English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

The innermost ejecta of core-collapse supernovae are considered to be thesources of some iron-group and heavier nuclei. The ejecta are predominantlydriven by neutrino heating, principally due to neutrino capture on freeneutrons and protons. Such neutrino interaction plays a crucial role forsetting neutron richness in the ejecta. Recent hydrodynamics work withsophisticated neutrino transport indicates that the ejecta are only mildlyneutron rich or even proton rich. In such conditions a wide variety oftrans-iron isotopes are synthesized, while the neutron richness is insufficientfor the production of r-process nuclei. In this capter, basic concepts ofnucleosynthesis in neutrino-heated ejecta and neutrino-driven winds ofcore-collapse supernovae are presented along with latest studies.Neutrino-heated ejecta indicate the early ejecta component within the first fewseocnds in which anisotropic convective activities of material above theneutrinosphere become important for nucleosynthesis. Then, neutrino-drivenwinds follow, which are approximately isotropic outflows emerging from thesurface of a proto-neutron star . According to such characteristics, studies ofnucleosynthesis here are based on recent multi-dimentional hydrodynamicssimulations and semi-alalytic wind solutions, respectively. These studiessuggest that trans-iron species up to the atomic mass number of 90, as well assome rare isotopes such as 48Ca and 92Mo, are produced in the neutrino-heatedejecta. Neutrino-driven winds are unlikely sources of r-process nuclei, butrather promising sources of proton-rich isotopes up to the atomic number of110.

Nucleosynthesis in neutrino-heated ejecta and neutrino-driven winds of core-collapse supernovae; neutrino-induced nucleosynthesis