Na21(p,γ)Mg22Reaction and Oxygen-Neon Novae Academic Article uri icon

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abstract

  • The 21Na(p,gamma)22Mg reaction is expected to play an important role in the nucleosynthesis of 22Na in oxygen-neon novae. The decay of 22Na leads to the emission of a characteristic 1.275 MeV gamma-ray line. This report provides the first direct measurement of the rate of this reaction using a radioactive 21Na beam, and discusses its astrophysical implications. The energy of the important state was measured to be E(c.m.)=205.7+/-0.5 keV with a resonance strength omegagamma=1.03+/-0.16(stat)+/-0.14(sys) meV.

authors

  • Bishop, S
  • Azuma, RE
  • Buchmann, L
  • Chen, Alan
  • Chatterjee, ML
  • D’Auria, JM
  • Engel, S
  • Gigliotti, D
  • Greife, U
  • Hernanz, M
  • Hunter, D
  • Hussein, A
  • Hutcheon, D
  • Jewett, C
  • José, J
  • King, J
  • Kubono, S
  • Laird, AM
  • Lamey, M
  • Lewis, Ryan
  • Liu, W
  • Michimasa, S
  • Olin, A
  • Ottewell, D
  • Parker, PD
  • Rogers, JG
  • Strieder, F
  • Wrede, C

publication date

  • April 25, 2003