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Yields of Radionuclides

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Contact: F.X.Timmes
my one page vitae,
full vitae,
research statement, and
teaching statement.
Freeze-out yields of radioactivities in core-collapse supernovae - 2011

In this paper, we explore the nucleosynthesis trends from freeze-out expansions in core-collapse supernovae. Our results suggest that isotopes in the mass range 12 ≤ A ≤ 122 that are produced during the freeze-out expansions may be classified in two families. The isotopes of the first family manifest a common mass fraction evolutionary profile, whose specific shape per isotope depends on the characteristic transition between two equilibrium states (equilibrium state transition) during each type of freeze-out expansion. The first family includes the majority of isotopes in this mass range. The second family is limited to magic nuclei and isotopes in their locality, which do not sustain any transition, become nuclear flow hubs, and dominate the final composition.

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T & ρ evolutions
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Select radioactivities
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Second family near magic number 28