Speaker
Description
It was recently shown that models where UHECR sources are transients that occur proportionally to the starformation rate of each galaxy can roughly reproduce the intermediate-scale overdensities observed in the UHECR arrival directions at $E\gtrsim$40 EeV. Based on that, we explore the prospects of a likelihood-based fit of such models to event-level data from the Pierre Auger Observatory. Specifically, we explore the energy range in which such a model is in accordance with observations, and the sensitivity to constrain the transient emission rate as well as the time spread and blurring induced by turbulent magnetic fields in the local cosmic web. Considering also deflections by the Galactic magnetic field in realistic simulated scenarios, we investigate the ability to correctly identify the underlying magnetic field model and quantify its impact on the parameter reconstruction.
