The role of gravitational supernovae in the Galactic evolution of the Li, Be and B isotopes Abia, Carlos Isern, Jordi Lisenfeld , Ute Nuclear reactions Nucleosynthesis Abundances Supernovae Galaxy The observed Be and B relationships with metallicity clearly support the idea that both elements have a primary origin and that are produced by the same class of objects. Spallation by particles accelerated during gravitational events (SNII, SNIb/c) seems to be a likely origin. We show, in the context of a model of chemical evolution, that it is possible to solve the Li, Be and B abundance puzzle with the yields recently proposed by Ramaty et al. (1997), provided that SNII are unable to significantly accelerate helium nuclei and that different mechanisms are allowed to act simultaneously. 2013-11-06T14:08:24Z 2013-11-06T14:08:24Z 1998 info:eu-repo/semantics/article Abia, C.; Isern, J.; Lisenfeld, U. The role of gravitational supernovae in the Galactic evolution of the Li, Be and B isotopes. Monthly Notices of the Royal Astronomical Society, 299(4): 1007-1012. [http://hdl.handle.net/10481/29052] 0035-8711 1365-2966 doi: 10.1046/j.1365-8711.1998.01821.x arXiv:astro-ph/9803246v2 http://hdl.handle.net/10481/29052 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ info:eu-repo/semantics/openAccess Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License Oxford University Press (OUP); Royal Astronomical Society