Nuclear reaction rates in dense carbon-oxygen mixtures

Details Nuclear reaction rates in dense carbon-oxygen mixtures Nuclear reaction rates in dense carbon-oxygen mixtures

May 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...372..259o&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 372, May 1, 1991, p. 259-266.

Statistics

Computation

47

Binary Mixtures, Nuclear Astrophysics, Nuclear Reactions, Reaction Kinetics, Stellar Evolution, White Dwarf Stars, Carbon, Computational Astrophysics, Dense Plasmas, Monte Carlo Method, Oxygen, Supernovae

Scientific paper

New, first principles calculations of nuclear reaction rates in dense carbon-oxygen mixtures appropriate to Type I supernova progenitors are presented for both fluid and bcc crystalline-solid phases, based on accurate Monte Carlo evaluations of the screening potentials and a correct treatment of the quantum-statistical effects. A blocking effect of oxygen is discovered in the pycnonuclear reaction of carbon. The results are compared with the existing theories in the limit of one-component plasma cases, both for the screening potentials and for the reaction rates. Examples of the carbon ignition curve are shown.

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