
TY  - JOUR
A1  - Argast, Dominik 
A1  - Samland, Markus 
T1  - Constraints on the Astrophysical Nature of r-Process Nucleosynthesis Sites from Inhomogeneous Chemical Evolution Models
JF  - Publications of the Astronomical Society of Australia
JO  - Publ. Astron. Soc.  Aust.
Y1  - 2004
VL  - 21
IS  - 2
SP  - 161
EP  - 166
KW  - nuclear reactions, nucleosynthesis, abundances &#8212; stars: abundances &#8212; ISM: abundances &#8212; Galaxy: abundances &#8212; Galaxy: evolution &#8212; Galaxy: halo
UR  - https://doi.org/10.1071/AS04021 
N2  - We present a detailed inhomogeneous chemical evolution study that considers for the first-time neutron star mergers as major r-process sources, and compare this scenario with the ones in which lower-mass (in the range 8&#8211;10 M&odot;) or higher-mass core-collapse supernovae (with masses &#x2265;20 M&odot;) act as dominant r-process sites. We conclude that it is not possible at present to distinguish between the lower-mass and higher-mass supernovae scenarios within the framework of inhomogeneous chemical evolution. However, neutron-star mergers seem to be ruled out as the dominant r-process source, since their low rates of occurrence would lead to r-process enrichment that is not consistent with observations. 
ER  -

