12–15 Nov 2024
Erlangen Center for Astroparticle Physics
Europe/Berlin timezone

Reconstructing cosmic ray induced air showers for LOFAR

13 Nov 2024, 09:55
15m
Erlangen Center for Astroparticle Physics

Erlangen Center for Astroparticle Physics

Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 2 91058 Erlangen, Germany
Talk

Speaker

Karen Terveer (Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics)

Description

The Low Frequency Array (LOFAR) has been measuring cosmic rays for over a decade. Its dense core of antenna fields makes it an ideal tool for studying the radio emission of extensive air showers, sensitive to energies between 10^16 eV and 10^18.5 eV. Each air shower is recorded using a small particle detector array and hundreds of antennas. The current state-of-the-art method for reconstructing properties such as the shower maximum (Xmax), known as the LOFAR method, relies on various simulations and achieves the highest precision to date. However, it does not fully utilize all available information from the data and is computationally intensive.
We present the current state of development of a new, holistic approach that incorporates all available information, and combines both particle detector and antenna data. This method is based on Bayesian inference and offers a physics-informed, simulation-independent reconstruction, while also providing uncertainties for all reconstructed parameters.

What is your career stage? Graduate researcher (pre PhD)
Which telescopes do you use / are you affiliated with? LOFAR

Primary author

Karen Terveer (Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics)

Co-author

Anna Nelles

Presentation materials