Elsevier

Nuclear Physics A

Volume 250, Issue 2, 6 October 1975, Pages 295-308
Nuclear Physics A

Hydrogen burning of 17O in the CNO cycle

https://doi.org/10.1016/0375-9474(75)90260-2Get rights and content

Abstract

The direct capture process in the 17O(p, γ)18F reaction has been used to determine the reduced proton widths of the states in 18F near the proton threshold. The observed upper limits on these widths are up to factors of 60 smaller than the previously assumed values implying a corresponding reduction of the stellar reaction rate for the 17O(p, α)14N reaction. These results together with results from previous work lead to the conclusion that the CNO cycle is tricycling with the reactions 17O(p,γ)18F(β+ν)18O(p, α)15N as the third cycle. The implications of these results on the equilibrium abundances of the elements synthesized in this cycle are discussed.

References (24)

  • C. Rolfs et al.

    Nucl. Phys.

    (1973)
  • C. Rolfs et al.

    Nucl. Phys.

    (1975)
  • C. Rolfs

    Nucl. Phys.

    (1973)
  • I. Berka et al.

    Bull. am. Phys. Soc.

    (1973)
    Nucl. Phys., to be...
  • C. Rolfs et al.
  • J. Millener, private communication...
  • W.A. Fowler et al.

    Thermonuclear reaction rates, II

    Ann. Rev. Astr. and Astrophys.

    (1975)
  • E.M. Burbidge et al.

    Rev. Mod. Phys.

    (1957)
  • G.R. Caughlan et al.

    Astrophys. J.

    (1962)
    G.R. Caughlan et al.

    Astrophys. J.

    (1964)
  • W.A. Fowler et al.

    Ann. Rev. Astr. and Astrophys.

    (1967)
  • W.A. Fowler et al.

    Geophys. J. Roy. Astr. Soc.

    (1962)
  • W.A. Fowler

    Mém. Soc. Roy. Sci. de Liège Ser. 5

    (1959)
  • Cited by (29)

    • Analysis of oxygen by charged particle bombardment

      1992, Nuclear Inst. and Methods in Physics Research, B
    • Laboratory approaches to nuclear astrophysics

      1981, Progress in Particle and Nuclear Physics
    View all citing articles on Scopus

    Supported in part by the National Science Foundation [MPS71-02670 A05].

    ††

    Present address: Kernphysikalisches Institut, Universitä Münster, West Germany.

    On leave from the National Science Foundation, Washington, DC.

    View full text