Neutron Captures in the r-Process

Details Neutron Captures in the r-Process Neutron Captures in the r-Process

2004-04-12

arxiv.org/abs/astro-ph/0404230v1

Astronomy and Astrophysics

Astrophysics

10 pages, 6 figures, talk presented at RIA Theory Workshop On "The r-Process", INT Seattle, January 2004; to appear in the pro

Scientific paper

The r-process involves neutron-rich nuclei far off stability for which no experimental cross sections are known. Therefore, one has to rely on theory. The difficulties in the predictions are briefly addressed. To investigate the impact of altered rates, a comparison of r-process production in hot bubble models with largely varied rates is shown. Due to the (n,gamma)-(gamma,n) equilibrium established at the onset of the r-process, only late-time neutron captures are important which mainly modify the abundances around the third r-process peak.

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