359 citations · 431 across the 4 of their papers we have counts for
4 papers
Neutron star mergers versus core-collapse supernovae as dominant r-process sites in the early Galaxy
D. Argast, M. Samland, F. -K. Thielemann +1
The astrophysical nature of r-process sites is a long standing mystery and many probable sources have been suggested in the past, among them lower-mass core-collapse supernovae (in…
Stellar Sources of the Interstellar Medium
F. -K. Thielemann, D. Argast, F. Brachwitz +14
With the exception of the Big Bang, responsible for 1,2H, 3,4He, and 7Li, stars act as sources for the composition of the interstellar medium. Cosmic rays are related to the latter…
Implications of O and Mg abundances in metal-poor halo stars for stellar iron yields
D. Argast, M. Samland, F. -K. Thielemann +1
Inhomogeneous chemical evolution models of galaxies which try to reproduce the scatter seen in element-to-iron ratios of metal-poor halo stars are heavily dependent on theoretical…
Metal-poor halo stars as tracers of ISM mixing processes during halo formation
D. Argast, M. Samland, O. E. Gerhard +1
We introduce a stochastic halo formation model to compute the early chemical enrichment of the interstellar medium (ISM) of the halo. Contrary to 1-zone chemical evolution models,…