Open AccessThe role of gravitational supernovae in the Galactic evolution of the Li, Be and B isotopes
Author(s) -
Abia Carlos,
Isern Jordi,
Lisenfeld Ute
Publication year - 1998
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.1998.01821.x
Subject(s) - physics , supernova , astrophysics , spallation , metallicity , context (archaeology) , chemical evolution , abundance (ecology) , astronomy , galaxy , neutron , nuclear physics , paleontology , fishery , biology
The observed Be and B relationships with metallicity clearly support the idea that both elements have a primary origin and that they are produced by the same class of objects. Spallation by particles accelerated during gravitational supernova 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., provided that SNII are unable to accelerate helium nuclei significantly and that different mechanisms are allowed to act simultaneously.