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1. TAIGA - An advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy

Author

N. M. Budnev, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, A. D. Ivanova, A. L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Osipova, A. Pakhorukov, L. Pankov, A. Pan, A. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, V. Samoliga, A. Satyshev, A. Silaev, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, L. Tkachev, A. Tanaev, M. Ternovoy, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, D. Zhurov, I. Yashin

Subjects
Physics, QC1-999
Abstract

The physical motivations, present status, main results in study of cosmic rays and in the field of gamma-ray astronomy as well future plans of the TAIGA-1 (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) project are presented. The TAIGA observatory addresses ground-based gamma-ray astronomy and astroparticle physics at energies from a few TeV to several PeV, as well as cosmic ray physics from 100 TeV to several EeV. The pilot TAIGA-1 complex is located in the Tunka valley, 50 km west from the southern tip of the lake Baikal.

Published
2023
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2. Primary cosmic ray energy spectrum and mean mass composition using data from the TAIGA astrophysical complex

Author

V. Prosin, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, A. Bulan, A. Chiavassa, D. Chernov, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, E. Gress, T. Gress, A. Grinyuk, O. Grishin, A. D. Ivanova, A. L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Okuneva, E. Osipova, A. Pakhorukov, A. Pan, L. Panasenko, L. Pankov, A. D. Panov, A. Petrukhin, I. Poddubny, D. Podgrudkov, V. Poleschuk, V. Ponomareva, E. Popova, E. Postnikov, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M. Y. Ternovoy, L. Tkachev, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, A. Zhaglova, D. Zhurov, I. Yashin

Subjects
Physics, QC1-999
Abstract

The corrected dependence of the mean depth of the EAS maximum $X_{max}$ on the energy was obtained from the data of the Tunka-133 array for 7 years and the TAIGA-HiSCORE array for 2 years. The parameter $\langle\ln A\rangle$, characterizing the mean mass compositon was derived from these results. The differential energy spectrum of primary cosmic rays in the energy range of $2\cdot 10^{14}$ – $2\cdot 10^{16}$ eV was reconstructed using the new parameter $Q_{100}$ the Cherenkov light flux at the core distance 100 m. Change of the parameter for the energy reconstuction for the TAIGA-HiSCORE from $Q_{200}$ to $Q_{100}$ provides a decreasing energy threshold for the spectrum to about 200 TeV.

Published
2023
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3. The Tunka-Grande scintillation array: Current results

Author

A. L. Ivanova, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, N. Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, A. D. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Osipova, A. Pakhorukov, L. Pankov, A. Pan, A. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Poleschuk, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, A. Satyshev, A. Silaev, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, L. Tkachev, A. Tanaev, M. Ternovoy, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, D. Zhurov, I. Yashin

Subjects
Physics, QC1-999
Abstract

The Tunka-Grande experiment is a scintillation array with about 0.5 km$^2$ sensitive area at Tunka Valley, Siberia, for measuring charged particles and muons in extensive air showers (EASs). Tunka-Grande is optimized for cosmic ray studies in the energy range 10 PeV to about 1 EeV, where exploring the composition is of fundamental importance for understanding the transition from galactic to extragalactic origin of cosmic rays. This paper attempts to provide a synopsis of the current results of the experiment. In particular, the reconstruction of the all-particle energy spectrum in the range of 10 PeV to 1 EeV based on experimental data from four observation seasons is presented.

Published
2023
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4. Energy Spectrum and Mass Composition of Cosmic Rays from the Data of the Astrophysical Complex TAIGA

Author

V. Prosin, I. Astapov, P. Bezyazeekov, A. Borodin, M. Brückner, N. Budnev, A. Bulan, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, L. Pankov, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Ptuskin, A. Petrukhin, A. Pushnin, R. Raikin, E. Rjabov, G. Rubtsov, Y. Sagan, V. Samoliga, A. Sidorenkov, A. Silaev, A. Skurikhin, M. Slunecka, A. Sokolov, L. Sveshnikova, Y. Suvorkin, V. Tabolenko, A. Tanaev, B. Tarashansky, M. Ternovoy, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, D. Voronin, R. Wischnewski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Subjects
Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics
Published
2021

