Abstract:
The electron-capture decay rate of 44Ti strongly depends on the number of atomic electrons that are bound to the nucleus. Recent x-ray observations of the Cas A and RXJ0852.0-4622 supernova remnants suggest that conditions of high temperatures and low densities exist in these objects. Under such conditions, the half-life of 44Ti would be significantly longer than its laboratory value. This effect implies that only an upper limit on the mass of 44Ti ejected by supernovae can be deduced from gamma-ray observations of these two supernova remnants.
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© 2002 Kluwer Academic Publishers
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Norman, E.B., Browne, E. (2002). On the Half-Life of 44Ti in Young Supernova Remnants. In: Manuel, O. (eds) Origin of Elements in the Solar System. Springer, Boston, MA. https://doi.org/10.1007/0-306-46927-8_18
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DOI: https://doi.org/10.1007/0-306-46927-8_18
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