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Fig. 9

image

Illustration of the main cooling processes balancing the radioactive decay heating at all ejecta depths in the model s15p2. We show each dominant cooling rate (stepping down from the rate having the largest peak value at any depth) normalized to the local heating rate. The term “NT” stands for nonthermal processes (in this context nonthermal excitation and ionization) and “COL” stands for collisional processes (i.e., collisional excitation).

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