J/A+A/686/A225ivo://CDS.VizieR/J/A+A/686/A225doi:10.26093/cds/vizier.36860225CDSIshchenko M.Kovaleva D.A.Berczik P.Kharchenko N.V.Piskunov A.E.,Polyachenko E.Postnikova E.Just A.Borodina O.Omarov C.Sobodar O.2024-11-29T20:03:05Z2024-06-14T10:54:44ZCDS support team

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

cds-question@unistra.fropen-star-clustersproper-motionsvisible-astronomytrigonometric-parallaxphotometryIn a previous paper using Gaia DR2 data, we demonstrated that the two closely situated open clusters Collinder 135 and UBC 7 might have formed together about 50Myr ago. In this work, we performed star-by-star dynamical modelling of the evolution of the open clusters Collinder 135 and UBC 7 from their supposed initial state to their present-day state, reproducing observational distributions of members. Modelling of the Collinder 135 and UBC 7 dynamical evolution was done using the high-order parallel N-body code phi-GPU with up-to-date stellar evolution. Membership and characteristics of the clusters were acquired based on Gaia DR3 data. The comparison of the present-day radial cumulative star count obtained from the N-body simulations with the current observational data gave us full consistency of the model with observational data, especially in the central 8 pc, where 80% of the stars reside. The proper motion velocity components obtained from the N-body simulations of the stars are also quite consistent with the observed distributions and error bars. These results show that our numerical modelling is able to reproduce the open clusters' current complex 6D observed phase-space distributions with a high level of confidence. Thus, the model demonstrates that the hypothesis of a common origin of Collinder 135 and UBC 7 complies with present-day observational data.2024A&A...686A.225Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/686/A225CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/686/A225https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/686/A225http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/686/A225https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/686/A225https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/686/A225http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/686/A225GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/686/A225/members (List of sources selected as members to the system of Collinder 135 and UBC 7)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/686/A225/members?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/686/A225/members?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/686/A225/members?GETtext/xml+votable180.050000true104.77856553692-26.348204146350.0055555555555555564/2458 2471 2480 2482 2488 5/9759 9781 9783 9788-9789 9791 9802-9803 9825 9827 9836 9838 9877-9879 9906 9909 9911 9917 9924 9932 9934 9956 9958 9960-9961 6/20740-20741 20753 39030-39031 39033 39035 39121-39123 39129-39131 39160-39161 39163 39175 39178 39181-39182 39192 39200 39202-39204 39206-39207 39216-39217 39219 39224-39226 39296-39297 39299 39304 39306-39307 39312 39314-39316 39318 39321-39324 39348 39350 39357 39479 39487 39493 39495 39501 39504-39505 39520 39524-39526 39528-39529 39534-39535 39573 39581 39583 39617 39619-39620 39630-39633 39635 39641 39643 39667 39673 39676-39677 39701 39703-39704 39706 39708-39709 39734-39735 39742 39828 39830-39831 39836 39838 39848-39849 39851-39852 39854-39856 39858-39860 39862 39864-39866 398681.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/686/A225?format=asciiOpticaldefaultJ/A+A/686/A225/membersList of sources selected as members to the system of Collinder 135 and UBC 7_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.raindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 source_idmeta.id;meta.mainGLONGalactic longitude (J2000.0)degpos.galactic.lonGLATGalactic latitude (J2000.0)degpos.galactic.latplxcorrTrigonometric parallax (1)maspos.parallax.trigdoublee_plxcorrGaia DR3 error of trigonometric parallaxmasstat.errordoublepmlProper motion in Galactic longitude (J2000.0) (2)mas/yrpos.pmdoublepmbProper motion in Galactic latitude (J2000.0) (2)mas/yrpos.pmdoubleGmagGaia DR3 stellar magnitude in G bandmagphot.mag;em.optdoubleBpmagGaia DR3 stellar magnitude in Bp bandmagphot.mag;em.opt.BdoubleRpmagGaia DR3 stellar magnitude in Rp bandmagphot.mag;em.opt.RdoublePmembMembership probability (3)stat.probabilityfloatFlag[0/2] Flag of affiliation (4)meta.code.errorint