The 568. Wilhelm und Else Heraeus-Seminar will be held from July 14th to 18th at the Physikzentrum in Bad Honnef.
Scientific Background
Asymptotic giant branch (AGB) stars are those passing through their final stage of nuclear burning before they end their lives as inert white dwarfs. After exhausting the supply of hydrogen and helium in their core, stars in the mass range ∼ 0.6 to eight solar masses go through the AGB phase of evolution (Fig. 1).
Fig. 1. AGB stars on HR diagram
Recent research has focused on a few key areas which we would like to explore in depth in this Heraeus seminar:
  • Mixing in AGB stellar interiors: stellar evolution, study of the physical processes affecting the mixing boundaries
  • Interstellar pollution from AGB stars: observations, chemical evolution of the Galaxy and stellar clusters, the origin of the elements
  • AGB stars as nuclear reaction laboratories: nuclear reaction rates as critical input for AGB modelling
Purpose of the Seminar
The seminar will bring together the best scientists working on Asymptotic Giant Branch (AGB) stars, and their students, for a week to:
Fig. 2. Interior of an AGB Star (Woodward et al., 2009)
  • Have the world’s best AGB experts communicate the state of the art in AGB astrophysics and educate all attendees, especially young researchers who are the experts of tomorrow.
  • Examine the critical issues affecting AGB stellar evolution modelling and nucleosynthesis.
  • Work together in extended formal and informal discussion/break-out sessions, including small working groups.
  • Plan the key international collaborative projects for the next five to ten years to solve the problems highlighted in steps 1-3, identify the most appropriate funding opportunities and areas of AGB physics on which we should focus our scientific effort.
Previous conference: Nuclei in the Cosmos XIII, Debrecen, Hungary, 07-11 July 2014 Next conference: Why Galaxies Care About AGB Stars III. Vienna, Austria, 28 July-1 August 2014