J/A+A/670/A102ivo://CDS.VizieR/J/A+A/670/A102doi:10.26093/cds/vizier.36700102CDSGonzalez-Payo J.Caballero J.A.Cortes-Contreras M.2024-11-28T20:01:57Z2023-02-14T09:19:06ZCDS support team

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

cds-question@unistra.frmultiple-starsphotometryvisible-astronomystellar-distancestellar-massesWith the latest Gaia DR3 data, we analyse the widest pairs in the Washington Double Star (WDS) catalogue with angular separations, {rho}, greater than 1000 arcsec. We confirmed the pairs' membership to stellar systems based on common proper motions, parallaxes, and (when available) radial velocities, together with the locii of the individual components in colour-magnitude diagrams. We also looked for additional closer companions to the ultrawide pairs, either reported by WDS or found by us with a new Gaia astrometric search. In addition, we determined masses for each star (and white dwarf) and, with the projected physical separation, computed the gravitational potential energy, |U_g_^*^|, of the systems. Of the 155 159 pairs currently catalogued by WDS, there are 504 with {rho}>1000-arcsec. Of these, only 2 ultrawide pairs have not been identified, 10 do not have any available astrometry, 339 have not passed a conservative filtering in proper motion or parallax, 59 are members of young stellar kinematic groups, associations or open clusters, and only 94 remain as bona fide ultrawide pairs in the galactic field. Accounting for the additional members at shorter separations identified in a complementary astrometric and bibliographic search, we found 79 new stars (39 reported, plus 40 not reported by WDS) in 94 ultrawide stellar systems. This sample is expanded when including new close binary candidates with large Gaia DR3 RUWE, sigma_Vr_, or a proper motion anomaly. Furthermore, the large fraction of subsystems and the non-hierarchical configurations of many wide systems with three or more stars is remarkable. In particular, we found 14 quadruple, 2 quintuple, 3 sextuple, and 2 septuple systems. The minimum computed binding energies, |U_g_^*^|~10^33^J, are in line with theoretical predictions of tidal destruction by the Galactic gravitational potential. The most fragile and massive systems have huge projected physical separations of well over 1pc. Therefore, they are either in the process of disruption or they are part of unidentified juvenile stellar kinematic groups.2023A&A...670A.102Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/670/A102CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/583/A85 : Binaries in beta Pic moving group (Alonso-Floriano+, 2015)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/670/A102https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/670/A102http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/670/A102https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/670/A102https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/670/A102http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/670/A102GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/670/A102/tableb1 (Stars in young stellar kinematic groups)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/670/A102/tableb1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/670/A102/tableb1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/670/A102/tableb1?GETtext/xml+votable180.050000true1.741375-64.61505560.005555555555555556Cone search capability for table J/A+A/670/A102/tableb2 (Basic data of the 94 galactic field systems)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/670/A102/tableb2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/670/A102/tableb2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/670/A102/tableb2?GETtext/xml+votable180.050000true0.4037083-1.02894440.005555555555555556Cone search capability for table J/A+A/670/A102/tableb4 (Candidate stars to be part of the gam Cas association, in order of the distance to the central star gam Cas)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/670/A102/tableb4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/670/A102/tableb4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/670/A102/tableb4?GETtext/xml+votable180.050000true14.177208360.716750.0055555555555555565/757-758 928-930 5884 5886 9321 10792 6/41 46 161 247 334-335 344 357-358 2923 2927 2930 2937-2938 2942 2973 2997-2998 3005 3009 3011-3014 3017-3022 3025 3027 3037 3039-3040 3042-3046 3052-3053 3056-3057 3059 3061 3063 3065 3068 3616-3617 3620 3622-3623 3626-3627 3629-3630 3641-3643 3725-3730 3737-3738 3744-3745 3748 4403 5317 5327 5494 5500 5587 5590 5770 6326 6498 6504 6714-6715 6718 7019 7022 7033 7036 8208 8496 8545 8556 9074 9481 9713 9868 9970 10243 10252 10276 10290 10292 10298 10632 10634 11101 11109 11120 11126 11128 11137 11145 11163 11165 11170 11176 11204 11208 11402 11424 11426 11469-11471 11482 12131 12137 12839 12844 13066 13072 13122-13123 13310-13311 13346-13347 14165-14166 14263 15162 