243 articles – 3618 Notices  [english version]
 HAL : in2p3-00129407, version 1
 arXiv : astro-ph/0008241
 Physical Review C 62 (2000) 045803
 On the $^{21}Na(p,\gamma)^{22}$Mg thermonuclear rate for $^{22}$Na production in novae
 (2000)
 Classical novae are potential sources of gamma-rays, like the 1.275 MeV gamma emission following 22Na beta decay, that could be detected by appropriate instruments on board of future satellites like INTEGRAL. It has been shown that the production of 22Na by novae is affected by the uncertainty on the 21Na(p,gamma)22Mg rate and in particular by the unknown partial widths of the Ex = 5.714 MeV, J^pi = 2^+, 22Mg level. To reduce these uncertainties, we performed shell model calculations with the OXBASH code, compared the results with available spectroscopic data and calculated the missing partial widths. Finally, we discuss the influence of these results on the 21Na(p,gamma)22Mg reaction rate and 22Na synthesis.
 Thème(s) : Physique/Astrophysique/Cosmologie et astrophysique extra-galactiquePhysique/Physique Nucléaire Théorique
 Lien vers le texte intégral : http://fr.arXiv.org/abs/astro-ph/0008241
 in2p3-00129407, version 1 http://hal.in2p3.fr/in2p3-00129407 oai:hal.in2p3.fr:in2p3-00129407 Contributeur : Dominique Girod <> Soumis le : Mercredi 7 Février 2007, 11:46:58 Dernière modification le : Mercredi 7 Février 2007, 12:10:14