The 21Na(p, γ)22Mg reaction from E c.m.=200 to 1103 keV in novae and x-ray bursts

  • J. M. D'Auria
  • , R. E. Azuma
  • , S. Bishop
  • , L. Buchmann
  • , M. L. Chatterjee
  • , A. A. Chen
  • , S. Engel
  • , D. Gigliotti
  • , U. Greife
  • , D. Hunter
  • , A. Hussein
  • , D. Hutcheon
  • , C. C. Jewett
  • , J. José
  • , J. D. King
  • , A. M. Laird
  • , M. Lamey
  • , R. Lewis
  • , W. Liu
  • , A. Olin
  • D. Ottewell, P. Parker, J. Rogers, C. Ruiz, M. Trinczek, C. Wrede

Research output: Contribution to journalArticlepeer-review

86 Scopus citations

Abstract

The long-lived radioactive nuclide 22Na (t1/2=2.6 yr) is an astronomical observable for understanding the physical processes of oxygen-neon novae. Yields of 22Na in these events are sensitive to the unknown total rate of the 21Na(p, γ)22Mg reaction. Using a high intensity 21Na beam at the TRIUMF-ISAC facility, the strengths of seven resonances in 22Mg, of potential astrophysical importance, have been directly measured at center of mass energies from Ec.m.=200 to 1103 keV. We report the results obtained for these resonances and their respective contributions to the 21Na(p, γ)22Mg rate in novae and x-ray bursts, and their impact on 22Na production in novae.

Original languageEnglish
Article number065803
Pages (from-to)065803-1-065803-16
JournalPhysical Review C - Nuclear Physics
Volume69
Issue number6
DOIs
StatePublished - Jun 2004
Externally publishedYes

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