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arXiv · astro-ph/9612047

Neutrino-induced nucleosynthesis and the site of the r-process

W. C. Haxton·K. Langanke·Y. -Z. Qian·P. Vogel
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Abstract

If the r-process occurs deep within a Type II supernova, probably the most popular of the proposed sites, abundances of r-process elements may be altered by the intense neutrino flux. We point out that the effects would be especially pronounced for 8 isotopes that can be efficiently synthesized by the neutrino reactions following r-process freeze-out. We show that the observed abundances of these isotopes are entirely consistent with neutrino-induced nucleosynthesis, strongly arguing for a supernova r-process site. The deduced fluences place stringent constraints on the freeze-out radius and dynamic timescale of the r-process.

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W. C. Haxton, K. Langanke, Y. -Z. Qian, P. Vogel. 1996-12-05. Neutrino-induced nucleosynthesis and the site of the r-process. https://doi.org/10.1103/physrevlett.78.2694

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