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T: Fachverband Teilchenphysik

T 54: Cosmic rays 5

T 54.7: Vortrag

Mittwoch, 6. März 2024, 17:30–17:45, Geb. 20.30: 2.059

Detecting cosmic rays with the LOFAR radio telescope — •Karen Terveer — Erlangen Centre for Astroparticle Physics (ECAP), Friedrich-Alexander-Universität Erlangen-Nürnberg

The LOw Frequency ARray (LOFAR) is the worlds largest radio telescope. With antenna fields distributed across Europe and its core in the Netherlands, it can be used for various astronomical observations. One of the key science questions is the measurement of radio signals from cosmic ray induced air showers.

The existence of radio emission from air showers has been known since the seventies, but only the past decade brought the powerful digital signal processing techniques needed to study it. Now radio is a powerful tool for the investigation of cosmic rays - with various advantages over more traditional methods. LOFAR is one of the pathfinder experiments paving the way for next generation radio telescopes such as the Square Kilometre Array (SKA).

An important challenge to overcome is the high amounts of data, noise and the computationally expensive reconstruction of an air shower event. A new reconstruction method utilising the Bayesian inference based Information Field Theory (IFT) could be a possible solution to this.