Speaker
Rebecca Surman
(Union College)
Description
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 outflow model to follow nuclear 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.
Author
Rebecca Surman
(Union College)
Co-author
Prof.
Gail McLaughlin
(North Carolina State University)
