J/MNRAS/446/1411ivo://CDS.VizieR/J/MNRAS/446/1411doi:10.26093/cds/vizier.74461411CDSDonati P.Cocozza G.Bragaglia A.Pancino E.Cantat-Gaudin T.,Carrera R.Tosi M.2024-08-14T20:18:40Z2015-02-23T08:22:15ZCDS support team

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

cds-question@unistra.fropen-star-clustersvisible-astronomybroad-band-photometryline-intensitiesAs part of a long-term programme, we analyse the evolutionary status and properties of the old and populous open cluster Trumpler 5 (Tr 5), located in the Galactic anticentre direction, almost on the Galactic plane. Tr 5 was observed with Wide Field Imager@MPG/ESO Telescope using the Bessel U, B, and V filters. The cluster parameters have been obtained using the synthetic colour-magnitude diagram (CMD) method, i.e. the direct comparison of the observational CMD with a library of synthetic CMDs generated with different stellar evolution sets (Padova, FRANEC, and FST). Age, reddening, and distance are derived through the synthetic CMD method using stellar evolutionary models with subsolar metallicity (Z=0.004 or Z=0.006). Additional spectroscopic observations with Ultraviolet VLT Echelle Spectrograph@Very Large Telescope of three red clump stars of the cluster were used to determine more robustly the chemical properties of the cluster. Our analysis shows that Tr 5 has subsolar metallicity, with [Fe/H]=-0.403+/-0.006 dex (derived from spectroscopy), age between 2.9 and 4 Gyr (the lower age is found using stellar models without core overshooting), reddening E(B-V) in the range 0.60-0.66 mag complicated by a differential pattern (of the order of ~+/-0.1mag), and distance modulus (m-M)_0_=12.4+/-0.1mag.2015MNRAS.446.1411Dhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/446/1411CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+AS/133/25 : CCD BVI photometry of Trumpler 5 (Kaluzny 1998)J/MNRAS/349/641 : VIc, CT1 magnitudes in Trumpler 5 (Piatti+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/446/1411https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/446/1411http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/446/1411https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/446/1411https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/446/1411http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/446/1411GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/446/1411/catalog (BV photometry and Diff. Reddening (DR) corrections)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/446/1411/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/446/1411/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/446/1411/catalog?GETtext/xml+votable180.050000true99.232661949.519551110.0055555555555555566/23633 23635-23636 236383.322582951404819e-19 4.920466254354166e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/446/1411?format=asciiOpticaldefaultJ/MNRAS/446/1411/catalogBV photometry and Diff. Reddening (DR) correctionsID[100001/892161] Identification indexspect.index;meta.mainintprimaryChipChip ID of WFI mosaic (1-8, E1-E8)meta.id;instrcharXpos[0/2060] Cartesian coordinate of the chippos.cartesian.x;instr.detdoubleYpos[0/4110] Cartesian coordinate of the chippos.cartesian.y;instr.detdoubleRAJ2000Right Ascension coordinate J2000degpos.eq.ra;meta.mainindexedDEJ2000Declination coordinate J2000degpos.eq.dec;meta.mainindexedDistDistance from the centre in arcminutesarcminpos.angDistancefloatVmag? V magnitude (1)magphot.mag;em.opt.Vfloatnullablee_Vmag? Photometric error on V magnitude (1)magstat.error;phot.mag;em.opt.VfloatnullableBmag? B magnitude (1)magphot.mag;em.opt.Bfloatnullablee_Bmag? Photometric error on B magnitude (1)magstat.error;phot.mag;em.opt.Bfloatnullablechi[0.4/12.4]? DAOPHOT {chi} parameter (2)stat.fit.chi2floatnullablesharp[-12.8/6.4] Sharpness parameter of DAOPHOT (2)stat.fit.paramdoubleDR[-0.1/0.2]? DR correction in E(B-V)magphot.mag;arith.difffloatnullableVmagc? V magnitude corrected for DRmagphot.mag;em.opt.VfloatnullableB-Vc? B-V colour index corrected for DRmagphot.color;em.opt.B;em.opt.VfloatnullableJ/MNRAS/446/1411/table7Table of equivalent width measures for 3 stars (204783, 204892 and 204893)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDIdentification index of the starsspect.indexintlambda[4787/6796] Reference wavelength in Angstrom0.1nmmeta.ref;em.wldoubleIonAtomic speciesphys.atmol.ionStagecharEpExcitation potentialeVphys.atmol.excitationfloatloggfLogarithm of the oscillator strengthphys.atmol.oscStrengthfloatEWMeasured equivalent width in milli-Angstrom0.1pmspect.line.eqWidthfloate_EWError on equivalent width in milli-Angstrom0.1pmstat.error;spect.line.eqWidthfloatQ[0.3/2.2] Quality parameter of DAOSPEC (large values are bad)meta.code.qualfloatCompCompare the equivalent widths of this linemeta.ref.urlintnullable