloat_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/other/NatAs/5.1163/tabled3HARPS sample. Chemical abundances relative to the SunSimbadNameSimbad column added by the CDSmeta.idcharnullablee_[YII]Abundance [YII] errorstat.errorfloato_[YII]Number of absorption lines used for [YII]meta.numberintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarName of the starmeta.id;meta.mainchar[CI]Abundance [CI]phys.abundfloate_[CI]Abundance [CI] errorstat.errorfloato_[CI]Number of absorption lines used for [CI]meta.numberint[NaI]Abundance [NaI]phys.abundfloate_[NaI]Abundance [NaI] errorstat.errorfloato_[NaI]Number of absorption lines used for [NaI]meta.numberint[MgI]Abundance [MgI]phys.abundfloate_[MgI]Abundance [MgI] errorstat.errorfloato_[MgI]Number of absorption lines used for [MgI]meta.numberint[AlI]? Abundance [AlI]phys.abundfloatnullablee_[AlI]? Abundance [AlI] errorstat.errorfloatnullableo_[AlI]? Number of absorption lines used for [AlI]meta.numberintnullable[SiI]Abundance [SiI]phys.abundfloate_[SiI]Abundance [SiI] errorstat.errorfloato_[SiI]Number of absorption lines used for [SiI]meta.numberint[SI]Abundance [SI]phys.abundfloate_[SI]Abundance [SI] errorstat.errorfloato_[SI]Number of absorption lines used for [SI]meta.numberint[CaI]Abundance [CaI]phys.abundfloate_[CaI]Abundance [CaI] errorstat.errorfloato_[CaI]Number of absorption lines used for [CaI]meta.numberint[ScII]Abundance [ScII]phys.abundfloate_[ScII]Abundance [ScII] errorstat.errorfloato_[ScII]Number of absorption lines used for [ScII]meta.numberint[TiI]Abundance [TiI]phys.abundfloate_[TiI]Abundance [TiI] errorstat.errorfloato_[TiI]Number of absorption lines used for [TiI]meta.numberint[TiII]Abundance [TiII]phys.abundfloate_[TiII]Abundance [TiII] errorstat.errorfloato_[TiII]Number of absorption lines used for [TiII]meta.numberint[VI]Abundance [VI]phys.abundfloate_[VI]Abundance [VI] errorstat.errorfloato_[VI]Number of absorption lines used for [VI]meta.numberint[CrI]Abundance [CrI]phys.abundfloate_[CrI]Abundance [CrI] errorstat.errorfloato_[CrI]Number of absorption lines used for [CrI]meta.numberint[CrII]Abundance [CrII]phys.abundfloate_[CrII]Abundance [CrII] errorstat.errorfloato_[CrII]Number of absorption lines used for [CrII]meta.numberint[MnI]Abundance [MnI]phys.abundfloate_[MnI]Abundance [MnI] errorstat.errorfloato_[MnI]Number of absorption lines used for [MnI]meta.numberint[FeI]Abundance [FeI]phys.abundfloate_[FeI]Abundance [FeI] errorstat.errorfloato_[FeI]Number of absorption lines used for [FeI]meta.numberint[FeII]Abundance [FeII]phys.abundfloate_[FeII]Abundance [FeII] errorstat.errorfloato_[FeII]Number of absorption lines used for [FeII]meta.numberint[CoI]Abundance [CoI]phys.abundfloate_[CoI]Abundance [CoI] errorstat.errorfloato_[CoI]Number of absorption lines used for [CoI]meta.numberint[NiI]Abundance [NiI]phys.abundfloate_[NiI]Abundance [NiI] errorstat.errorfloato_[NiI]Number of absorption lines used for [NiI]meta.numberint[CuI]Abundance [CuI]phys.abundfloate_[CuI]Abundance [CuI] errorstat.errorfloato_[CuI]Number of absorption lines used for [CuI]meta.numberint[ZnI]Abundance [ZnI]phys.abundfloate_[ZnI]Abundance [ZnI] errorstat.errorfloato_[ZnI]Number of absorption lines used for [ZnI]meta.numberint[SrI]Abundance [SrI]phys.abundfloate_[SrI]Abundance [SrI] errorstat.errorfloato_[SrI]Number of absorption lines used for [SrI]meta.numberint[YII]Abundance [YII]phys.abundfloat[BaII]Abundance [BaII]phys.abundfloate_[BaII]Abundance [BaII] errorstat.errorfloato_[BaII]Number of absorption lines used for [BaII]meta.numberint_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/other/NatAs/5.1163/tabled4HARPS sample. Differential abundances within the pairSimbadNameSimbad column added by the CDSmeta.idcharnullable[FeI]Abundance [FeI]phys.abundfloat[CoI]Abundance [CoI]phys.abundfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStar1First star of the two stellar components of the binary systemmeta.id.part;meta.maincharStar2Second star of the two stellar components of the binary systemmeta.id.part;meta.mainchar[CI]Abundance [CI]phys.abundfloate_[CI]Abundance [CI] errorstat.errorfloato_[CI]Number of absorption lines used for [CI]meta.numberint[NaI]Abundance [NaI]phys.abundfloate_[NaI]Abundance [NaI] errorstat.errorfloato_[NaI]Number of absorption lines used for [NaI]meta.numberint[MgI]Abundance [MgI]phys.abundfloate_[MgI]Abundance [MgI] errorstat.errorfloato_[MgI]Number of absorption lines used for [MgI]meta.numberint[AlI]Abundance [AlI]phys.abundfloate_[AlI]Abundance [AlI] errorstat.errorfloato_[AlI]Number of absorption lines used for [AlI]meta.numberint[SiI]Abundance [SiI]phys.abundfloate_[SiI]Abundance [SiI] errorstat.errorfloato_[SiI]Number of absorption lines used for [SiI]meta.numberint[SI]Abundance [SI]phys.abundfloate_[SI]Abundance [SI] errorstat.errorfloato_[SI]Number of absorption lines used for [SI]meta.numberinte_[CaI]Abundance [CaI] errorstat.errorfloato_[CaI]Number of absorption lines used for [CaI]meta.numberint[ScII]Abundance [ScII]phys.abundfloate_[ScII]Abundance [ScII] errorstat.errorfloato_[ScII]Number of absorption lines used for [ScII]meta.numberint[TiI]Abundance [TiI]phys.abundfloate_[TiI]Abundance [TiI] errorstat.errorfloato_[TiI]Number of absorption lines used for [TiI]meta.numberint[TiII]Abundance [TiII]phys.abundfloate_[TiII]Abundance [TiII] errorstat.errorfloato_[TiII]Number of absorption lines used for [TiII]meta.numberint[VI]Abundance [VI]phys.abundfloate_[VI]Abundance [VI] errorstat.errorfloato_[VI]Number of absorption lines used for [VI]meta.numberint[CrI]Abundance [CrI]phys.abundfloate_[CrI]Abundance [CrI] errorstat.errorfloato_[CrI]Number of absorption lines used for [CrI]meta.numberint[CrII]Abundance [CrII]phys.abundfloate_[CrII]Abundance [CrII] errorstat.errorfloato_[CrII]Number of absorption lines used for [CrII]meta.numberint[MnI]Abundance [MnI]phys.abundfloate_[MnI]Abundance [MnI] errorstat.errorfloato_[MnI]Number of absorption lines used for [MnI]meta.numberinte_[FeI]Abundance [FeI] errorstat.errorfloato_[FeI]Number of absorption lines used for [FeI]meta.numberint[FeII]Abundance [FeII]phys.abundfloate_[FeII]Abundance [FeII] errorstat.errorfloato_[FeII]Number of absorption lines used for [FeII]meta.numberinte_[CoI]Abundance [CoI] errorstat.errorfloato_[CoI]Number of absorption lines used for [CoI]meta.numberint[NiI]Abundance [NiI]phys.abundfloate_[NiI]Abundance [NiI] errorstat.errorfloato_[NiI]Number of absorption lines used for [NiI]meta.numberint[CuI]Abundance [CuI]phys.abundfloate_[CuI]Abundance [CuI] errorstat.errorfloato_[CuI]Number of absorption lines used for [CuI]meta.numberint[ZnI]Abundance [ZnI]phys.abundfloate_[ZnI]Abundance [ZnI] errorstat.errorfloato_[ZnI]Number of absorption lines used for [ZnI]meta.numberint[YII]Abundance [YII]phys.abundfloate_[YII]Abundance [YII] errorstat.errorfloato_[YII]Number of absorption lines used for [YII]meta.numberint[BaII]Abundance [BaII]phys.abundfloate_[BaII]Abundance [BaII] errorstat.errorfloato_[BaII]Number of absorption lines used for [BaII]meta.numberint_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[CaI]Abundance [CaI]phys.abundfloat