J/A+A/679/A105ivo://CDS.VizieR/J/A+A/679/A105doi:10.26093/cds/vizier/bc-n7/lbafCDSVaher E.Hobbs D.McMillan P.Prusti T.2026-07-01T14:01:07Z2023-11-22T10:00:28ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyopen-star-clustersvisible-astronomyStars tend to form in clusters, but many escape their birth clusters very early. Identifying the escaped members of clusters can inform us about the dissolution of star clusters, but also about the stellar dynamics in the galaxy. Methods capable of finding escaped stars from many clusters are required to fully exploit the large amounts of data in the Gaia era. We present a new method of identifying escaped members of nearby clusters and apply it to ten young clusters. We assumed the escaped stars were close to the cluster in the past and performed traceback computations based on the Gaia DR3 radial velocity subsample. For each individual star, our method produces a probability estimate that it is an escaped member of a cluster, and for each cluster it also estimates the field star contamination rate of the identified fugitives. Our method is capable of finding fugitives that have escaped from their cluster in the last few ten million years. In many cases the fugitives form an elongated structure that covers a large volume. The results presented here show that traceback computations using Gaia DR3 data can identify stars that have recently escaped their cluster. Our method will be even more useful when applied to future Gaia data releases that contain more radial velocity measurements.2023A&A...679A.105Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/679/A105CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/355 : Gaia DR3 (Gaia Collaboration 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/679/A105https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/679/A105http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/679/A105https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/679/A105https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/679/A105http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/679/A105GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/679/A105/table4 (All stars with positive fugitive probabilities)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/679/A105/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/679/A105/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/679/A105/table4?GETtext/xml+votable180.050000true263.782867017708840.52364124942460.0055555555555555564/28 110 5/90-91 116 118 121 124 126 209 446 773 775 784 788 3503 3514-3515 3519 3845 4122 9307 9310 9374 9393 9396 9398-9399 9404-9405 9407 9441 9447 9450 9452 9454 9634-9635 9640 9749 9793 9795 9797-9798 9803-9804 9825 9827 9833 9835 9838 9921 9924 6/211 273 304 319 329 352-353 359 368-369 373 378 382-383 403 414 423 437 439 444 446-447 471 476 478-481 483 489 492-494 500 509-511 603 790-791 793 799 807 823 832 845 850 852 867 877 879 884 887 931 961 968 972 977 980 982-983 985 988 990 1002 1004-1005 1009 1011 1013 1015-1016 1019 1021 1023 1082 1117 1140 1161-1162 1177 1184 1197 1207 1214 1219 1225 1229 1239 1244 1255-1256 1264 1267 1272 1282-1283 1293 1315 1323 1388 1410 1419 1422 1442 1445 1449 1454 1473 1512 1540-1541 1544 1546-1549 1555 1559-1560 1562 1570-1571 1574-1575 1584 1593 1602-1603 1606 1611-1612 1623 1628-1630 1635-1636 1646-1647 1649 1651 1658 1668 1674 1683 1686 1693 1695 1710 1716-1717 1719 1722 1724 1726-1727 1730-1732 1734-1735 1737-1740 1742-1743 1745-1747 1749 1751-1752 1756-1757 1776 1778-1780 1783 1788-1789 1795 1797 1800-1801 1809 1828-1829 1831 1838 1847 1931 1934-1935 1958 1961 1966 2373-2374 2379 2383 2386 2396 2418 2426 2443 2454 2505 2515-2516 2526 2535 2539 2543 2550 2554 2675 2742 2779 2781 2804 2828 2831 2859 2861-2862 2877 2879 2895 2897 2902 2904 2906 2908 2911 2915 2917 2919 2922 2924 2930 2933 2938 2941 2965 2985 2987-2988 2997 2999 3015 3021 3025 3031 3045 3047 3061 3072 3077 3089 3091 3097 3099 3106 3112-3113 3116-3118 3120-3121 3127 3130-3131 3134-3135 3140-3142 3144-3145 3148 3150 3159 3169 3171-3173 3176 3179-3180 3182-3183 3188 3192 3198 3203 3205 3207-3210 3213 3215 3217 3220-3221 3224-3226 3231 3233 3236 3241 3248 3252-3253 3255-3256 3259 3264 3267-3270 3281 3283 3285 3290-3291 3296-3297 3303 3305 3331 3460 3584 3588 3590 3597 3600 3603 3609 3615 3625 3637 3644 3649 3656 3681 3685 3724 3727 3741 3745 3749 9550 12617 13158 13169 13237 13260 13286 13534 13565 13575 13684 13769 13782 13786 13802-13803 13805 13884 13916 13918 13921 13936 13944 13957 13976 13986 13995 13999 14010-14011 14017 14027 14032 14046 14050-14051 14054-14055 14064 14066 14068 14070 14072-14074 14094 14100 14107 14111 14115 14118 14127-14128 14137 14161-14162 14169 14179 14181 14186 14189-14191 14194-14195 14197-14198 14200-14201 14207 14220 