J/A+A/650/A67ivo://CDS.VizieR/J/A+A/650/A67doi:10.26093/cds/vizier.36500067CDSRain M.J.Ahumada J.A.Carraro G.2023-02-04T18:12:40Z2021-06-08T06:47:18ZCDS support team

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

cds-question@unistra.fropen-star-clusterspeculiar-variable-starsBlue straggler stars are exotic objects present in all stellar environments whose nature and formation channels are still partially unclear. They seem to be particularly abundant in open clusters (OCs), thus offering a unique chance to tackle these problems statistically. We aim at building up a new and homogeneous catalogue of blue straggler stars (BSS) in Galactic OCs using Gaia to provide a more solid assessment of these stars membership. Then, we aim at exploring possible relationships of the straggler abundance with the parent cluster structural and dynamical parameters. As a by-product, we also search for possible yellow straggler stars (YSS), which are believed to be stragglers in a more advanced evolution stage. We employ photometry, proper motions, and parallaxes extracted from Gaia DR2 for 408 Galactic star clusters and searched for stragglers within them after performing a careful membership analysis. The number of BBS emerging from our more stringent, selection criteria turns out to be significantly smaller than in previous versions of this catalogue. OCs are therefore not anymore a preferable environment for this kind of stars. Besides, we found that BSS start to appear in clusters with ages larger than log(t)~8.7 and are therefore absent in very young star clusters. The present catalogue supersedes the previous one from Ahumada et al. (2007A&A...463..789A, Cat. J/A+A/463/789) in several ways: membership assessment, number of stragglers found, and so forth. The new list includes 889 BSS and 77 YSS candidates in 408 OCs. We expect this catalogue to be the basis for a new round of studies of blue and yellow straggler stars.2021A&A...650A..67Rhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/650/A67CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/463/789 : Blue stragglers in open clusters (Ahumada+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/650/A67https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/650/A67http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/650/A67https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/650/A67https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/650/A67http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/650/A67GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/650/A67/clusters (Open cluster data (table 3))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/650/A67/clusters?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/650/A67/clusters?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/650/A67/clusters?GETtext/xml+votable180.050000true80.1330.5740.005555555555555556Cone search capability for table J/A+A/650/A67/bss (Blue stragglers in open clusters (table 4))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/650/A67/bss?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/650/A67/bss?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/650/A67/bss?GETtext/xml+votable180.050000true99.153989.848490.005555555555555556Cone search capability for table J/A+A/650/A67/yss (Yellow stragglers in open clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/650/A67/yss?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/650/A67/yss?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/650/A67/yss?GETtext/xml+votable180.050000true118.08184-38.482270.0055555555555555566/463 1285 1287 1297 1302 1318 1325 1385 1388 1452 1457 1464 1481 1483-1484 1512 1514 1539 1582 1653 1757 1782-1783 1788 1923 1930 2395 2436 2940 2942 3002 3009 3014-3015 3021 3038 3045 3047 3050 3052 3056-3057 3060-3061 3066 3076 3089 3091 3136 3143 3153 3168 3170 3186 3230 3254 3256-3257 3259 3261 3298 3301 3305-3309 3335 3384 3584 3604 3611 3614 3621-3623 3626 3632-3633 3636 3638 3640 3680 3712 3715 3718 3796 4078 4298 4698 6149 6760 6817 12941 12943 12955 12990 13198 13952 13996 14013 14029 14033 14058 14173 14175 14197 14210 14258 14263 