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. 2021 Jul 7;52(3):407–437. doi: 10.1007/s10686-021-09764-2

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Fig. 8 — Example of the ratio of the gravitational to electromagnetic luminosity distance in a modified gravity model, for different values of a parameter related to the energy scale of inflation. In the upper curve, the deviations of $d_{L}^{gw} (z)$ from $d_{L}^{em} (z)$ reaches 60% at large redshift (from [69])