Galactic chemical evolution models which include sodium from type II supernovae alone underestimate the abundance of sodium in the interstellar medium by a factor of two to three over about 3 dex in metallicity and predict a flat behaviour in the evolution of [Na/Fe] at super-solar metallicities. Conversely, recent observations of stars with [Fe/H]~+0.4 suggest that [Na/Fe] increases at high metallicity. We have combined stellar evolution models of asymptotic giant branch and Wolf-Rayet stars with the latest supernova yields in an attempt to resolve these problems ... and have created many more
We present sodium abundances for a sample of nearby stars. All results have been derived from NLTE s...
Uncertainties in stellar nucleosynthesis and their impact on models of chemical evolution are discus...
Context. Globular clusters host multiple stellar populations showing different sodium enrichments. T...
[condensed] A new scenario is presented for the production of Na23 in asymptotic giant branch (AGB) ...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Abundance ratios in extremely metal-poor (EMP) stars are a good indication of the chemical compositi...
Stellar evolution models predict that internal mixing should cause some sodium overabundance at the ...
none43siContext. Stellar evolution models predict that internal mixing should cause some sodium over...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Long-lived stars in GCs exhibit chemical peculiarities with respect to their halo counterparts. In p...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Context. Long-lived stars in globular clusters exhibit chemical peculiarities with respect to their ...
Context. Galactic globular clusters (GC) are known to have multiple stellar populations and be chara...
Asymptotic Giant Branch (AGB) stars are important players in the chemical evolution modelling of gal...
We present sodium abundances for a sample of nearby stars. All results have been derived from NLTE s...
Uncertainties in stellar nucleosynthesis and their impact on models of chemical evolution are discus...
Context. Globular clusters host multiple stellar populations showing different sodium enrichments. T...
[condensed] A new scenario is presented for the production of Na23 in asymptotic giant branch (AGB) ...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Abundance ratios in extremely metal-poor (EMP) stars are a good indication of the chemical compositi...
Stellar evolution models predict that internal mixing should cause some sodium overabundance at the ...
none43siContext. Stellar evolution models predict that internal mixing should cause some sodium over...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Long-lived stars in GCs exhibit chemical peculiarities with respect to their halo counterparts. In p...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Context. Stellar evolution models predict that internal mixing should cause some sodium overabundanc...
Context. Long-lived stars in globular clusters exhibit chemical peculiarities with respect to their ...
Context. Galactic globular clusters (GC) are known to have multiple stellar populations and be chara...
Asymptotic Giant Branch (AGB) stars are important players in the chemical evolution modelling of gal...
We present sodium abundances for a sample of nearby stars. All results have been derived from NLTE s...
Uncertainties in stellar nucleosynthesis and their impact on models of chemical evolution are discus...
Context. Globular clusters host multiple stellar populations showing different sodium enrichments. T...