Fig. 4
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Same PSR data as plotted in Fig. 3 but with the four subsamples merged (blue symbols). Additionally, data points for the SNRs presented in Abadi et al. (2024) are reproduced (red symbols). The graph highlights the similarity not only between the PSR spectra but also between the PSR and SNR spectral behaviours. The curved solid line is the normalised absorption, A(x) = exp(−x−2.1).
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