5. Search for nanosecond-fast optical transients with TAIGA-HiSCORE array

Author

Alexander Panov, I. Astapov, A. Awad, G. M. Beskin, Pavel Bezyazeekov, M. Blank, E. A. Bonvech, A. Borodin, M. Brückner, N. M. Budnev, A. Bulan, D. V. Chernov, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. A. Kozhin, E. Kravchenko, A. A. Krivopalova, L. Kuzmichev, Alexander Kryukov, A. Lagutin, M. Lavrova, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, L. A. Panasenko, A. Pan, L. Pankov, A. Petrukhin, D. A. Podgrudkov, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, E. Rjabov, G. Rubtsov, Y. Sagan, V. Samoliga, Andrei Sidorenkov, A. Silaev, A. A. Silaev (junior), A. V. Skurikhin, M. Slunecka, A. V. Sokolov, Y. Suvorkin, L. G. Sveshikova, V. A. Tabolenko, A. Tanaev, B. Tarashansky, M. Ternovoy, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, R. Wischnewski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Published
2021

6. TAIGA - an advanced hybrid detector complex for astroparticle physics, cosmic ray physics and gamma-ray astronomy

Author

V. P. Sulakov, E. A. Kravchenko, Roman Raikin, A. A. Grinyuk, A. Chiavassa, E. E. Korosteleva, BayarJon Paul Lubsandorzhiev, E. Popova, R. R. Mirgazov, L. G. Sveshnikova, S. Malakhov, R. P. Kokoulin, R. Togoo, A. Petrukhin, Yu. Lemeshev, A.V. Igoshin, S. Kiryuhin, V. V. Prosin, A. Porelli, A. Borodin, M. Blank, A. Ivanova, M. Tluczykont, A. N. Dyachok, V.A. Tabolenko, L. G. Tkachev, V. Samoliga, V. A. Poleschuk, R. Wischnewski, A. Bulan, E. A. Osipova, N. Ushakov, Pavel Bezyazeekov, Evgeny Postnikov, D. Zhurov, L. V. Pankov, A. Garmash, M. Ternovoy, D. Voronin, O. A. Gress, T. I. Gress, V. V. Kindin, I. I. Astapov, V. A. Kozhin, K. G. Kompaniets, Andrey Sokolov, E. V. Ryabov, R. Mirzoyan, Grigory Rubtsov, N. N. Kalmykov, O. Grishin, M. Popesku, D. Lukyantsev, V. Slunecka, A. V. Skurikhin, Y. Sagan, Dieter Horns, V. S. Ptuskin, P. Volchugov, A. L. Pakhorukov, A. Tanaev, A. Pushnin, N. B. Lubsandorzhiev, Aleksandr Gafarov, A. A. Silaev, A. V. Zagorodnikov, N. M. Budnev, Y. Suvorkin, E. Gress, A. Zhaglova, L. A. Kuzmichev, V. M. Grebenyuk, B. A. Tarashchansky, A. Vaidyanathan, I. Poddubnyi, Anatoly Lagutin, V. Ponomareva, M. Brückner, R. D. Monkhoev, B. M. Sabirov, I. I. Yashin, Alexander Kryukov, and A. Sidorenkov

Subjects
Astroparticle physics, Physics, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Electron, Gamma-ray astronomy, Cherenkov radiation
Abstract

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 complex locates in the Tunka valley, ~50 km West from the southern tip of the lake Baikal. It includes integrating air Cherenkov TAIGA-HiSCORE array with 120 wide-angle optical stations distributed over on area 1 square kilometer about and three the 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 300m, 400m and 500m. The expected integral sensitivity of the 1 km2 TAIGA detector will be about 2,5 × 10-13 TeV cm-2 sec-1 for detection of E ≥ 100 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 really large (up to 10 km2) 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 and the first experimental results and plans for the future will be reported.