14288 14295 14301 14306 14309-14310 14314 14322 14353 14363 14415 14419 14573 14575 14584 14586 14628 14630 14643-14646 14690 14740 14749 14751-14754 15121 15376 15379 15381 15430 15443 15478 15594-15595 15622 15632 15662 15710-15711 15733 15759 15827 16490 20562 20797 20814 20833 20903 20957 21369 21517 21523 21529 21538 21540 21549 21557 21560 21586 21633 21647 21656 21682 21718-21719 21774 22021 22038 22058 22123 22130 22215-22216 22218 22224 22237 22239 22245 22249 22433 22499 22869 22871 22887 23410 23580 23612 23620 23633 23635-23638 23645 23696 23717 23744-23745 23761 23769 23861 23906 23964 23966 24057 24121 24228 24330 24333 24344-24345 24483 24489 24491 24510 24522 24544 28711 28800 28806-28807 28809 28812 28818 28822 28825 28868 28916 29027 29032 29066 29081 29095 29106 29113 29269 29463 29510 29523 29533 30208 30215 30232 30271 30308 30335 30439 30635 30653 31790 31812 33102 37230-37231 37237 37348 37351 37375 37592-37593 37705 37707 37712 37719 37721 37724 37733 37745 37753 37789-37790 37839 37841 37859 37865 37867 37892 37895 37901 37920 37924 37926 37929 37933-37935 37970-37971 38016 38018 38020-38021 38023-38024 38026 38073 38205 38242 38432 38578 39129 39131 39181 39216 39233 39236 39244-39245 39251 39274 39286 39290-39291 39353-39356 39371 39373-39374 39385 39393 39397 39714 39739 39756 39766 39770 39774-39776 39797 39801 39804-39806 39832 39871 39894 39901 39906-39907 39912 39920 39930-39931 39956 40071 40101 40104 40106 40112 40490 40610 40618 40696 41445 41461 41466 41599 41612-41613 41620 41646 41649 41670 41675 41678 41682 41688 41696 41699 41702 41710 41758 41768 41770 41789 41809 41832-41834 41856 41863 41878 41928 42153 42155 42159 42164 42166 42177 42203 42209-42210 42213 42216 42227 42274 42303 42367 42374 42376-42377 42394 42399 42402 42420 42464 42500 42583 42752 43022 43024 43032-43034 43044 43047-43048 433011.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/650/A67?format=asciidefaultJ/A+A/650/A67/clustersOpen cluster data (table 3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharRAJ2000Right ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainlog(Age)Decimal logarithm of the agelog(yr)time.agefloatE(B-V)Reddeningmagphot.color.excessfloatpmRAProper motion along RA, pmRA*cosDEmas/yrpos.pm;pos.eq.rafloatSimbadNameSimbad column added by the CDSmeta.idcharnullablepmDEProper motion along DEmas/yrpos.pm;pos.eq.decfloatplxParallaxmaspos.parallax.trigfloatDistDistancepcpos.distancefloatNBSS[0/103] Number of blue straggler candidatesmeta.numberintNYSS[0/4] Number of yellow straggler candidatesmeta.numberintNotes[*] * indicates a note detailed in notes.dat filemeta.notecharJ/A+A/650/A67/bssBlue stragglers in open clusters (table 4)rLocation from cluster centerarcminpos.angDistancefloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharGaiaDR2Gaia DR2 source_idmeta.id;meta.mainRA_ICRSGaia DR2 right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSGaia DR2 declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainpmRAGaia DR2 proper motion along RA, pmRA*cosDEmas/yrpos.pm;pos.eq.radoublepmDEGaia DR2 proper motion along DEmas/yrpos.pm;pos.eq.decfloatplxGaia DR2 parallaxmaspos.parallax.trigfloatGmagGaia DR2 mean G magnitudemagphot.mag;em.optfloatBP-RPGaia DR2 BP-RP colour indexmagphot.color;em.opt.B;em.opt.RfloatPmembMembership probabilitystat.probabilityfloatJ/A+A/650/A67/yssYellow stragglers in open clustersPmembMembership probabilitystat.probabilityfloatrLocation from cluster centerarcminpos.angDistancefloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharGaiaDR2Gaia DR2 source_idmeta.id;meta.mainRA_ICRSGaia DR2 right ascension (ICRS) at Ep=2015.5degpos.eq.ra;meta.mainDE_ICRSGaia DR2 declination (ICRS) at Ep=2015.5degpos.eq.dec;meta.mainpmRAGaia DR2 proper motion along RA, pmRA*cosDEmas/yrpos.pm;pos.eq.radoublepmDEGaia DR2 proper motion along DEmas/yrpos.pm;pos.eq.decfloatplxGaia DR2 parallaxmaspos.parallax.trigfloatGmagGaia DR2 mean G magnitudemagphot.mag;em.optfloatBP-RPGaia DR2 BP-RP colour indexmagphot.color;em.opt.B;em.opt.RfloatJ/A+A/650/A67/notesNotesTextText of notemeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentchar