Local baryons in simulations and reality

Our cosmology du jour, LCDM, suffers a local missing baryon problem: we don’t detect all of the baryons we expected to find associated with the dark matter halos of individual galaxies. Should we? Empirically, yes. The stars and cold (atomic and molecular) gas appear to be all that there is to see in late type … Continue reading Local baryons in simulations and reality →