J/MNRAS/526/1260ivo://CDS.VizieR/J/MNRAS/526/1260doi:10.26093/cds/vizier.75261260CDSJeffries R.D.Jackson R.J.Binks A.S.2024-11-06T20:34:56Z2024-04-12T12:33:32ZCDS support team

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

cds-question@unistra.fropen-star-clusterspre-main-sequence-starsline-intensitiesphotometryvisible-astronomyIC 4665 is one of only a dozen young open clusters with a 'lithium depletion boundary' (LDB) age. Using an astrometrically and spectroscopically filtered sample of cluster members, we show that both the positions of its low-mass stars in Gaia absolute colour-magnitude diagrams and the lithium depletion seen among its K- and early M-stars are discordant with the reported LDB age of 32^+4^_-5_Myr. Re-analysis of archival spectra suggests that the LDB of IC 4665 has not been detected and that the published LDB age should be interpreted as a lower limit. Empirical comparisons with similar data sets from other young clusters with better-established LDB ages indicate that IC 4665 is bracketed in age by the clusters IC 2602 and IC 2391 at 55+/-3Myr.2023MNRAS.526.1260Jhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/526/1260CatalogResearchIsServedByTAP 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/MNRAS/526/1260https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/526/1260http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/526/1260https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/526/1260https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/526/1260http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/526/1260GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/526/1260/table1 (Properties of the individual cluster members)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/526/1260/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/526/1260/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/526/1260/table1?GETtext/xml+votable180.050000true266.112955.788780.0055555555555555565/4122 5514 6/16447 16576-16577 31785 31787-31788 31790 37229-37231 37240 37242 37313 37316-37317 37787-37790 37809 37812 39181 39183 39192 39194https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/526/1260?format=asciiOpticaldefaultJ/MNRAS/526/1260/table1Properties of the individual cluster membersrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClusterCluster identifiermeta.id.parentcharTargetName (1)meta.id;meta.maincharRAJ2000Right Ascension (J2000.0)degpos.eq.ra;meta.mainDEJ2000Declination (J2000.0)degpos.eq.dec;meta.mainMem[0/1]? Membership probability (2)stat.probabilityfloatnullableTeffEffective temperatureKphys.temperature.effectiveintl_EWLi[<=Y?-. ] Upper limit flag on EWLi (3)meta.code.errorcharEWLi? Equivalent width of Li line in mA0.1pmspect.line.eqWidthfloatnullableEWLic? EWLi corrected for blending (4)0.1pmspect.line.eqWidthfloatnullablee_EWLic? 1 sigma error in EWLic0.1pmstat.errorfloatnullableGaiaDR3Identifier in Gaia DR3meta.idSimbadNameSimbad column added by the CDSmeta.idcharnullableplxParallax from Gaia DR3maspos.parallax.trigfloate_plx1 sigma error in parallaxmasstat.error;pos.parallaxfloatDistInferred distancepcpos.distancefloate_Dist1 sigma error in distancepcstat.errorfloatGmagG magnitudemagphot.mag;em.optdoublee_Gmag1 sigma error in G magnitudemagstat.error;phot.magdoubleBPmag? Bp magnitudemagphot.mag;em.opt.Bdoublenullablee_BPmag? 1 sigma error in Bp magnitudemagstat.error;phot.magdoublenullableRPmag? Rp magnitudemagphot.mag;em.opt.Rdoublenullablee_RPmag? 1 sigma error in Rp magnitudemagstat.error;phot.magdoublenullablephotxs? Ratio of corrected flux excess factor to its dispersion (5)phot.flux;arith.ratiofloatnullableGmag0? Extinction-corrected G magnitudemagphot.mag;em.optfloatnullableGMAG? Absolute G magnitudemagphys.magAbsfloatnullablee_GMAG? 1 sigma error in absolute G magnitudemagstat.errorfloatnullable(BP-RP)0? Intrinsic Bp-Rp colourmagphot.color;em.opt.B;em.opt.Rfloatnullablee_(BP-RP)0? 1 sigma error in intrinsic Bp-Rpmagstat.errorfloatnullable(G-RP)0? Intrinsic G-Rp colourmagphot.color;em.opt;em.optfloatnullablee_(G-RP)0? 1 sigma error in intrinsic G-Rpmagstat.errorfloatnullable