13-19 June 2015
University of Alberta
America/Edmonton timezone
Welcome to the 2015 CAP Congress! / Bienvenue au congrès de l'ACP 2015!

The turbulent hydrodynamics and nuclear astrophysics of anomalous stars from the early universe

15 Jun 2015, 15:45
30m
CCIS L1-140 (University of Alberta)

CCIS L1-140

University of Alberta

Invited Speaker / Conférencier invité Nuclear Physics / Physique nucléaire (DNP-DPN) M2-5 Nuclear Astrophysics (DNP) / Astrophysique nucléaire (DPN)

Speaker

Falk Herwig (University of Victoria)

Description

The anomalous abundances that can be found in the most metal-poor stars reflect the evidently large diversity of nuclear production sites in stars and stellar explosions, as well as the cosmological conditions for the formation and evolution of the first generations of stars. Significant progress in our predictive understanding of nuclear production in the early universe comes now within reach through advancing capabilities to perform large-scale 3D stellar hydrodynamic simulations of the violent outbursts of advanced nuclear burning. When complemented with comprehensive nucleosynthesis simulations we can characterize the chemical evolution of stellar populations. Nuclear production sites in the early universe involves unstable species on the p- and n-rich side of the valley of stability, and nuclear data in key cases is presently too uncertain to enable the required predictive simulation capability. These are the underpinnings to decipher the messages from the early universe hidden in the anomalous abundances of metal poor stars.

Primary author

Falk Herwig (University of Victoria)

Presentation Materials

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