Heidelberg 2022 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 71: Neutrino Astronomy 3
T 71.3: Vortrag
Mittwoch, 23. März 2022, 16:45–17:00, T-H30
Search for a high energy neutrino flux from Gamma Ray Bursts using the Pierre Auger Observatory* — •Tobias Heibges for the Pierre Auger collaboration — Bergische Universität Wuppertal, Gaußstraße 20 42119 Wuppertal, Germany
Gamma Ray Bursts (GRBs) are among the most violent explosions known in the Universe. A characteristic feature is a very high flux of gamma rays produced in these explosions which can be observed and located by satellites, such as the Swift and Fermi satellites.
A high energy gamma ray flux can be interpreted as an indication for the acceleration of charged particles up to the highest energies. Therefore, Gamma Ray Bursts are among the prime candidates to be sources of ultra high energy cosmic rays (UHECRs). High energy neutrinos are commonly regarded as a smoking gun indicator of UHECR acceleration and as they are not deflected by magnetic fields they can be easily traced back to their source and thereby contribute to unraveling the mystery about the origin of UHECRs.
The Pierre Auger Observatory is sensitive to high energy neutrinos with energies beyond ∼ 1017 eV. In this talk the non-observation of any high energy neutrino events is used to set an upper limit on the high energy neutrino flux seen on earth, produced by GRBs.
* Supported by BMBF Verbundforschung, grant 05A20PX1