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Projects: Projects, Project Ideas
(the “kill radius”) and the resulting collision of the blast with solar wind. Will the supernova reach 1 AU? How does the answer depend on the supernova explosion energy? Distance? Interstellar density?
abundances and presolar grains. How does the result depend on initial composition? How good is the waiting point approximation?
key reaction rates. Propagate uncertainties in nuclear reation rates via Monte Carlo to evaluate the uncertainties in the BBN predictions.
neutrino species, modificiation of the gravitational constant, and neutrino degeneracy. For a more challenging calculation, consider the effect of dark matter decays that dissociate 4He. For each of these, what is the effect on the light elements? How can we use light element and cosmological (e.g., CMB) observations to constrain these scenarios?