Published
2021

7. Stereoscopic and monoscopic operation of the five IACTs in the TAIGA experiment

Author

Pavel Volchugov, A. Grinyuk, E. Postnikov, I. Astapov, A. Awad, Pavel Bezyazeekov, M. Blank, A. Borodin, A. Bulan, M. Brueckner, N. M. Budnev, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, O. Grishin, Dieter Horns, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. A. Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, A. V. Skurikhin, M. Slunecka, A. Sokolov, C. Spiering, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, L. Tkachev, R. Togoo, M. Tluczykont, N. Ushakov, A. Vaidyanathan, N. Volkov, D. Voronin, R. Wischnewski, A. Zagorodnikov, D. Zhurov, and I. Yashin

Published
2021

8. Tunka-Grande array for high-energy gamma-ray astronomy and cosmic-ray physics: preliminary results

Author

A. Ivanova, M. Brueckner, V. Ptuskino, R. Monkhoev, I. Astapov, Pavel Bezyazeekov, M. Blank, E. A. Bonvech, A. Borodin, M. Brückner, N. M. Budnev, A. Bulan, D. V. Chernov, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Igoshin, A. D. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. A. Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. R. Mirgazov, R. Mirzoyan, E. Osipova, A. Pakhorukov, L. A. Panasenko, L. Pankov, A. Panov, A. Petrukhin, I. Poddubnyi, D. A. Podgrudkov, V. Poleschuk, V. Ponomareva, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, B. Sabirov, A. Silaev, A. Silaev (junior), Andrei Sidorenkov, A. V. Skurikhin, V. Slunecka, A. Sokolov, V. Sulakov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, B. Tarashchansky, L. Tkachev, M. Tluczykont, A. Tanaev, M. Ternovoy, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, R. Wischnewski, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Published
2021

9. TAIGA—A hybrid array for high energy gamma-ray astronomy and cosmic-ray physics

Author

N. Budnev, I. Astapov, P. Bezyazeekov, E. Bonvech, A. Borodin, A. Bulan, A. Chiavassa, D. Chernov, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, E. Gress, T. Gress, A. Grinyuk, O. Grishin, A.D. Ivanova, A.L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Komponiets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Monkhoev, E. Okuneva, E. Osipova, A. Pakhorukov, A. Pan, L. Panasenko, L. Pankov, A.D. Panov, A. Petrukhin, I. Poddubny, D. Podgrudkov, V. Poleschuk, V. Ponomareva, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Sidorenkov, A. Skurikhin, A. Sokolov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M.Y. Ternovoy, L. Tkachev, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Subjects
ImagingTAIGA-IACTarray, Nuclear and High Energy Physics, Cosmicray, TimingTAIGA-HiSCOREarray, Gammaastronomy, Instrumentation
Published
2022

10. Optimisation studies of the TAIGA-Muon scintillation detector array

Author

I. Astapov, P. Bezyazeekov, M. Blank, E. Bonvech, A. Borodin, M. Brueckner, N. Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Igoshin, A.D. Ivanova, A.L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, L. Pankov, L. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Poleschuk, V. Ponomareva, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, I. Satyshev, A. Silaev, A. Silaev(junior), A. Sidorenkov, S. Sinegovsky, A. Skurikhin, A. Sokolov, V. Sulakov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M. Ternovoy, L. Tkachev, M. Tluczykont, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, R. Wischnewski, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Subjects
Instrumentation, Mathematical Physics
Abstract

The TAIGA astroparticle observatory is progressing with the deployment of new detector stations. The Tunka-Grande — scintillation counter array of the observatory expands with the new TAIGA-Muon stations. Several simulation studies were conducted for optimisation of the new station positioning and performance. Extensive air showers induced by gamma quanta or a proton in the range from 100 TeV to 1 PeV at a zenith angle of 0° were used for these studies. Based on the developed simulation, the capabilities of identification of high energy extensive air showers were studied. The soil thickness, the detector and station positions, the lowest measurable energy range of the cosmic rays, and different methods of air shower identification were investigated.

