J/A+A/490/151ivo://CDS.VizieR/J/A+A/490/151doi:10.26093/cds/vizier.34900151CDSKruijssen J.M.D.Lamers H.J.G.L.M.2009-11-17T10:30:05Z2009-11-17T11:22:50ZCDS support team

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

cds-question@unistra.frstellar-evolutionary-modelsglobular-star-clustersopen-star-clustersTo obtain an accurate description of broad-band photometric star cluster evolution, certain effects should be accounted for. Energy equipartition leads to mass segregation and the preferential loss of low-mass stars, while stellar remnants severely influence cluster mass-to-light ratios. Moreover, the stellar initial mass function and cluster metallicity affect photometry as well. Due to the continuous production of stellar remnants, their impact on cluster photometry is strongest for old systems like globular clusters. This, in combination with their low metallicities, evidence for mass segregation, and a possibly deviating stellar initial mass function, makes globular clusters interesting test cases for cluster models. In this paper we describe cluster models that include the effects of the preferential loss of low-mass stars, stellar remnants, choice of initial mass function and metallicity. The photometric evolution of clusters is predicted, and the results are applied to Galactic globular clusters. The cluster models presented in this paper represent an analytical description of the evolution of the underlying stellar mass function due to stellar evolution and dynamical cluster dissolution. Stellar remnants are included by using initial-remnant mass relations, while cluster photometry is computed from the Padova 1999 isochrones.2008A&A...490..151Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/490/151CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/A+A/321/29 : Star cluster evolution (Olofsson 1997)J/A+A/392/1 : Stellar Populations simulated spectrophotometry (Schulz+, 2002)J/A+A/462/107 : Simulations of metal-poor star clusters (Fagiolini+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/490/151https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/490/151http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/490/151https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/490/151https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/490/151http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/490/151GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/490/151/table1*Fitting values for a, b and c for the luminous fractional cluster mass decrease due to stellar evolution.ZInitial metallicityphys.abund.ZfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintType[LT] (L)uminous cluster mass (q_ev_^lum^) or (T)otal cluster mass (q_ev_^tot^)meta.codecharMassInitial maximum stellar mass (1)solMassphys.massfloataSSalpeter IMF a_ev_ parameterstat.paramfloatbSSalpeter IMF b_ev_ parameterstat.paramfloatcSSalpeter IMF c_ev_ parameterstat.paramfloataKKroupa IMF a_ev_ parameterstat.paramfloatbKKroupa IMF b_ev_ parameterstat.paramfloatcKKroupa IMF c_ev_ parameterstat.paramfloatDirName of the subdirectory containing the model files (2)meta.id;meta.filecharprimaryJ/A+A/490/151/modelsSummary of modelsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintZInitial metallicityphys.abund.ZfloatIMF[SK] Salpeter or Kroupa IMFmeta.id;stat.fitcharr[r-] "r" if model includes remnantsmeta.id;stat.fitcharL[L-] "L" if model includes preferential loss of low-mass starsmeta.id;stat.fitchartDDissolution timescaleMyrstat.paramintlogMoInitial mass of the cluster (log scale)log(solMass)phys.massfloatlogMfFinal mass of the cluster (at tf)log(solMass)phys.massfloatlogtfFinal time (log scale)log(yr)time.agefloatDirSubdirectory namemeta.id;meta.filecharFileFile name containing the modelmeta.id;stat.param;meta.modelledcharRecordStarting record number of the model in Filemeta.recordintPlotPlot the evolution for this modelmeta.ref.urlchar