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Fig. 11.

Fig. 11. Refer to the following caption and surrounding text.

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Distribution of the synchrotron spectral index from ‘Model 4’ of Miville-Deschênes et al. (2008) (blue), de la Hoz et al. (2023) (green) and our estimation (orange). The vertical dashed lines correspond to the weighted mean values of the respective distributions.

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