Heavy Element Synthesis in the Outflow from Black Hole Accretion Disks

Details Heavy Element Synthesis in the Outflow from Black Hole Accretion Disks Heavy Element Synthesis in the Outflow from Black Hole Accretion Disks

Apr 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aps..apre15002s&link_type=abstract

American Physical Society, APS April Meeting, April 14-17, 2007, abstract #E15.002

Physics

Scientific paper

The r process, the rapid neutron capture nucleosynthesis process responsible for half of the elements heavier than iron, is thought to occur in core-collapse supernovae, though the exact site and mechanism is still uncertain. Here we examine an alternate site - the outflows from a very rapidly accreting disk around a stellar mass black hole. We begin with analytic models of black hole accretion disks and use a parameterized outflow to follow the ejected material. We show that neutron capture nucleosynthesis is possible in a wide range of trajectories from very rapidly accreting disks, and that in all cases the neutrino flux emitted from the disk strongly influences the resulting nucleosynthesis.

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