Astrophysical site(s) of r-process elements in galactic chemodynamical evolution model Yutaka Hirai, Yuhri Ishimaru, Takayuki R. Saitoh, Michiko S. Fujii, Jun Hidaka and Toshitaka Kajino EPJ Web of Conferences, 109 (2016) 02001 Published online: 12 February 2016 DOI: 10.1051/epjconf/201610902001