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r-Process Nucleosynthesis in Hot Accretion Disk Flows from Black Hole - Neutron Star Mergers
R. Surman, G. C. McLaughlin, M. Ruffert +2
We consider hot accretion disk outflows from black hole - neutron star mergers in the context of the nucleosynthesis they produce. We begin with a three dimensional numerical model…
Fission Cycling in a Supernova r-process
J. Beun, G. C. McLaughlin, R. Surman +1
Recent halo star abundance observations exhibit an important feature of consequence to the r-process: the presence of a main r-process between the second and third peaks which is c…
Neutrinos, Fission Cycling, and the r-process
J. Beun, G. C. McLaughlin, R. Surman +1
It has long been suggested that fission cycling may play an important role in the r-process. Fission cycling can only occur in a very neutron rich environment. In traditional calcu…
Supernova Neutrinos: The Accretion Disk Scenario
G. C. McLaughlin, R. Surman
Neutrinos from core collapse supernovae can be emitted from a rapidly accreting disk surrounding a black hole, instead of the canonical proto-neutron star. For Galactic events, det…
Nucleosynthesis in the Outflow from Gamma Ray Burst Accretion Disks
R. Surman, G. C. McLaughlin, W. R. Hix
We examine the nucleosynthesis products that are produced in the outflow from rapidly accreting disks. We find that the type of element synthesis varies dramatically with the degre…
Neutrino Scattering, Absorption and Annihilation above the accretion disks of Gamma Ray Bursts
J. P. Kneller, G. C. McLaughlin, R. Surman
The central engine that drives gamma ray burst (GRB) explosions may derive from the ability of electrons/positrons and nucleons to tap into the momentum and energy from the large n…