21Na(p,gamma)22Mg reaction and oxygen-neon novae.

Bishop, S; Azuma, R E; Buchmann, L; Chen, A A; Chatterjee, M L; D'Auria, J M; Engel, S; Gigliotti, D; Greife, U; Hernanz, M; Hunter, D; Hussein, A; Hutcheon, D; Jewett, C; José, J; King, J; Kubono, S; Laird, A M; Lamey, M; Lewis, R; Liu, W; Michimasa, S; Olin, A; Ottewell, D; Parker, P D; Rogers, J G; Strieder, F; Wrede, C

Bishop, S; Azuma, R E; Buchmann, L; Chen, A A; Chatterjee, M L; D'Auria, J M; Engel, S; Gigliotti, D; Greife, U; Hernanz, M; Hunter, D; Hussein, A; Hutcheon, D; Jewett, C; José, J; King, J; Kubono, S; Laird, A M; Lamey, M; Lewis, R; Liu, W; Michimasa, S; Olin, A; Ottewell, D; Parker, P D; Rogers, J G; Strieder, F; Wrede, C.

Afiliación

Bishop S; Simon Fraser University, Burnaby, British Columbia, Canada.

Phys Rev Lett ; 90(16): 162501, 2003 Apr 25.

Article en En | MEDLINE | ID: mdl-12731972

ABSTRACT

ABSTRACT

The 21Na(p,gamma)22Mg reaction is expected to play an important role in the nucleosynthesis of 22Na in oxygen-neon novae. The decay of 22Na leads to the emission of a characteristic 1.275 MeV gamma-ray line. This report provides the first direct measurement of the rate of this reaction using a radioactive 21Na beam, and discusses its astrophysical implications. The energy of the important state was measured to be E(c.m.)=205.7+/-0.5 keV with a resonance strength omegagamma=1.03+/-0.16(stat)+/-0.14(sys) meV.

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2003 Tipo del documento: Article País de afiliación: Canadá

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Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Phys Rev Lett Año: 2003 Tipo del documento: Article País de afiliación: Canadá