Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aps..aprh15003m&link_type=abstract
American Physical Society, 2008 APS April Meeting and HEDP/HEDLA Meeting, April 11-15, 2008, abstract #H15.003
Astronomy and Astrophysics
Astrophysics
Scientific paper
The properties of a resonance at 183 keV are important for understanding the ^17 O(p,α)^14N and ^17O(p,γ)^18F reaction rates at nova temperatures and was recently reported to significantly increase the (p,α) reaction rate. A method involving the bombardment of a hydrogen filled target chamber was recently developed at ORNL for measuring the strength and energy of (p, α) resonances and was applied to measure this resonance in ^17O(p, α)^14N. The strength of the resonance was confirmed and post-processing nova nucleosynthesis simulations show the new ^17O(p,α)^14N reaction rate significantly decreases ^18F production in low mass ONeMg novae but has little effect on more energetic novae [Moazen et. al. Phys. Rev. C 75 065801 (2007)]. Results and astrophysical implications will be presented as well as future plans to measure ^18F(p,α)^15O with this technique. ORNL is managed by UT Battelle for the US DOE
Bardayan Daniel W.
Blackmon Jeff C.
Chae K. Y.
Chipps K.
Domizioli C. P.
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