91 citations · 91 across the 1 of their papers we have counts for
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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…
Arc Statistics with Realistic Cluster Potentials. II. Influence of Cluster Asymmetry and Substructure
Matthias Bartelmann, Matthias Steinmetz, Achim Weiss
We construct a sample of numerical models for clusters of galaxies and employ these to investigate their capability of imaging background sources into long arcs. Emphasis is laid o…