15233 15591 15598 15692 15715 15946 15948 15960 16323 16326 16740 16742 16993 17017 17405 17748 17752 17767 17783 17863 18133 18135 18367 18500 18651 19309 19320 19740 20657-20658 21437 21480 21519 23001 23003 23006-23007 23095 23098 23515 23525-23527 23532-23533 23690 25863 25869 25978 26060 26489 26494 27124 27347 27350 27765 27875 27881 27906-27907 27936 28011 28100 28108 28112 28118 28122-28123 28125 28127 28133 28144 28150 28268-28269 30097 30100 30130 30464 30899 30914 31181 31285 31365 31378 31874 32004 32013 32031 32072 33443 33446 33455-33456 33464 33467 33470 33529 33533 33704 33706-33707 34491 34493 34495 34536 34584 34586 34818-34819 34822-34823 34825 34827 34829-34830 34834 34840 34843 34857 34866 34885-34886 34896 35025 35077 35109 35122 35128 35165 35217 35253 35441 35444 35857 35860-35862 36948 36951 37120 37125 37136-37137 37292 37298 37304 37566 37607 37616 37618 37772 37779-37780 37796 37805 37816 37959 37968-37970 38720 38746 38932 39026-39027 39534-39535 39883 39904 39918 40082-40083 40199 40833 40870 41123 41128-41130 41472 41474 41480 41505 41591 41641 41643-41644 41763 41969 42745 43009 43146-43147 43150 43172 43533 44100 44669 44833 45295 45301-45302 45307 45310 45471 45492 45503 45510 45538 45544 45551 45620 45622 45808-45809 45852 45894 46081-46082 46084 46111 46155 46893 46925 46939 46979 47061 47313 47317 47758 47780 47782 48128 48262-48263 48268 48274 48882-48883 48992 489941.5062136169708525e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/670/A102?format=asciiOpticaldefaultJ/A+A/670/A102/tableb1Stars in young stellar kinematic groupsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the star as registered in Simbadmeta.id;meta.maincharDiscDiscoverer codes in WDS catalogue (1)meta.idcharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainGmag? G-band mean magnitude from Gaia DR3 (Blank if not available in Gaia DR3)magphot.mag;em.optfloatnullableGroupGroup where the star is located (2)meta.idcharr_GroupReference(s) for Groupmeta.ref;pos.framecharJ/A+A/670/A102/tableb2Basic data of the 94 galactic field systemsSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS name (HHMMm+DDMM)meta.idcharDiscWDS Discoverer code (formed by the current and the first star of the system)meta.idcharMultMultiplicity order of the systemmeta.code.multip;pos.framecharType(Double, triple)src.classcharStarName of the star as registered in Simbadmeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainl_Dist[~] Limit flag on Distmeta.code.errorcharDistDistancepcpos.distancefloate_Dist? Distance errorpcstat.errorfloatnullableGmag? G-band mean magnitude from Gaia DR3 (1)magphot.mag;em.optfloatnullableRUWE>10[Yes/No ] The star has a RUWE parameter bigger than 10meta.codecharpmanom[Yes/No ] The star has a pm anomaly (2)meta.codecharLsigmaVr[Yes/No ] The star has a large sigma_Vr for its G magnitudemeta.codecharRemRemarks about the starmeta.notecharJ/A+A/670/A102/tableb3Masses, rho, theta, separations and gravitational binding energy of the systems identified in the workDiscWDS Discoverer code (formed by the current and the first star of the system)meta.idcharIdNumber of star inside the system (ordered by decreasing bright in G)meta.numberchare_Sep? Separation error in 1000au between the current and the first star of the system1000AUstat.errordoublenullableE? Gravitational binding energy of the whole system ("---" if not available)1e+33Jphys.energyfloatnullablee_E? Gravitational binding energy error of the whole system1e+33Jstat.errorfloatnullableRemSome remarks of the datameta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintWDSWDS name (HHMMm+DDMM)meta.idcharMultMultiplicity order of the systemmeta.code.multip;pos.framecharStarName of the star as registered in Simbadmeta.id;meta.maincharMassMass of the starsolMassphys.massfloate_MassMass error of the starsolMassstat.error;phys.massfloatrho? Physical projected separation between the current and the first star of the systemarcsecpos.angDistance;src.orbitalfloatnullabletheta? Position angle respect of the first star of the systemdegpos.posAngfloatnullableSep? Separation in 1000au between the current and the first star of the system1000AUpos.angDistancedoublenullableJ/A+A/670/A102/tableb4Candidate stars to be part of the gam Cas association, in order of the distance to the central star gam CasRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarName of the star as registered in Simbadmeta.id;meta.maincharDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral type according to Simbadsrc.spTypecharl_Mass[~] Limit flag on Massmeta.code.error;phys.masscharMass? Mass of the starsolMassphys.massfloatnullablee_Mass? Mass error of the starsolMassstat.error;phys.massfloatnullableGmag? G-band mean magnitude from Gaia DR3magphot.mag;em.optfloatnullableJmagJ-band mean magnitude from 2MASSmagphot.mag;em.IR.JfloatDistProjected physical separation from gam Casdegpos.angDistancefloatRemSome remarks about the starmeta.notechar