J/A+A/664/A66ivo://CDS.VizieR/J/A+A/664/A66doi:10.26093/cds/vizier.36640066CDSMendigutia I.Solano E.Vioque M.Balaguer-Nunez L.Ribas A.,Huelamo N.Rodrigo C.2024-06-05T16:38:41Z2022-08-04T09:05:39ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyopen-star-clustersvisible-astronomytrigonometric-parallaxproper-motionsThe lifetime of protoplanetary disks around young stars limits the timescale of planet formation. A disk dissipation timescale <=10Myr was inferred from surveys that count the relative number of stars with disks - the disk fraction - in young stellar clusters with different ages. However, most previous surveys focused on the compact region within ~2pc of the clusters' centers, for which the disk fraction information about the outer part is practically absent. We aim to test if disk fraction estimates change when inferred from an extended region around the clusters' centers. Gaia EDR3 data and a best-suited, Virtual Observatory (VO)-based tool - Clusterix - are used to identify member stars for a representative sample of 19 young stellar clusters considering two concentric fields of view (FOVs) with radii of 20pc and 2pc. Inner-disk fractions associated with each FOV are identically derived from 2MASS color-color diagrams and compared to each other. Although the density of members is smaller in the periphery, the absolute number of member stars is typically ~5 times larger at distances farther than ~2pc from the clusters' centers. In turn, our analysis reveals that the inner disk fractions inferred from the compact and the extended regions are equal within ~+/-10%. A list of member and disk stars identified in each cluster is provided and stored in a VO-compliant archive, along with their membership probabilities, angular distances to the center, and Gaia and near-infrared data. Averaged values and plots that characterize the whole clusters are also provided, including Hertzsprung-Russell diagrams based on Gaia colors and absolute magnitudes for the sources with known extinction. Our results cover the largest fields ever probed when dealing with disk fractions for all clusters analyzed, and imply that their complete characterization requires the use of wide FOVs. However, the comparative study does not support a previous hypothesis that disk fractions should be significantly larger when extended regions are considered. The resulting database is a benchmark for future detailed studies of young clusters, whose disk fractions must be accurately determined by using multiwavelength analysis potentially combined with data from upcoming Gaia releases.2022A&A...664A..66Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/664/A66CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/350 : Gaia EDR3 (Gaia Collaboration, 2020)VII/233 : The 2MASS Extended sources (IPAC/UMass, 2003-2006)J/MNRAS/492/5811 : Clusterix 2.0 (Balaguer-Nunez+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/664/A66https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/664/A66http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/664/A66https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/664/A66https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/664/A66http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/664/A66GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/664/A66/tablea1 (Young stellar clusters: regions and membership)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A66/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A66/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A66/tablea1?GETtext/xml+votable180.050000true52.296831.30970.005555555555555556Cone search capability for table J/A+A/664/A66/tablea2 (Data for the members within ~20pc from the center of 19 young stellar clusters)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/664/A66/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/664/A66/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/664/A66/tablea2?GETtext/xml+votable180.050000true49.5344069432.240498060.0055555555555555565/215 299 384-386 388 3869 3915 5414 5909 5923 5926 5929 5934 5940 5952 6127 7229 9512-9514 9795 9799 9801 9803-9804 9806 10598 6/847 853 855 857 859 881 885 887-888 894 1190 1193 1195 1208 1210-1211 1285 1287 1296 1298 1300 1548-1550 1568-1569 1572 15454-15455 15473 15475 15481 15484-15485 15648 15659 15674 15745 15748-15750 15757-15759 15770 15780-15781 15792 21639 21645 21650-21651 22243 22246 22249 22251-22252 22254 22267-22268 22270-22271 22442 23633 23635 23644-23645 23689 23691 23712-23713 23715 23724-23725 23727-23730 23734 23751 23766 23768-23769 23772 23816 23818 24505 24507 28894 28913 28915 29461 29463 29504 29506 37367 37373 37375 38016-38018 38027 38060-38061 39175 39186-39187 39190-39192 39194-39195 39201 39203 39209 39220-39222 39228 39300-39301 39905-39908 39910 39912-39913 39916 42382-42383 42404-42405 42416-424171.