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Comparison of two terms in NFRC Dashed curve, the function defined by eqn (12), which imitates the putative evolution of ϕP/B. According to eqn (9) this function constitutes the first term of the NFRC. Continuous curve, second term in NFRC (calculated using the same equation). Note different scales. According to this simulated evolution, NFRC and ϕP/B are essentially identical except at the earliest times.
