Hamburg 2016 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 104: Gammaastronomie V

T 104.5: Vortrag

Donnerstag, 3. März 2016, 17:45–18:00, VMP9 SR 27

Multi-TeV Gamma ray and cosmic ray astrophysics with TAIGA — •Martin Tluczykont¹ and TAIGA Kollaboration² — ¹Institut für Experimentalphysik, Luruper Chaussee 149, 22761 Hamburg — ²taiga-experiment.info

The very high energy gamma-ray regime is the key to several questions in high energy astrophysics, the most prominent being the search for the origin of cosmic rays. Observations of gamma rays up to several 100 TeV are particularly important to spectrally resolve the cutoff regime of the long-sought Pevatrons, the accelerators of PeV cosmic rays. TAIGA is an international collaboration that has, in the past 3 years, installed the air Cherenkov timing array HiSCORE on an area of 0.25 square-km, and are currently installing a first 4m diameter imaging air Cherenkov telescope (IACT), to be operated in parallel with the timing array. Our aim is to combine the timing and imaging techniques on a large scale in order to optimize the air Cherenkov detection technique for energies above 10 TeV and up to several 100 TeV. Simulations show a clear potential of the planned hybrid event reconstruction, especially in the energy regime from 10 TeV to 100 TeV. The TAIGA experiment will be complemented by scintillator based particle detectors for a measurement of the muon content of the air shower at higher energies. The status of our experiment and the planned 1 square-km stage of TAIGA will be disussed.