摘要
In this paper we assume that SMI and SNIb are the object sources of γ-ray lines,and they produce a large amount of 26Al diffused in the interstellar medium as a result of explosive nucleosynthesis; we also consider that stars have different mass and space distributions in the Galaxy,and put the explosive rates of SN as limits to total mass of stars in the Galaxy.We have calculated and discussed the radiant fluxes of γ-ray line of several nuclides.The calculation shows that SNII and SNIb are probably the major sources of 26Al,but its models about 44Ti need to be modified.
In this paper we assume that SMI and SNIb are the object sources of γ-ray lines,and they produce a large amount of 26Al diffused in the interstellar medium as a result of explosive nucleosynthesis; we also consider that stars have different mass and space distributions in the Galaxy,and put the explosive rates of SN as limits to total mass of stars in the Galaxy.We have calculated and discussed the radiant fluxes of γ-ray line of several nuclides.The calculation shows that SNII and SNIb are probably the major sources of 26Al,but its models about 44Ti need to be modified.
基金
Project supported by the National Natural Science Foundation of China