Published
2022

11. Identification of electromagnetic and hadronic EASs using neural network for TAIGA scintillation detector array

Author

I. Astapov, P. Bezyazeekov, M. Blank, E. Bonvech, A. Borodin, M. Brueckner, N. Budnev, A. Bulan, D. Chernov, A. Chiavassa, A. Dyachok, A. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Igoshin, M. Ilyushin, A.D. Ivanova, A.L. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, A. Kuotb, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, L. Pankov, L. Panov, A. Petrukhin, I. Poddubnyi, D. Podgrudkov, V. Poleschuk, V. Ponomareva, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. Ryabov, Y. Sagan, V. Samoliga, I. Satyshev, A. Silaev, A. Silaev(junior), A. Sidorenkov, S. Sinegovsky, A. Skurikhin, A. Sokolov, V. Sulakov, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashchansky, M. Ternovoy, L. Tkachev, M. Tluczykont, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, V. Vorobyov, D. Voronin, R. Wischnewski, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin

Subjects
Instrumentation, Mathematical Physics
Abstract

The TAIGA experiment in Tunka valley is expanding the present scintillation detector array with new TAIGA-Muon detector stations. A simulation model was developed for optimization of the layout of the new stations and study of the identification performance of the array. The extensive air showers (EASs) were simulated with the CORSIKA simulation tool, and the detector response was simulated with the GEANT4 package. EASs induced by gamma quanta or protons in the energy range from 1 PeV to 10 PeV and the zenith angle range from 0° to 45°, are used for these studies. For the identification of high energy extensive air showers, a method based on a neural network was suggested. With this method, the proton identification efficiency is more than 90%, while the gamma identification efficiency not less than 50%.

Published
2022

12. Optimization of electromagnetic and hadronic extensive air shower identification using the muon detectors of the TAIGA experiment

Author

K. G. Kompaniets, A. Chiavassa, V.A. Tabolenko, Valery Zurbanov, R. R. Mirgazov, E. A. Kravchenko, E. E. Korosteleva, R. P. Kokoulin, M. Kunnas, O. Grishin, Anatoly Lagutin, T. I. Gress, Oleg Fedorov, D. Voronin, Aleksandr Gafarov, L. G. Tkachev, A. V. Skurikhin, I. I. Astapov, R. Nachtigall, V. V. Lenok, A. A. Silaev, A. V. Zagorodnikov, A. Borodin, Evgeny Postnikov, B.A. Tarashansky, E. A. Osipova, V. Slunecka, A. Krykov, V. S. Ptuskin, A. Silaev junior, E.G. Popova, Dieter Horns, A. Porelli, R. D. Monkhoev, B. M. Sabirov, Pavel Bezyazeekov, V. Boreyko, I. I. Yashin, A. L. Pakhorukov, Mihai Popescu, R. Wischnewski, V. A. Poleschuk, D. Zhurov, M. Brueckner, A. Sidorenkov, L. A. Kuzmichev, V. M. Grebenyuk, A. Garmash, Yu. A. Semeney, Grigory Rubtsov, N. N. Kalmykov, A. Ivanova, Bayarto Lubsandorzhiev, N. V. Gorbunov, Evgenii V Rjabov, A. V. Tkachenko, Yu. Lemeshev, P. Kirilenko, Roman Raikin, N. M. Budnev, V. Samoliga, A. Vaidyanathan, S. Kiryuhin, V. V. Prosin, A. A. Grinyuk, O. A. Gress, C. Spiering, V. A. Kozhin, V. V. Kindin, A. A. Petrukhin, Y. Sagan, M. Tluczykont, Yulia Kazarina, L. G. Sveshnikova, Andrey Sokolov, A. Pushnin, N. B. Lubsandorzhiev, N. Ushakov, L. V. Pankov, A. N. Dyachok, Mikhail Panasyuk, and R. Mirzoyan

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), TAIGA, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Scintillator, Wavelength shifter, Nuclear physics, Air shower, Scintillation detectors, High Energy Physics::Experiment, Instrumentation
Abstract

The TAIGA experiment in the Tunka valley near Lake Baikal is planning an extension with new TAIGA-Muon scintillation detector stations. The main purpose of TAIGA is gamma-ray astronomy in the TeV to PeV energy range and cosmic ray physics. The purpose of the Taiga-Muon detectors is to measure the muon component of air showers for improving cosmic ray composition measurements as well as gamma–hadron separation above 100 TeV. Monte Carlo simulations of the experiment are done with the software packages CORSIKA and GEANT4. Extensive air showers of primary particles in the energy range 100–3000 TeV are created with CORSIKA. The trigger efficiency is calculated and used for optimization. The suppression factor of hadronic showers versus electromagnetic showers is studied, leading to an optimum depth of soil absorber (2 m), at the lowest energy range. Data on the identification efficiency for primary gamma-quanta and proton events are presented as well as the suppression factor.

