According to existing models, the proportions between the different isotopes in a dust grain formed in a supernova will differ from the proportions of the same isotopes in a grain formed in an AGB star, which in turn will differ from isotopic proportions
According to existing models, the proportions between the different isotopes in a dust grain formed in a supernova will differ from the proportions of the same isotopes in a grain formed in an AGB star, which in turn will differ from isotopic proportions
根据现有模型，产生自超新星的尘埃颗粒的同位素比例会与产生自AGB星的尘埃有所不同，而且以其他途径产生的颗粒其同位素比例也会不同。