178 citations · 269 across the 2 of their papers we have counts for
8 papers
Spectral models for solar-scaled and alpha-enhanced stellar populations
P. Coelho, G. Bruzual, S. Charlot +3
We present the first models allowing one to explore in a consistent way the influence of changes in the alpha-element-to-iron abundance ratio on the high-resolution spectral proper…
First full evolutionary computation of the He-flash induced mixing in Population II stars
S. Cassisi, H. Schlattl, M. Salaris +1
The core helium-flash in low-mass stars with extreme mass loss occurs after the tip of the RGB, when the H-rich envelope is very thin. The low efficiency of the H-shell source enab…
Evolution and surface abundances of red giants experiencing deep mixing
Achim Weiss, Pavel A. Denissenkov, Corinne Charbonnel
We have calculated the evolution of low metallicity red giant stars under the assumption of deep mixing between the convective envelope and the hydrogen burning shell. We find that…
Colour transformations for isochrones in the VI-plane
Achim Weiss, Maurizio Salaris
Reliable temperature-colour transformations are a necessary ingredient for isochrones to be compared with observed colour-magnitude-diagrams of globular clusters. We show that both…
The age of the most nearby star
Achim Weiss, Helmut Schlattl
We address the question how accurately stellar ages can be determined by stellar evolution theory. We select the star with the best observational material available - our Sun. We d…
The level of agreement between theoretical and observed globular cluster luminosity functions
S. Degl'Innocenti, A. Weiss, L. Leone
Luminosity functions from theoretical stellar evolution calculations are compared with observed ones of several galactic globular clusters (M30, M92, M68, NGC6397, M4, M80, NGC6352…