Appearance of Light Clusters in Post-bounce Evolution of Core-Collapse Supernovae - AstrophysicsReportar como inadecuado




Appearance of Light Clusters in Post-bounce Evolution of Core-Collapse Supernovae - Astrophysics - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Abstract: We explore the abundance of light clusters in core-collapse supernovae atpost-bounce stage in a quantum statistical approach. Adopting the profile of asupernova core from detailed numerical simulations, we study the distributionof light bound clusters up to alpha particles A=2-4 as well as heavy nucleiA > 4 in dense matter at finite temperature. Within the frame of acluster-mean field approach, the abundances of light clusters are evaluatedaccounting for self-energy, Pauli blocking and effects of continuumcorrelations. We find that deuterons and tritons, in addition to 3He and 4He,appear abundantly in a wide region from the surface of the proto-neutron starto the position of the shock wave. The appearance of light clusters may modifythe neutrino emission in the cooling region and the neutrino absorption in theheating region, and, thereby, influence the supernova mechanism.



Autor: Kohsuke Sumiyoshi Numazu College of Technology, Japan, Gerd Roepke University of Rostock, Germany

Fuente: https://arxiv.org/







Documentos relacionados