Neutrino-driven winds and nucleosynthesis

A. Arcones, G. Martínez-Pinedo, H. Th Janka, A. Schwenk, E. O'Connor, K. Langanke, C. J. Horowitz

Research output: Contribution to journalConference articlepeer-review

Abstract

Baryonic outflows from proto-neutron stars formed in core-collapse supernova explosions are one of the possible scenarios for the production of heavy elements via the r-process. If the ejected matter reaches supersonic velocities the outflow is known as neutrino-driven wind. We have studied the long-time evolution of proto-neutron stars with one- and two-dimensional hydrodynamical simulations and performed nucleosynthesis calculations with the resulting wind trajectories. We find that the present wind models are much closer than previous studies to provide suitable conditions for r-process nucleosynthesis. Moreover, we explored the effect of the wind terminations shock, nuclear physics input, and composition of the outer layers of the neutron star on the nucleosynthesis production.

Original languageEnglish
JournalProceedings of Science
StatePublished - 2008
Externally publishedYes
Event10th Symposium on Nuclei in the Cosmos, NIC 2008 - Mackinac Island, MI, United States
Duration: 27 Jul 20081 Aug 2008

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