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Fig. A.3.
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Visual extinction, AV, of GRB 190106A. The extracted 1D VLT/X-shooter GRB afterglow spectrum is shown in black, the intrinsic power-law shape derived from the Swift/XRT photon index in blue, and the best-fit model with AV = 0.27 ± 0.03 mag (assuming an SMC extinction curve) in red.
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