The r-Process in Black Hole Winds

Understand

All the current r-process scenarios relevant to core-collapse supernovae are facing severe difficulties.

• In particular, recent core-collapse simulations with neutrino transport show no sign of a neutron-rich wind from the proto-neutron star.
• In this paper, we discuss nucleosynthesis of the r-process in an alternative astrophysical site, "black hole winds", which are the neutrino-driven outflow from the accretion torus around a black hole.
• This condition is assumed to be realized in double neutron star mergers, neutron star - black hole mergers, or hypernovae.