The Large Dispersion and Scattering of FRB 20190520B are Dominated by the Host Galaxy

S. K. Ocker, J. M. Cordes, S. Chatterjee +8

The repeating FRB 20190520B is localized to a galaxy at $z=0.241$, much closer than expected given its dispersion measure $\mathrm{DM}=1205\pm 4\mathrm{pc}\mathrm{c}{\mathrm{m}}^{-3}$. Here we assess implication…