Fig. 23.
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Evolution of the secondary quantities according to the GRB afterglow standard model. The dashed-lines show the average value of each parameter. The dotted lines represent the power-law fit to the data. B has a slope −3/4 as expected from a magnetic field amplified by shock compression. θ0 is in rad, B is in G, and ṀW is in units of M⊙ yr−1.
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