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Astapov, I.; Bezyazeekov, P.; Bonvech, E.; Borodin, A.; Budnev, N.; Bulan, A.; Chernov, D.; Chiavassa, A.; Dyachok, A.; Gafarov, A.; Garmash, A.; Grebenyuk, V.; Gress, E.; Gress, O.; Gress, T.; Grinyuk, A.; Grishin, O.; Ivanova, A. D.; Ivanova, A. L.; Iliushin, M.; Kalmykov, N.; Kindin, V.; Kiryuhin, S.; Kokoulin, R.; Kompaniets, K.; Korosteleva, E.; Kozhin, V.; Kravchenko, E.; Kryukov, A.; Kuzmichev, L.; Lagutin, A.; Lavrova, M.; Lemeshev, Y.; Lubsandorzhiev, B.; Lubsandorzhiev, N.; Malakhov, S.; Mirgazov, R.; Monkhoev, R.; Okuneva, E.; Osipova, E.; Pakhorukov, A.; Pankov, L.; Pan, A.; Panov, A.; Petrukhin, A.; Podgrudkov, D.; Popova, E.; Postnikov, E.; Prosin, V.; Ptuskin, V.; Pushnin, A.; Raikin, R.; Razumov, A.; Rubtsov, G.; Ryabov, E.; Samoliga, V.; Satyshev, I.; Silaev, A.; Silaev (junior), A.; Sidorenkov, A.; Skurikhin, A.; Sokolov, A.; Sveshnikova, L.; Tabolenko, V.; Tarashchansky, B.; Tkachev, L.; Tanaev, A.; Ternovoy, M.; Ushakov, N.; Vaidyanathan, A.; Volchugov, P.; Volkov, N.; Voronin, D.; Zagorodnikov, A.; Zhurov, D.; Yashin, I.
Physics of atomic nuclei, 08/2023, Letnik: 86, Številka: 4Journal Article
The physical motivations and performance of the TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) project are presented. The TAIGA observatory addresses ground-based gamma-ray astronomy at energies from a few TeV to several PeV, as well as cosmic ray physics from 100 TeV to several EeV and astroparticle physics. The pilot TAIGA-1 complex locates in the Tunka valley, km West from the southern tip of the lake Baikal. It includes integrated air Cherenkov TAIGA-HiSCORE array with 120 wide-angle optical stations distributed over on area 1.1 square kilometer about and three 4-m class Imaging Atmospheric Cherenkov Telescopes of the TAIGA-IACT array. The latter array has a shape of triangle with side lengths of about 300, 400 and 500 m. The integral sensitivity of the 1-km TAIGA-1 detector is about TeV cm s for detection of TeV gamma-rays in 300 hours of source observations. The combination of the wide-angle Cherenkov array and IACTs could offer a cost effective-way to build a large (up to 10 km ) array for very high energy gamma-ray astronomy. The reconstruction of a given EAS energy, incoming direction, and the core position, based on the TAIGA-HiSCORE data, allows one to increase the distance between the relatively expensive IACTs up to 600–800 m. These, together with the surface and underground electron/Muon detectors, will be used for selection of gamma-ray-induced EAS. Present status of the project, together with the current array description, the first experimental results and plans for the future are reported.
