Speaker
Description
The LOw Frequency ARray (LOFAR) is a radio telescope with 38 stations of antenna fields across Europe, and it can detect the radio emission from cosmic-ray induced air showers via radio antennas in the frequency range from $30$ to $80 \ \text{MHz}$.
A current reconstruction approach is determining the shower maximum $X_\text{max}$, which can be used to deduce the mass of the primary particle. The mass composition of cosmic rays contains vital information about their origin, and with accurate measurements long-standing issues about the transition from Galactic to extragalactic origin or the nature of the cutoff observed at highest energies could be solved.
The reconstruction of the signal poses a challenge due to background noise which obscures the data. A new approach to this is Information Field Theory, which uses Bayesian inference to calculate the most likely signal for given data.
