J/A+A/524/A45ivo://CDS.VizieR/J/A+A/524/A45doi:10.26093/cds/vizier.35240045CDSPumo M.L.Contino G.Bonanno A.Zappala R.A.2011-01-01T21:21:55Z2010-11-23T07:52:07ZCDS support team

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

cds-question@unistra.frstellar-evolutionary-modelschemically-peculiar-starschemical-abundancesUsing the "post-processing" technique, we explore the role of the convective overshooting on the production of s-nuclei in stellar models of different initial mass and metallicity (M_ZAMS_ in the range 15-25M_{sun}_ Z in the range 10^-4^-0.02), considering a range of values for the parameter f, which determines the overall efficiency of convective overshooting. We find enhancements in the production of s-nuclei until a factor ~6 (measured as the average overproduction factor of the 6 s-only nuclear species with 60<A<90) in all our models of different initial mass and metallicity having f in the range 0.01-0.035 (i.e. models with overshooting), compared to the production obtained with "no-overshooting" models (i.e. models having the same initial mass and metallicity but f=10^-5^). Moreover the results indicate that the link between the overshooting parameter f and the s-process efficiency is essentially monotonic in all our models of different initial mass and metallicity. Also evident is the higher s-process efficiency when, for a given f value, we progressively increase both the mass of the models from 15 to 25M_{sun}_ and the Z value from 10^-4^ to 0.02.2010A&A...524A..45Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/524/A45CatalogResearchIsServedByTAP VizieR generic servicerelated-toVI/109 : Population Synthesis Models at very low metallicities (Schaerer, 2003)VI/118 : Stellar Models until He burning (Claret+ 1995-1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/524/A45https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/524/A45http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/524/A45https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/524/A45https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/524/A45http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/524/A45GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/524/A45/tablea4Overproduction factors for all the models with initial metallicity Z=0.02recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintA[69/209] Mass numbermeta.id;meta.mainintElNuclide (chemical) symbolmeta.notecharM15T07? Overproduction factors obtained by The, El Eid & Meyer (2007ApJ...655.1058T) for their Z=0.02, M=15M_{sun}_ stellar model (G1)stat.paramdoublenullableM15f.001Overproduction factors for our Z=0.02, M=15M_{sun}_ stellar model with overshooting parameter f=0.00001 (G1)stat.paramdoubleM15f1Overproduction factors for our Z=0.02, M=15M_{sun}_ stellar model with overshooting parameter f=0.01 (G1)stat.paramdoubleM15f2Overproduction factors for our Z=0.02, M=15M_{sun}_ stellar model with overshooting parameter f=0.02 (G1)stat.paramdoubleM15f3.5Overproduction factors for our Z=0.02, M=15M_{sun}_ stellar model with overshooting parameter f=0.035 (G1)stat.paramdoubleM20T07? Overproduction factors obtained by The, El Eid & Meyer (2007ApJ...655.1058T) for their Z=0.02, M=20M_{sun}_ stellar model (G1)stat.paramdoublenullableM20f0001Overproduction factors for our Z=0.02, M=20M_{sun}_ stellar model with overshooting parameter f=0.00001 (G1)stat.paramdoubleM20f1Overproduction factors for our Z=0.02, M=20M_{sun}_ stellar model with overshooting parameter f=0.01 (G1)stat.paramdoubleM20f2Overproduction factors for our Z=0.02, M=20M_{sun}_ stellar model with overshooting parameter f=0.02 (G1)stat.paramdoubleM20f3.5Overproduction factors for our Z=0.02, M=20M_{sun}_ stellar model with overshooting parameter f=0.035 (G1)stat.paramdoubleM25T07? Overproduction factors obtained by The, El Eid & Meyer (2007ApJ...655.1058T) for their Z=0.02, M=25M_{sun}_ stellar model (G1)stat.paramdoublenullableM25f.001Overproduction factors for our Z=0.02, M=25M_{sun}_ stellar model with overshooting parameter f=0.00001 (G1)stat.paramdoubleM25f1Overproduction factors for our Z=0.02, M=25M_{sun}_ stellar model with overshooting parameter f=0.01 (G1)stat.paramdoubleJ/A+A/524/A45/tablea5Overproduction factors for all the M=20M_{sun}_ models with initial metallicity Z<0.02recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintA[69/209] Mass numbermeta.id;meta.mainintElNuclide (chemical) symbolmeta.notecharM20Z.01f.001Overproduction factors for our Z=0.0001, M=20M_{sun}_ stellar model with overshooting parameter f=0.00001 (G1)stat.paramdoubleM20Z.01f1Overproduction factors for our Z=0.0001, M=20M_{sun}_ stellar model with overshooting parameter f=0.01 (G1)stat.paramdoubleM20Z.01f2Overproduction factors for our Z=0.0001, M=20M_{sun}_ stellar model with overshooting parameter f=0.02 (G1)stat.paramdoubleM20Z.01f3.5Overproduction factors for our Z=0.0001, M=20M_{sun}_ stellar model with overshooting parameter f=0.035 (G1)stat.paramdoubleM20Z.5f.001Overproduction factors for our Z=0.005, M=20M_{sun}_ stellar model with overshooting parameter f=0.00001 (G1)stat.paramdoubleM20Z.5f1Overproduction factors for our Z=0.005, M=20M_{sun}_ stellar model with overshooting parameter f=0.01 (G1)stat.paramdoubleM20Z.5f2Overproduction factors for our Z=0.005, M=20M_{sun}_ stellar model with overshooting parameter f=0.02 (G1)stat.paramdoubleM20Z.5f3.5Overproduction factors for our Z=0.005, M=20M_{sun}_ stellar model with overshooting parameter f=0.035 (G1)stat.paramdoubleM20Z1f.001Overproduction factors for our Z=0.01, M=20M_{sun}_ stellar model with overshooting parameter f=0.00001 (G1)stat.paramdoubleM20Z1f1Overproduction factors for our Z=0.01, M=20M_{sun}_ stellar model with overshooting parameter f=0.01 (G1)stat.paramdoubleM20Z1f2Overproduction factors for our Z=0.01, M=20M_{sun}_ stellar model with overshooting parameter f=0.02 (G1)stat.paramdoubleM20Z1f3.5Overproduction factors for our Z=0.01, M=20M_{sun}_ stellar model with overshooting parameter f=0.035 (G1)stat.paramdouble