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1 results

  • The slow-neutron capture process in low-metallicity asymptotic giant branch stars

  • Amanda I. Karakas, Maria Lugaro, Simon W. Campbell
  • Journal:
    Proceedings of the International Astronomical Union / Volume 5 / Issue S265 / August 2009
    Published online by Cambridge University Press:
    09 March 2010, pp. 57-60
    Print publication:
    August 2009
    • Article
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  • Elements heavier than iron are produced in asymptotic giant branch (AGB) stars via the slow neutron capture process (s process). Recent observations of s-process-enriched Carbon Enhanced Metal-Poor (CEMP) stars have provided an unprecedented wealth of observational constraints on the operation of the s-process in low-metallicity AGB stars. We present new preliminary full network calculations of low-metallicity AGB stars, including a comparison to the composition of a few s-process rich CEMP stars. We also discuss the possibility of using halo planetary nebulae as further probes of low-metallicity AGB nucleosynthesis.