TY - JOUR
T1 - Neutrino process nucleosynthesis and the 11B/10B ratio
AU - Olive, Keith A.
AU - Prantzos, Nikos
AU - Scully, Sean
AU - Vangioni-Flam, Elisabeth
PY - 1994/4/1
Y1 - 1994/4/1
N2 - We consider the evolution of the light elements (Li, Be, and B) incorporating the effects of their production by both neutrino process and cosmic-ray nucleosynthesis. We test the viability of the neutrino process to resolve the long standing problem of the 11B/10B isotopic ratio which amounts to 4 at the time of the formation of the solar system. This hypothesis may be ultimately constrained by the B/Be ratio observed in halo stars. Though we are able to obtain a solar isotopic ratio 11B/10B ≃ 4, the current paucity of data at low metallicity prevents us from making a definitive conclusion regarding the resolution of this problem. We show, however, that neutrino process nucleosynthesis leads to a relatively model independent prediction that the B/Be elemental ratio is large (> 50) at low metallicities ([Fe/H] < -3.0), if Be is produced as a secondary element (as is the case in the conventional scenario of galactic cosmic-ray nucleosynthesis).
AB - We consider the evolution of the light elements (Li, Be, and B) incorporating the effects of their production by both neutrino process and cosmic-ray nucleosynthesis. We test the viability of the neutrino process to resolve the long standing problem of the 11B/10B isotopic ratio which amounts to 4 at the time of the formation of the solar system. This hypothesis may be ultimately constrained by the B/Be ratio observed in halo stars. Though we are able to obtain a solar isotopic ratio 11B/10B ≃ 4, the current paucity of data at low metallicity prevents us from making a definitive conclusion regarding the resolution of this problem. We show, however, that neutrino process nucleosynthesis leads to a relatively model independent prediction that the B/Be elemental ratio is large (> 50) at low metallicities ([Fe/H] < -3.0), if Be is produced as a secondary element (as is the case in the conventional scenario of galactic cosmic-ray nucleosynthesis).
KW - Cosmic rays
KW - Nuclear reactions, nucleosynthesis, abundances
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U2 - 10.1086/173922
DO - 10.1086/173922
M3 - Article
AN - SCOPUS:12044252821
SN - 0004-637X
VL - 424
SP - 666
EP - 670
JO - Astrophysical Journal
JF - Astrophysical Journal
IS - 2
ER -