r -Process Nucleosynthesis in Hot Accretion Disk Flows from Black Hole-Neutron Star Mergers
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- 8 May 2008
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 679 (2), L117-L120
- https://doi.org/10.1086/589507
Abstract
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 of a black hole - neutron star merger and calculate the neutrino and antineutrino fluxes emitted from the resulting accretion disk. We then follow the element synthesis in material outflowing the disk along parameterized trajectories. We find that at least a weak r-process is produced, and in some cases a main r-process as well. The neutron-rich conditions required for this production of r-process nuclei stem directly from the interactions of the neutrinos emitted by the disk with the free neutrons and protons in the outflow.Comment: 10 pages, 4 figures, one table and additional references addeKeywords
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This publication has 25 references indexed in Scilit:
- Structure and nuclear composition of general relativistic, magnetohydrodynamic outflows from neutrino-cooled disksNew Astronomy, 2008
- Two-dimensional hydrodynamic core-collapse supernova simulations with spectral neutrino transportAstronomy & Astrophysics, 2006
- A Study of Compact Object Mergers as Short Gamma‐Ray Burst ProgenitorsThe Astrophysical Journal, 2006
- Neutrino-Induced Nucleosynthesis ofNuclei: TheProcessPhysical Review Letters, 2006
- The r-process nucleosynthesis: a continued challenge for nuclear physics and astrophysicsNuclear Physics A, 2005
- Neutron star mergers versus core-collapse supernovae as dominant r-process sites in the early GalaxyAstronomy & Astrophysics, 2004
- Black Hole–Neutron Star Mergers as Central Engines of Gamma-Ray BurstsThe Astrophysical Journal, 1999
- [CLC][ITAL]r[/ITAL][/CLC]-Process in Neutron Star MergersThe Astrophysical Journal, 1999
- Modified Newtonian Potentials for the Description of Relativistic Effects in Accretion Disks around Black HolesThe Astrophysical Journal, 1996
- Black-hole-neutron-star collisionsThe Astrophysical Journal, 1974