D’Auria, J.M., Azuma, R.E., Bishop, S. et al. (23 more authors) (2004) The 21Na(p,gamma)22Mg reaction from Ec.m. = 200 to 1103 keV in novae and x-ray bursts. Physical Review C, 69 (6). Art. No. 065803. ISSN 1089-490X
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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | York RAE Import |
Date Deposited: | 07 Apr 2009 10:32 |
Last Modified: | 07 Apr 2009 10:32 |
Published Version: | http://dx.doi.org/10.1103/PhysRevC.69.065803 |
Status: | Published |
Publisher: | The American Physical Society. |
Identification Number: | 10.1103/PhysRevC.69.065803 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:7284 |