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Heavy element production in neutron star mergers and core-collapse supernovae
  OKC colloquia

Tuesday 07 May 2019
from 13:15 to 14:15
at FA32
Speaker : Almudena Arcones (TU-Darmstadt)
Abstract : Heavy elements like Gold and Uranium are produced by the rapid neutron capture process (r-process). Extreme neutron-rich conditions are necessary for this process, which is linked to neutron stars. Two possible astrophysical scenarios have been suggested as the site of the r-process: core-collapse supernovae (where neutron stars are born) and neutron star mergers. In 2017, gravitational waves were detected from the merger of two neutron stars, GW170817, opening a new multimessenger era. Observations of this event revealed that heavy, neutron-rich nuclei were produced. These nuclei are unstable and their decay leads to a kilonova light curve. In the talk, I will present the nucleosynthesis in neutron star mergers and discuss the critical contribution of core-collapse supernovae to the chemical history of the universe.

Nordita  | Last modified 08 April 2019 18:14  |  HELP