Published
2020

13. Cherenkov EAS arrays in the Tunka astrophysical center: From Tunka-133 to the TAIGA gamma and cosmic ray hybrid detector

Author

R. R. Mirgazov, A. Chiavassa, V. Prosin, Oleg Fedorov, A. Borodin, L. G. Sveshnikova, A. V. Skurikhin, Evgeny Postnikov, E.G. Popova, O. G. Grishin, Dieter Horns, Martin Tluczykont, M. Slunecka, D. Zhurov, Bayarto Lubsandorzhiev, V.A. Tabolenko, A. V. Tkachenko, N. B. Lubsandorzhiev, A. Grinyuk, E. A. Kravchenko, V. Samoliga, E. A. Osipova, K. G. Kompaniets, Razmik Mirzoyan, E. E. Korosteleva, V. Kiryuhin, Pavel Bezyazeekov, Alexander Kryukov, A. Sidorenkov, A. Garmash, Valery Zurbanov, Aleksandr Gafarov, R. P. Kokoulin, Grigory Rubtsov, N. N. Kalmykov, A. A. Silaev, A. Pan, A. A. Petrukhin, Aleksey Zagorodnikov, M. Brückner, R. D. Monkhoev, T. I. Gress, A. Pushnin, Anatoly Lagutin, D. Voronin, E. V. Ryabov, Victor Grebenyuk, L. Tkachev, A. Pakharukov, I. I. Astapov, Roman Raikin, Ralf Wischnewski, L. A. Kuzmichev, V. V. Lenok, A. Porelli, Yu. A. Semeney, P. Kirilenko, A. N. Dyachok, Ch. Spiering, N. Ushakov, L. V. Pankov, Y. Sagan, I. V. Yashin, M. Popesku, V. S. Ptuskin, O. A. Gress, V. A. Kozhin, V. V. Kindin, V. A. Poleschuk, Mikhail Panasyuk, Y. Kazarina, B.A. Tarashansky, Andrey Sokolov, and N. M. Budnev

Subjects
Physics, Nuclear and High Energy Physics, Gamma-ray astronomy, Calorimeter (particle physics), 010308 nuclear & particles physics, Aperture, Cosmic rays, EAS Cherenkov light array, Energy spectrum, IACT, Detector, Gamma ray, Astronomy, Cosmic ray, 01 natural sciences, 7. Clean energy, 13. Climate action, 0103 physical sciences, 010303 astronomy & astrophysics, Instrumentation, Cherenkov radiation
Abstract

One of the most informative methods of cosmic ray studies is the detection of Cherenkov light from extensive air showers (EAS). The primary energy reconstruction is possible by using the Earth’s atmosphere as a huge calorimeter . The EAS Cherenkov light array Tunka-133, with ∼ 3 km 2 geometrical area, is taking data since 2009. Tunka-133 is located in the Tunka Astrophysical Center at ∼ 50 km west of Lake Baikal. This array allows us to perform a detailed study of the energy spectrum and the mass composition in the energy range from 6 ⋅ 1 0 15 eV to 1 0 18 eV . Most of the ongoing efforts are focused on the construction of the first stage of the detector TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy). The latter is designed for the study of gamma rays and charged cosmic rays in the energy range of 1 0 13 eV – 1 0 18 eV . The TAIGA prototype will consist of ∼ 100 wide angle timing Cherenkov stations (TAIGA-HiSCORE) and three IACTs deployed over an area of ∼ 1 km 2 . The installation of the array is planned to be finished in 2019 while the data-taking can start already during the commissioning phase. The joint reconstruction of energy, direction, and core position of the imaging and non-imaging detectors will allow us to increase the distance between the IACTs up to 800 m, therefore providing a low-cost, highly sensitive detector. The relatively low cost together with the high sensitivity for energies ≥ 30–50 TeV make this pioneering technique very attractive for exploring galactic PeVatrons and cosmic rays. In addition to the Cherenkov light detectors we intend to deploy surface and underground muon detectors over an area of 1 km 2 with a total area of about 1000 m 2 . The results of the first season of coincident operation of the first ∼ 4 m diameter IACT with an aperture of ∼ 10°with 30 stations of TAIGA-HiSCORE will be presented.

