Frau Therese Paulsen

Astroparticle physics

Biografie

Therese Paulsen is a PhD student at Bergische Universität Wuppertal, where she is studying astroparticle physics. Her project involves multimessenger studies with the Pierre Auger Observatory, where she works on what the current non-observation of ultra-high-energy neutrinos can tell us about the sources of which they originate. Her broader interests include cosmic ray acceleration, transient astrophysical phenomena, and particle interactions at the highest observed energies.

Title and abstract of thesis project:

Multimessenger studies at the Pierre Auger Observatory

The Surface Detector array at the Pierre Auger Observatory is used to search for highly inclined neutrino-induced air showers, which, though not observed yet, have clear characteristic signatures. Due to the current null observation, one can construct upper limits on the neutrino emission in the sources from which they originate. The aim of this thesis is to investigate under what conditions these sources can act as neutrino emitters, thereby limiting the vast parameter space in which they are modeled. The sources that will be investigated in this work are gamma-ray bursts and active galactic nuclei, sources that are widely considered to contain effective acceleration sites due to their emission of gamma-rays.