出版社:SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要:Gamma-ray bursts, while rare, may be important contributors to galactic nucleosynthesis. Here
we consider the types of nucleosynthesis that can occur as material is ejected from a gamma-ray
burst accretion disk. We calculate the composition of material within the disk as it dissociates into
protons and neutrons and then use a parameterized outflowmodel to follownuclear recombination
in the wind. From the resulting nucleosynthesis we delineate the disk and outflow conditions in
which iron peak, r-process, or light p-process nuclei may form. In all cases the neutrinos have an
important impact on the final abundance distributions.