R-Process Nucleosynthesis and Galactic Chemical Evolution of the Ba Peak Elements

Details R-Process Nucleosynthesis and Galactic Chemical Evolution of the Ba Peak Elements R-Process Nucleosynthesis and Galactic Chemical Evolution of the Ba Peak Elements

Nov 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003chphl..20.2084s&link_type=abstract

Chinese Physics Letters, Volume 20, Issue 11, pp. 2084-2087 (2003).

Physics

1

Scientific paper

Nucleosynthesis yield is a very important parameter of the Galactic chemical evolution model. We adopt the same method as Tsujimoto to derive the r-process yields of various mass SNe II at low metallicities from the new observed [Ba/Fe]-[Fe/H] trend. Furthermore, we present a new formula of r-process nucleosynthesis yields. We also consider the various neutron sources and set up four cases, namely A, B, C and D to calculate the abundance evolution of Ba peak elements in the solar neighbourhood. Our results show that the r-process could be associated with a secondary event in massive stars (i.e., 18 Modot

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