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T: Fachverband Teilchenphysik

T 36: Gamma Astronomy II

T 36.4: Vortrag

Dienstag, 21. März 2023, 17:45–18:00, POT/0151

Status and results of TAIGA — Michael Blank¹, Martin Brückner^3,4, Alaa Kuotb Awad¹, Razmik Mirzoyan², Andrea Porelli³, •Martin Tluczykont¹, and Ralf Wischnewski³ — ¹Institut für Experimentalphysik, Universität Hamburg, Deutschland — ²Max Planck Institut für Physik, München, Deutschland — ³Deutsches Elektronen Synchrotron, Zeuthen, Deutschland — ⁴PSI, Zürich, Schweiz

TAIGA (Tunka Advanced Instrument for Gamma-ray and cosmic ray Astrophysics) is implementing a new, hybrid air Cherenkov observation technique to access the TeV to PeV gamma-ray regime, particularly important to spectrally resolve the cutoff regime of cosmic-ray pevatrons. The TAIGA complex consists of a distributed array of 120 wide angle (0.6 sr) air Cherenkov timing stations (TAIGA-HiSCORE) covering 1.1 square-km, three 4.2m imaging air Cherenkov telescopes (TAIGA-IACTs) with a field of view of 9.6deg, and a surface and underground scintillator-based muon detector array. For a proof-of-principle of the hybrid method, combining IACTs with a non imaging timing array, first the individual components were tested. Both the HiSCORE array and the IACTs were found to operate within expectations using simulations and comparisons to real data. Measurements of a light source onboard the international space station were used to verify the pointing of HiSCORE and IACTs. Recently, the Crab Nebula was detected using data from the first TAIGA-IACT in stand alone mode. In the beginning of March 2022, we froze the collaboration work, but the German team is continuing to work with the available data.