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The $^{14}$O($\alpha$,$p$)$^{17}$F reaction is one of the key reactionsinvolved in the breakout from the hot-CNO cycle to the rp-process in type Ix-ray bursts (XRBs). The resonant properties in the compound nucleus $^{18}$Nehave been investigated through resonant elastic scattering of $^{17}$F+$p$. Theradioactive $^{17}$F beam was separated by the CNS Radioactive Ion Beamseparator (CRIB) and bombarded a thick H$_2$ gas target at 3.6 MeV/nucleon. Therecoiling light particles were measured by three ${\Delta}$E-E silicontelescopes at laboratory angles of $\theta$$_{lab}$$\approx$3$^\circ$,10$^\circ$ and 18$^\circ$, respectively. Five resonances at $E_{x}$=6.15, 6.28,6.35, 6.85, and 7.05 MeV were observed in the excitation functions, and theirspin-parities have been determined based on an $R$-matrix analysis. Inparticular, $J^{\pi}$=1$^-$ was firmly assigned to the 6.15-MeV state whichdominates the thermonuclear $^{14}$O($\alpha$,$p$)$^{17}$F rate below 2 GK. Aswell, a possible new excited state in $^{18}$Ne was observed at$E_{x}$=6.85$\pm$0.11 MeV with tentative $J$=0 assignment. This state could bethe analog state of the 6.880 MeV (0$^{-}$) level in the mirror nucleus$^{18}$O, or a bandhead state (0$^+$) of the six-particle four-hole (6$p$-4$h$)band. A new thermonuclear $^{14}$O($\alpha$,$p$)$^{17}$F rate has beendetermined, and the astrophysical impact of multiple recent rates has beenexamined using an XRB model. Contrary to previous expectations, we find onlymodest impact on predicted nuclear energy generation rates from using reactionrates differing by up to several orders of magnitude.

Examination of the role of the $^{14}$O($\alpha$,$p$)$^{17}$F reaction rate in type I x-ray bursts