SIMBAD references

The excessive dispersion measures (DMs) and high Galactic latitudes of fast radio bursts (FRBs) hint toward a cosmological origin of these mysterious transients.
Method. of using measured DM and redshift z to study cosmology have been proposed, but one needs to assume a certain amount of DM contribution from the host galaxy (DM_HG) in order to apply those methods. We introduce a slope parameter β(z)\equivdln\langleDM_E>/dlnz (where DM_E is the observed DM subtracting the Galactic contribution), which can be directly measured when a sample of FRBs have z measured. We show that \langleDM_HG>can be roughly inferred from β and the mean values, _E>and \barz, of the sample. Through Monte Carlo simulations, we show that the mean value of local host galaxy DM, \langleDM_HG,loc>, along with other cosmological parameters (mass density Ω_m in the ΛCDM model, and the IGM portion of the baryon energy density Ω_bf_IGM), can be independently measured through Markov Chain Monte Carlo fitting to the data.