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/664/A66?format=asciiOpticaldefaultJ/A+A/664/A66/tablea1Young stellar clusters: regions and membershiprecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster namemeta.id.parentcharRA_ICRSCluster central right ascension (ICRS)degpos.eq.ra;meta.mainSimbadNameSimbad column added by the CDSmeta.idcharnullableDE_ICRSCluster central declination (ICRS)degpos.eq.dec;meta.mainRFOV20pcFOV20pc cluster associated angular radiusarcminmeta.id.assoc;phys.angSizeintNmembFOV20pcNumber of members for FOV20pcmeta.numberintNtotFOV20pcTotal number of sources within FOV20pc having Gaia EDR3 proper motions and reliable parallaxes (1)meta.numberintplxFOV20pcFOV20pc inferred mean parallaxmaspos.parallax.trigfloate_plxFOV20pcFOV20pc inferred mean parallax errormasstat.errorfloatpmRAFOV20pcFOV20pc inferred mean proper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRAFOV20pcFOV20pc inferred mean proper motion along RA errormas/yrstat.error;pos.pm;pos.eq.rafloatpmDECFOV20pcFOV20pc inferred mean proper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDECFOV20pcFOV20pc inferred mean proper motion along DE errormas/yrstat.error;pos.pm;pos.eq.decfloatRFOV2pcFOV2pc cluster associated angular radiusarcminmeta.id.assoc;phys.angSizefloatNmembFOV2pcNumber of members for FOV2pcmeta.numberintNtotFOV2pcTotal number of sources within FOV2pc having Gaia EDR3 proper motions and reliable parallaxes (1)meta.numberintplxFOV2pcFOV2pc Inferred mean parallaxmaspos.parallax.trigfloate_plxFOV2pcFOV2pc Inferred mean parallax errormasstat.errorfloatpmRAFOV2pcFOV2pc Inferred mean proper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRAFOV2pcFOV2pc Inferred mean proper motion along RA errormas/yrstat.error;pos.pm;pos.eq.rafloatpmDECFOV2pcFOV2pc Inferred mean proper motion along DEmas/yrpos.pm;pos.eq.decfloate_pmDECFOV2pcFOV2pc Inferred mean proper motion along DE errormas/yrstat.error;pos.pm;pos.eq.decfloatJ/A+A/664/A66/tablea2Data for the members within ~20pc from the center of 19 young stellar clusterse_H-K? 2MASS error H-K colormagstat.error;phot.color;em.IR.HfloatnullableJ-H? 2MASS J-H colormagphot.color;em.IR.J;em.IR.Hfloatnullablee_J-H? 2MASS error J-H colormagstat.error;phot.color;em.IR.JfloatnullableDiskPresence ("yes") or possible presence ("yes?") of an inner diskmeta.codecharGaiaEDR3Display the Gaia EDR3 data (Cat. I/350)meta.ref.urlchar_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterName of the host young stellar clustermeta.id.parentcharRA_ICRSGaia EDR3 right ascension (ICRS) at Ep=2016.0degpos.eq.ra;meta.mainDE_ICRSGaia EDR3 declination (ICRS) at Ep=2016.0degpos.eq.dec;meta.mainpmRAGaia EDR3 proper motion in RAmas/yrpos.pm;pos.eq.rafloate_pmRAGaia EDR3 error proper motion in RAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDEGaia EDR3 proper motion in DEmas/yrpos.pm;pos.eq.decfloate_pmDEGaia EDR3 error proper motion in DEmas/yrstat.error;pos.pm;pos.eq.decfloatPlxGaia EDR3 parallaxmaspos.parallaxfloate_PlxGaia EDR3 error parallaxmasstat.error;pos.parallaxfloatBPmag? Gaia EDR3 BP magnitudemagphot.mag;em.opt.Bfloatnullablee_BPmag? Gaia EDR3 error BP magnitudemagstat.error;phot.magfloatnullableRPmag? Gaia EDR3 RP magnitudemagphot.mag;em.opt.Rfloatnullablee_RPmag? Gaia EDR3 error RP magnitudemagstat.error;phot.magfloatnullableGmagGaia EDR3 G magnitudemagphot.mag;em.optfloate_GmagGaia EDR3 error G magnitudemagstat.error;phot.magfloatdcentAngular distance to the center of the clusterdegpos.angDistancedoubleProb[0/1] Membership probabilitystat.probabilityfloatH-K? 2MASS H-K colormagphot.color;em.IR.H;em.IR.Kfloatnullable