Fig. 2.
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Ratio of 17O(α,γ)21Ne reaction rates to the rate of Caughlan & Fowler (1988, cf88 label). The red curve (label bg13) is the recommended rate of Best et al. (2013). The green curve (label ta19) is the experimental lower limit from Taggart et al. (2019). The shaded area indicates the approximate range of temperatures in the helium-burning core of massive stars.
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