Seminar Pim Schellart

Pim Schellart
Using radio emission to study cosmic rays

The origin of cosmic rays of the highest energies is still
unknown. In order to solve this puzzle the arrival direction, energy
and mass of these particles all need to be measured. Through
collisions with molecules in the atmosphere of the Earth cosmic rays
induce extensive air showers of particles. These generate radio
emission that can be observed with sensitive instruments. In this talk
I will discuss how we use the LOFAR radio telescope to study such
radio emission to verify and improve air shower emission models and in
turn use them to infer properties of the primary particles. LOFAR
operates in the interesting region of the energy spectrum where a
transition between Galactic and extragalactic sources is expected and
I will discuss our latest results.

Wednesday, April 16, 2014 - 12:05 - 12:25