Figure 7. Range of extragalactic DM contributions (predominantly from the IGM and galaxy group halos) predicted by the model of Prochaska & Zheng (2019). The mean and 68% range of the distribution is shown in red. The nominal value of DM = -812 pc cmx 3 inferred for FRB 20190614D in Section 3.2 is shown here as a dotted black line.
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