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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 :
AuthorsEmailORCID
Margerin, VUNSPECIFIEDUNSPECIFIED
Lotay, GUNSPECIFIEDUNSPECIFIED
Woods, PJUNSPECIFIEDUNSPECIFIED
Aliotta, MUNSPECIFIEDUNSPECIFIED
Christian, GUNSPECIFIEDUNSPECIFIED
Davids, BUNSPECIFIEDUNSPECIFIED
Davinson, TUNSPECIFIEDUNSPECIFIED
Doherty, DTUNSPECIFIEDUNSPECIFIED
Fallis, JUNSPECIFIEDUNSPECIFIED
Howell, DUNSPECIFIEDUNSPECIFIED
Kirsebom, OSUNSPECIFIEDUNSPECIFIED
Mountford, DJUNSPECIFIEDUNSPECIFIED
Rojas, AUNSPECIFIEDUNSPECIFIED
Ruiz, CUNSPECIFIEDUNSPECIFIED
Tostevin, JAUNSPECIFIEDUNSPECIFIED
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 : 21 Aug 2015 17:53
URI: http://epubs.surrey.ac.uk/id/eprint/808276

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