Published
2020

14. Scintillation detectors for the TAIGA experiment

Author

Evgeny Postnikov, Yu. A. Semeney, P. Kirilenko, V.A. Tabolenko, V. V. Lenok, Bayarto Lubsandorzhiev, A. Porelli, L. A. Kuzmichev, Aleksandr Gafarov, M. Kunnas, V. M. Grebenyuk, D. Zhurov, Andrey Sokolov, R. R. Mirgazov, E. A. Kravchenko, Valery Zurbanov, A. A. Petrukhin, Aleksey Zagorodnikov, A. A. Grinyuk, A. Chiavassa, V. Prosin, Mikhail Panasyuk, E. E. Korosteleva, B.A. Tarashansky, A. A. Silaev, V. Samoliga, A. Garmash, R. P. Kokoulin, M. Brueckner, Yulia Kazarina, R. D. Monkhoev, T. I. Gress, E. A. Osipova, L. G. Sveshnikova, V. A. Poleschuk, R. Mirzoyan, A. V. Skurikhin, Oleg Fedorov, Pavel Bezyazeekov, A. Ivanova, R. Nachtigall, A. Pakhorukov, L. G. Tkachev, N. M. Budnev, Yu. Lemeshev, E.G. Popova, N. V. Gorbunov, Dieter Horns, M. Tluczykont, K. G. Kompaniets, I. I. Astapov, A. Borodin, S. Kiryuhin, Grigory Rubtsov, N. N. Kalmykov, O. Grishin, L. V. Pankov, A. N. Dyachok, M. V. Lavrova, A. Vaidyanathan, C. Spiering, O. A. Gress, V. A. Kozhin, V. V. Kindin, Evgenii V Rjabov, R. Wischnewski, M. Popesku, V. Slunecka, V. S. Ptuskin, N. B. Lubsandorzhiev, B. M. Sabirov, I. I. Yashin, A. Sidorenkov, A. Pushnin, and Y. Sagan

Subjects
Physics, Nuclear and High Energy Physics, Scintillation, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Detector, Scintillator, Wavelength shifter, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, 0103 physical sciences, Physics::Accelerator Physics, High Energy Physics::Experiment, Instrumentation, Remote sensing
Abstract

It is planned that new TAIGA-Muon detectors will complement the existing Tunka-GRANDE facility of scintillation detectors of the TAIGA gamma-observatory in the Tunka valley, Russia. The new design of scintillation detector with wavelength shifting bars and PMTs is developed. The first prototype of the counter was installed and tested using infrastructure of the Tunka-GRANDE installation in 2017. The mass production of counters has begun in 2018 at the Novosibirsk State University.

Published
2019

15. Tunka-Grande scintillation array: resent results

Author

A L Ivanova, R Monkhoev, I Astapov, P Bezyazeekov, M Blank, E Bonvech, A Borodin, M Brückner, N Budnev, A Bulan, D Chernov, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, E Gress, O Gress, T Gress, A Grinyuk, O Grishin, D Horns, A D Ivanova, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, A Kryukov, L Kuzmichev, A Lagutin, M Lavrova, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, A Lukanov, D Lukyantsev, S Malakhov, R Mirgazov, R Mirzoyan, E Osipova, A Pakhorukov, L Pankov, A Pan, A Panov, A Petrukhin, I Poddubnyi, D Podgrudkov, V Poleschuk, V Ponomareva, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, A Razumov, G Rubtsov, E Ryabov, Y Sagan, V Samoliga, A Satyshev, A Silaev, A Sidorenkov, S Sinegovsky, A Skurikhin, A Sokolov, V Sulakov, L Sveshnikova, V Tabolenko, B Tarashchansky, L Tkachev, M Tluczykont, A Tanaev, M Ternovoy, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, N Volkov, D Voronin, R Wischnewski, A Zagorodnikov, A Zhaglova, D Zhurov, and I Yashin

