Nucleosynthesis in black hole accretion flows feeding short GRBs

Katarzyna Wojczuk and Agnieszka Janiuk

We model the nucleosynthesis in black hole accretion disks (and it’s neighboring region) at the base of a gamma ray burst. The result is abundant production of light isotopes, as well as heavier elements with mass numbers in the range A∼60-80, which corresponds to the first maximum of nuclide production in the process of rapid neutron capture (r-process). Isotopes are created mainly on the surface of an accretion disk and in the area beyond it, where they are carried by the magnetized, neutrino-driven wind.

Proceedings of the Polish Astronomical Society, vol. 7, 337-340 (2018)

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