D’Auria, J.M., Azuma, R.E., Bishop, S., Buchmann, L., Chatterjee, M.L., Chen, A.A., Engel, S., Gigliotti, D., Greife, U., Hunter, D., Hussein, A., Hutcheon, D., Jewett, C.C., José, J., King, J.D., Laird, A.M., Lamey, M., Lewis, R., Liu, W., Olin, A., Ottewell, D., Parker, P., Rogers, J., Ruiz, C., Trinczek, M. and Wrede, C. (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
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.
|Institution:||The University of York|
|Academic Units:||The University of York > Physics (York)|
|Depositing User:||York RAE Import|
|Date Deposited:||07 Apr 2009 10:32|
|Last Modified:||07 Apr 2009 10:32|
|Publisher:||The American Physical Society.|