First results from the operation of the prototype Tunka-HiSCORE array

• Published in: Bulletin of the Russian Academy of Sciences. Physics 2015-03, Vol.79 (3), p.348-351
• Main Authors: Berezhnev, S. F., Budnev, N. M., Büker, M., Brückner, M., Wischnewski, R., Gafarov, A. V., Gress, O. A., Gress, T., Dyachok, A. N., Epimakhov, S. N., Zagorodnikov, A. V., Zurbanov, V. L., Kalmykov, N. N., Karpov, N. I., Konstantinov, E. N., Korosteleva, E. E., Kozhin, V. A., Kunnas, M., Kuzmichev, L. A., Chiavassa, A., Lubsandorzhiev, B. K., Lubsandorzhiev, N. B., Mirgazov, R. R., Monkhoev, R. D., Nachtigall, R., Pakhorukov, A. L., Panasyuk, M. I., Pankov, L. V., Porelli, A., Poleshchuk, V. A., Popova, E. G., Prosin, V. V., Ptuskin, V. S., Rueger, M., Rubtsov, G. I., Semeney, Yu. A., Silaev, A. A., Skurikhin, A. V., Sveshnikova, L. G., Tluczykont, M., Hampf, D., Horns, D., Chvalaev, O. A.
• Format: Article
• Language: English
• Subjects: Angle of arrival; Astronomy; Data processing; Gamma rays; Hadrons; Heavy Ions; Materials of the XXXIII National Conference on Cosmic Rays; Nuclear Physics; Particle physics; Physics; Physics and Astronomy
• ISSN: 1062-8738; 1934-9432
• DOI: 10.3103/S1062873815030107

The Tunka-HISCORE wide-angle Cherenkov array, one part of the planned TAIGA integrated gamma observatory intended for investigations in the field of high-energy (>30 TeV) gamma-ray astronomy and cosmic-ray physics, is deployed in the Tunka Valley (Buryat Republic). The first results from operating a prototype array composed of nine stations spread over an area of ∼0.1 square kilometers during the winter of 2013–2014 are presented. Data processing techniques are described, along with data on the accuracy of reconstructing the position of a shower’s axis, energy, and angle of arrival. The differential spectrum of all cosmic-ray particles in a shower in the energy range of 2 × 10 14 to 2 × 10 16 eV is presented and compared to the available data.