Dr. Yutaka Hirai gave an excellent talk on Galactic archaeology with r-process elements. He showed that his high-resolution simulations of galaxies suggest that binary neutron star mergers play an important role in enriching r-process elements in dwarf galaxies and the Milky Way. He also showed that r-process enhanced stars in the Milky Way tend to form in dwarf galaxies previously accreted to the Milky Way. He demonstrated that the abundance of r-process elements in stars can be used as an indicator for the early evolution of the Milky Way.

Reported by Shigehiro Nagataki