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Inverse Kinematic Study of the Al26g(d,p)Al27 Reaction and Implications for Destruction of Al26 in Wolf-Rayet and Asymptotic Giant Branch Stars

Margerin, V, Lotay, G, Woods, PJ, Aliotta, M, Christian, G, Davids, B, Davinson, T, Doherty, DT, Fallis, J, Howell, D , Kirsebom, OS, Mountford, DJ, Rojas, A, Ruiz, C and Tostevin, JA (2015) Inverse Kinematic Study of the Al26g(d,p)Al27 Reaction and Implications for Destruction of Al26 in Wolf-Rayet and Asymptotic Giant Branch Stars Physical Review Letters, 115, 062701.

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Abstract

In Wolf-Rayet and asymptotic giant branch (AGB) stars, the Al26g(p,γ)Si27 reaction is expected to govern the destruction of the cosmic γ-ray emitting nucleus Al26. The rate of this reaction, however, is highly uncertain due to the unknown properties of key resonances in the temperature regime of hydrogen burning. We present a high-resolution inverse kinematic study of the Al26g(d,p)Al27 reaction as a method for constraining the strengths of key astrophysical resonances in the Al26g(p,γ)Si27 reaction. In particular, the results indicate that the resonance at Er=127  keV in Si27 determines the entire Al26g(p,γ)Si27 reaction rate over almost the complete temperature range of Wolf-Rayet stars and AGB stars.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Physics
Authors :
NameEmailORCID
Margerin, V
Lotay, G
Woods, PJ
Aliotta, M
Christian, G
Davids, B
Davinson, T
Doherty, DT
Fallis, J
Howell, D
Kirsebom, OS
Mountford, DJ
Rojas, A
Ruiz, C
Tostevin, JA
Date : 5 August 2015
Identification Number : 10.1103/PhysRevLett.115.062701
Related URLs :
Additional Information : © 2015 American Physical Society
Depositing User : Symplectic Elements
Date Deposited : 21 Aug 2015 17:53
Last Modified : 31 Oct 2017 17:35
URI: http://epubs.surrey.ac.uk/id/eprint/808276

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