Publication Abstracts

Delano and Cameron 1971

Delano, M.D., and A.G.W. Cameron, 1971: Nucleosynthesis in neutron rich supernova ejecta. Astrophys. Space Sci., 10, 203-226, doi:10.1007/BF00704083.

A nuclear reaction network of 903 different, strong and electromagnetic reactions, linking 107 chemical constituents is used to study the elements synthesized in the neutron rich material, ejected in supernova explosions. A large number of three body reactions virtually eliminates the usual bottle neck at the A=5 mass gap.

For initially high temperatures and densities, T = 1010K and ρ = 7×108 gm/cm3, with expansion time scales of 10-3-10-2 sec, three differentn top ratios, n/p = 4, n/p = 3/2, and n/p ∼ 1, are considered for the ejected matter. In all three cases, the material synthesized is preponderantly heavy. For the n/p = 4 model, the conditions at the charged particle freeze-out are ideal for the "r-process". The onset of this rapid neutron capture phase is explicitly shown with a sequence of time lapse abundance plots.

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BibTeX Citation

  author={Delano, M. D. and Cameron, A. G. W.},
  title={Nucleosynthesis in neutron rich supernova ejecta},
  journal={Astrophysics and Space Science},

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RIS Citation

ID  - de05400j
AU  - Delano, M. D.
AU  - Cameron, A. G. W.
PY  - 1971
TI  - Nucleosynthesis in neutron rich supernova ejecta
JA  - Astrophys. Space Sci.
JO  - Astrophysics and Space Science
VL  - 10
SP  - 203
EP  - 226
DO  - 10.1007/BF00704083
ER  -

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