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- W4386415651 abstract "The innermost ejecta of core-collapse supernovae are considered to be the sources of some iron-group and trans-iron nuclei. The ejecta are predominantly driven by neutrino heating, principally due to neutrino capture on free neutrons and protons. Such neutrino interactions play a crucial role for setting neutron richness in the ejecta. Recent hydrodynamical work indicates that the ejecta are only mildly neutron-rich or even proton-rich. Under such conditions, a wide variety of iron-group and trans-iron isotopes are synthesized, while the inferred neutron richness appears insufficient for producing r-process nuclei. In this chapter, basic concepts of nucleosynthesis in neutrino-heated ejecta and neutrino-driven winds of core-collapse supernovae are presented along with some latest results in the literature. Here, “neutrino-heated ejecta” are referred to the early component within the first few seconds, in which anisotropic convective activities of material above the neutron star surface become important for nucleosynthesis. These are followed by “neutrino-driven winds,” which are approximately isotropic outflows emerging from the surface of a proto-neutron star. For these reasons, studies of nucleosynthesis presented here are based on recent multi-dimensional hydrodynamical simulations and semi-analytic wind solutions, respectively. These studies suggest that light trans-iron species up to atomic mass number of 90 are produced in neutrino-heated ejecta. Neutrino-driven winds are unlikely sources of r-process nuclei, but rather promising sources of proton-rich isotopes up to atomic number of 110." @default.
- W4386415651 created "2023-09-05" @default.
- W4386415651 creator A5061996870 @default.
- W4386415651 date "2023-01-01" @default.
- W4386415651 modified "2023-09-30" @default.
- W4386415651 title "Nucleosynthesis in Neutrino-Heated Ejecta and Neutrino-Driven Winds of Core-Collapse Supernovae: Neutrino-Induced Nucleosynthesis" @default.
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- W4386415651 doi "https://doi.org/10.1007/978-981-19-6345-2_89" @default.
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