Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..apr.s2003b&link_type=abstract
American Physical Society, April Meeting, April 28 - May 1, 2001 Washington, DC Bulletin of the American Physical Society, Vol.
Astronomy and Astrophysics
Astrophysics
Scientific paper
Knowledge of the ^17F(p,γ)^18Ne reaction rate is important for understanding the nucleosynthesis and gamma-ray production in stellar explosions such as novae and x-ray bursts, but this rate was uncertain because the properties of an expected but previously unobserved 3^+ state in ^18Ne were not known. This state provides an s-wave resonance for the ^17F+p system and, depending on its excitation energy, could dominate the stellar reaction rate at temperatures above 0.2 GK. Previous calculations of the excitation energy varied by 300 keV which resulted in an uncertainty in the rate which spanned orders of magnitude. We have observed and determined the properties of this missing 3^+ state by measuring the ^1H(^17F,p)^17F excitation function with a radioactive ^17F beam at the ORNL Holifield Radioactive Ion Beam Facility (HRIBF). We find that the state lies at a center-of-mass energy of Er = 559.8 ± 2.5 keV and has a width of Γ = 18 ± 2 keV. The method and astrophysical implications of our measurement will be discussed.
No associations
LandOfFree
Explosive ^17F(p,γ)^18Ne Burning Through the 3^+ State in ^18Ne does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Explosive ^17F(p,γ)^18Ne Burning Through the 3^+ State in ^18Ne, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Explosive ^17F(p,γ)^18Ne Burning Through the 3^+ State in ^18Ne will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1184061