14228 14232 14238 14241-14242 14244 14246 14252 14255-14256 14259-14260 14272 14277 14283 14292 14294 14304 14313 14320 14322 14324 14593 14596 14609 14612 14615 14620-14621 14657 14660 14663 14665 14672 14676-14677 14679-14681 15361 15364-15365 15369-15373 15377 15384-15385 15389-15390 15398-15399 15401 15408 15420 15424 15426-15429 15431 15435 15437-15438 15444-15446 15448-15449 15451 15456-15457 15462 15476 15515 15630 15639 15644 15683 15688 16404 16435 16437 16444-16445 16447 16452 16462 16465 16483 16486 16492 16494 16526 16533 16535 16541 16543 16571 16576-16577 16579 16582 16584-16585 16608 16616 16901 16918 16925 16945 16952 16963 17044 17893 18583 19371 19737 19910 20452 20589 20615 20686 20704 20813 20819 20825 20838 20845 20850 20929 20972 20999 21008 21014 21031 21114 21168 21210 21222 21342 21357 21373 21386 21547 21574 22154 22193 22205 22266 22619 22628 22644 22769 22784 22965 23027 23129 23136 23373 23389 23427 23474 23477-23478 23521 23532 23536 23554 23600 23608 23682 23699-23700 23724 23734 23754 23795 23803 24143 24146 24152 24171 24177 24204 24277-24279 24317 24320 24344 24360 24480-24481 24494 30630 32848 32914 33244 33756 33863 33904-33906 34016 34018 34264 34346 34349 34385 34432 34434 35107 35141-35142 35234-35235 35392 35438 35465 35501 35533-35534 36322 36618 36866 36992 36994 37007 37021 37044 37049 37052-37053 37074 37078 37087 37096 37099 37107 37114 37135 37149 37160 37167 37177 37179 37181-37183 37199 37210-37211 37213-37215 37218-37221 37223 37225 37227 37233-37235 37238-37239 37244 37246 37248 37250 37261 37263 37267-37269 37271-37273 37276 37285 37289 37297 37301-37303 37305 37312-37313 37315-37318 37320-37321 37325 37327-37330 37335-37336 37338 37343-37344 37349 37357-37358 37368 37373 37396 37406 37429 37431 37436 37440 37446 37451-37453 37455 37457 37459 37464 37466 37468 37470-37471 37476 37478-37479 37483 37485-37490 37495 37502 37577-37578 37581 37583 37588-37590 37601 37603-37606 37611 37615 37624-37625 37635 37643 37657 37659 37662-37663 37665 37668 37670-37672 37675-37677 37679 37683 37687 37689-37690 37693 37695 37704 37709 37711 37716-37717 37724 37732 37739 37743 37748 37752 37762-37763 37771 37773 37775 37779-37782 37784-37785 37787 37793-37794 37796 37798-37799 37805 37807 37812-37813 37815 37821 37825 37827 37834 37837-37838 37841 37850 37853 37856 37858-37859 37864 37866-37867 37872 37876 37878-37879 37881 37885-37887 37889-37890 37892 37896-37898 37902 37920 37922 37924 37931 37934 37956 37978 38017 38019 38022 38025 38037 38042-38043 38055 38067 38070 38084 38089 38120 38178 38189 38225 38261 38289 38400 38404-38405 38424 38428 38432 38439 38448 38455 38458 38461 38463 38472-38473 38494 38497-38498 38504 38506 38508 38524 38528-38529 38531-38532 38534-38535 38544 38547 38549-38550 38552-38553 38555 38564 38566-38568 38571 38576 38583 38588 38593 38598 38625 38662 38665 38942 38990-38993 39004 39006-39007 39023-39025 39027-39030 39121 39123 39127 39129 39131 39145 39156-39157 39165 39167-39168 39177-39179 39184 39186-39187 39197-39198 39201 39203-39205 39208 39210 39222 39224 39226-39227 39246 39248-39249 39251-39253 39260 39268 39275 39278 39297-39299 39305-39307 39313-39314 39316 39318 39321-39324 39327 39329 39336 39344 39346-39348 39350 39358-39359 39364 39382 39388 39390 39392 39394 39402 39412 39492 39533 39541 39680 39683 39690 39692 39700-39702 39705-39706 39708 39711 39718 39727 39733 39735 39741 39754-39756 39758 39760 39767-39769 39772-39773 39776-39778 39780 39782 39784-39785 39792 39802 39824-39825 39837 39861 39868-39869 39872 39874-39876 39880-39881 39884 39886 39896-39897 39906 39909 39913-39914 39916 39920 39922 39925 39934 39936-39937 39940 39950 39979 39996 40072 40080 40099-40100 40132 40458 40472 40504 40587 41139 41151 41178 41191 41257 41279 41374 41379 41392 41427 41469 41484 41497 41510 41521 41553 41612 41632 41815-41816 41857 41867 42188 42217 42224 42229 42476 42508-42509 42561 42594 42603 42633 42648 42653 42679 43060 43062 43064 43120 43157 43172 43422 43426 44248 45139 45156 45159 45260 45269 45437 45483 45519 45531 45549 45642 45646 45652 45671 45673 45675 45680-45681 45778 45963 45986 46418 46829 46874 46987 47163 47328 47399 47403 47479 47496 47499 48410 48608 48618 48727 49108https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/679/A105?format=asciiOpticaldefaultJ/A+A/679/A105/table4All stars with positive fugitive probabilitiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGaiaDR3Gaia DR3 source idmeta.id;meta.mainRA_ICRSGaia DR3 right ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainDE_ICRSGaia DR3 declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainpmembMembership probabilitystat.probabilityfloatpfugFugitive probabilitystat.fit.goodnessfloatClusterName of the cluster the star is associated with (1)meta.id.parentchar