J/MNRAS/494/2268ivo://CDS.VizieR/J/MNRAS/494/2268doi:10.26093/cds/vizier.74942268CDSWebb J.J.Price-Jones N.Bovy J.Portegies Zwart S.Hunt J.A.S.,Mackereth J.T.Leung H.W.2025-06-24T20:16:16Z2023-07-28T14:31:25ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyastrometrystellar-distanceproper-motionsradial-velocitymetallicitychemically-peculiar-starsvisible-astronomyWe make use of APOGEE and Gaia data to identify stars that are consistent with being born in the same association or star cluster as the Sun. We limit our analysis to stars that match solar abundances within their uncertainties, as they could have formed from the same giant molecular cloud (GMC) as the Sun. We constrain the range of orbital actions that solar siblings can have with a suite of simulations of solar birth clusters evolved in static and time-dependent tidal fields. The static components of each galaxy model are the bulge, disc, and halo, while the various time-dependent components include a bar, spiral arms, and GMCs. In galaxy models without GMCs, simulated solar siblings all have J_R_<122kpc.km/s, 990<L_z_<1986kpc.km/s, and 0.15<J_z_<0.58kpc.km/s. Given the actions of stars in APOGEE and Gaia, we find 104 stars that fall within this range. One candidate in particular, Solar Sibling 1, has both chemistry and actions similar enough to the solar values that strong interactions with the bar or spiral arms are not required for it to be dynamically associated with the Sun. Adding GMCs to the potential can eject solar siblings out of the plane of the disc and increase their J_z_, resulting in a final candidate list of 296 stars. The entire suite of simulations indicate that solar siblings should have J_R_<122kpc.km/s, 353<L_z_<2110kpc.km/s, and J_z_<0.8kpc.km/s. Given these criteria, it is most likely that the association or cluster that the Sun was born in has reached dissolution and is not the commonly cited open cluster M67.2020MNRAS.494.2268Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/494/2268CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/284 : APOGEE-2 data from DR16 (Johnsson+, 2020)I/345 : Gaia DR2 (Gaia Collaboration, 2018)II/246 : 2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/494/2268https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/494/2268http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/494/2268https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/494/2268https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/494/2268http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/494/2268GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/494/2268/catalog (List of 296 solar sibling candidates)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/494/2268/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/494/2268/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/494/2268/catalog?GETtext/xml+votable180.050000true7.97458.0830.0055555555555555565/3588-3589 3846 6/339 857 1144 1150 1219 1231 1279 1322 1334-1335 1475 1608 1776-1777 1779 1783 1792 1808 1922 2429 2940 2970 2996 3004 3028 3040 3045 3065 3159 3164 3178 3196 3239 3279 3305 3593 3596 3611-3613 3629 3631 3641 3716 3720-3721 3724 3737 12986-12987 13310 13931 13994 14004 14014 14079 14173 14175 14197 14220 14245 14250 14259 14265-14266 14276 14281 14289 14298 14301 14303 14306 14321 14325 14401 14406-14409 14412-14414 14419 14422 14424 14428 14456 14577 14619-14620 14641 14644 14666 14668 14671 14677 14680 14692 14705 14734 14744 14756 14770 14772 15169 15171 15379 15382 15388-15389 15425-15427 15431-15433 15436-15438 15442 15446-15447 15449 15453 15618 15621 15632 20806 20860 21555 22022 22025 22038 22040 22043 22058 22065 22068 22075 22078-22079 22131 22165 22208 22253 23625 23643 23657 23661 23668 23733 23810 23816 23866 24327 24329 24333 24359 24376 24418 24450 24458 24489 24514 28813 28826 28859 28872 28895 28908-28910 29093 29117 29160-29161 29178 29461 29469 29504 29506 29511 29515-29517 29522 29526 29528 29531 29540 29553-29554 29558 30244 30262 30268 30313 30316 30401 30404 30419 30421-30422 30644-30645 30692-30694 30701 30713 30716 30718 40617https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/494/2268?format=asciiOpticaldefaultJ/MNRAS/494/2268/catalogList of 296 solar sibling candidatesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDInternal identifier (SolarSiblingNNN)meta.idcharNameStar name (2MHHMMSSss+DDMMSSs)meta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainDistDistancekpcpos.distancefloate_DistError on Distkpcstat.errorfloatpmRAProper motion in right ascensionmas/yrpos.pm;pos.eq.rafloate_pmRAError on pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEProper motion in declinationmas/yrpos.pm;pos.eq.decfloate_pmDEError on pmDEmas/yrstat.error;pos.pm;pos.eq.decfloatvLOSLine of sight velocitykm/sphys.veloc;pos.heliocentricdoublee_vLOSError on vLOSkm/sstat.errorfloatJrRadial component of the action J_r_kpc.km/sarith.grad;phys.velocfloatJphiRotational component of the action J_phi_kpc.km/sarith.grad;phys.velocdoubleJzVertical component of the action J_z_kpc.km/sarith.grad;phys.velocfloat[Fe/H]Fe/H abundance ratiophys.abund.Fe;arith.ratiofloate_[Fe/H]Error on [Fe/H]stat.error;phys.abund.Fefloat[Mg/Fe]Mg/Fe abundance ratiophys.abundfloate_[Mg/Fe]Error on [Mg/Fe]stat.error;phys.abundfloat[Al/Fe]Al/Fe abundance ratiophys.abundfloate_[Al/Fe]Error on [Al/Fe]stat.error;phys.abundfloat[Si/Fe]Si/Fe abundance ratiophys.abundfloate_[Si/Fe]Error on [Si/Fe]stat.error;phys.abundfloat[K/Fe]K/Fe abundance ratiophys.abundfloate_[K/Fe]Error on [K/Fe]stat.error;phys.abundfloat[Ca/Fe]Ca/Fe abundance ratiophys.abundfloate_[Ca/Fe]Error on [Ca/Fe]stat.error;phys.abundfloat[Ni/Fe]Ni/Fe abundance ratiophys.abundfloate_[Ni/Fe]Error on [Ni/Fe]stat.error;phys.abundfloatGroup[2/3] Solar sibling group (1)meta.codeintSimbadNameSimbad column added by the CDSmeta.idcharnullable