Neutrino effects before, during and after the freezeout of the R-process

被引：0

作者：

Terasawa, M ^{[1
]}

Langanke, K ^{[1
]}

Mathews, GJ ^{[1
]}

Kajino, T ^{[1
]}

机构：

[1] Univ Tokyo, Ctr Nucl Study, Wako, Saitama 3510198, Japan

来源：

ORIGIN OF MATTER & EVOLUTION OF GALAXIES 2003 | 2005年

关键词：

D O I：

10.1142/9789812702739_0029

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the effects of neutrino interactions before, during and after the operation of the r-process in a neutrino-driven wind model with a short dynamical timescale. We find that charged- and neutral-current interactions can have specific unique effects on the final abundances. Early on, charged-current interactions determine the electron fraction, while later on, neutrino-induced neutron emission can continue to provide a slight neutron exposure even after the freezeout of the r-process. We propose that observations of an enhanced odd-even effect in the final abundances and a suppression of light nuclei in r-process material might be used to identify the neutrino fluxes in operation near the freezeout of the r-process.

引用

页码：293 / 303

页数：11

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