Uncertainties for ^22Na production in ONe novae

Details Uncertainties for ^22Na production in ONe novae Uncertainties for ^22Na production in ONe novae

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aps..dnp..bd06w&link_type=abstract

American Physical Society, Division of Nuclear Physics Meeting, October 20-23, 1999 Pacific Grove, CA, abstract #BD.06

Physics

Nuclear Physics

Scientific paper

We report preliminary results using network calculations on the uncertainty for the production of ^22Na in ONe novae due to the uncertainty in the reaction rates in the hot Ne-Na cycle. We have varied the rates for the nine reactions of the Ne-Na cycle within their uncertainties, and have run all permutations of upper and lower limits for the Ne-Na reactions. Our fast-running code uses temperature-density profiles generated by a full hydro- and thermodynamic treatment of ONe novae (José, Coc and Hernanz, astro-ph/9902357). The reaction rates were taken from the recent compilation of the NACRE collaboration, Thielemann's REACLIB library, and several recent experimental and theoretical papers. We also pinpoint the nuclear reactions which contribute most to the uncertainty in the final ^22Na abundances.

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