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Education
Abstract

Objectives of the TAIGA Astrophysical complex include the study of the flux of charged cosmic rays and diffuse gamma rays with energies above 100 TeV. This complex is located in the Tunka Valley about 50 km from Lake Baikal at the site of the Tunka-133 Cherenkov facility. TAIGA includes the TAIGA-HiSCORE wide-angle Cherenkov array, the network of Imaging Atmospheric Cherenkov Telescopes (TAIGA-IACT), the Tunka-Grande and TAIGA-Muon scintillation arrays. In this work, we present the results of an analysis of the joint events of the Tunka-Grande scintillation array and TAIGA-HiSCORE and Tunka-133 Cherenkov facilities. The results verify sufficient accuracy of the scintillation experiment for the hybrid study of mass composition of cosmic rays and gamma-hadron separation.

Published
2021

16. Geant4 simulation of the Tunka-Grande experiment

Author

R Monkhoev, M Ternovoy, I Astapov, P Bezyazeekov, A Borodin, M Brueckner, N Budnev, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, O Gress, T Gress, A Grinyuk, O Grishin, D Horns, A Igoshin, A Ivanova, Al Ivanova, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, A Kryukov, L Kuzmichev, A Lagutin, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, D Lukyantsev, S Malakhov, R Mirgazov, R Mirzoyan, E Osipova, A Pakhorukov, L Pankov, A Petrukhin, I Poddubnyi, V Poleschuk, V Ponomareva, M Popesku, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, G Rubtsov, E Ryabov, Y Sagan, V Samoliga, B Sabirov, A Silaev, A Sidorenkov, S Sinegovsky, A Skurikhin, V Slunecka, A Sokolov, Y Suvorkin, L Sveshnikova, V Tabolenko, B Tarashchansky, L Tkachev, M Tluczykont, A Tanaev, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, D Voronin, R Wischnewski, A Zagorodnikov, A Zhaglova, D Zhurov, and I Yashin

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Education
Abstract

The Tunka-Grande array is part of a single experimental complex, which also includes the Tunka-133 and TAIGA-HiScORE (High Sensitivity COsmic Rays and gamma Explorer) wide-angle Cherenkov arrays, TAIGA-IACT array (Imaging Atmospheric Cherenkov Telescope) and TAGA-MUON scintillation array. This complex is located in the Tunka Valley (Buryatia Republic, Russia), 50 km from Lake Baikal. It is designed to study the energy spectrum and the mass composition of charged cosmic rays in the energy range 100 TeV - 1000 PeV, to search for diffuse gamma rays above 100 TeV and to study local sources of gamma rays with energies above 30 TeV. This report outlines 3 key points. The first is the description of the Tunka-Grande scintillation array. The second one presents the computer simulation strategy of the Tunka Grande array based on the Geant4 software. The third one is devoted to the prospects for future research in the field of cosmic ray physics and gamma-ray astronomy using simulation results.

Published
2021

17. The hybrid installation TAIGA: design, status and preliminary results

Author

Nima Lubsandorzhiev, I. Astapov, Pavel Bezyazeekov, A. Borodin, M. Brueckner, N. M. Budnev, V. Chernykh, A. Chiavassa, A. N. Dyachok, O. Fedorov, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Igoshin, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, Y. Lemeshev, V. Lenok, B. Lubsandorzhiev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, A. V. Skurikhin, V. Slunecka, A. Sokolov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, B. Tarashchansky, L. Tkachev, M. Tluczykont, A. Tonaev, N. Ushakov, P. Volchugov, D. Voronin, R. Wischnewski, A. Zagorodnikov, D. Zhurov, and I. Yashin

Published
2019

18. Simulation of the Tunka-Grande, TAIGA-Muon and TAIGA-HiSCORE arrays for a search of astrophysical gamma quanta with energy above 100 TeV

Author

M Ternovoy, I Kotovschikov, N Budnev, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, O Gress, T Gress, O Grishin, A Grinyuk, D Horns, A Ivanova, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, A Krykov, L Kuzmichev, A Lagutin, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, E Osipova, A Pakhorukov, A Pan, M Panasyuk, L Pankov, A Petrukhin, V Poleschuk, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, G Rubtsov, E Rybov, Y Sagan, V Samoliga, A Silaev, A Silaev Jr, A Sidorenkov, A Skurikhin, C Slunecka, A Sokolov, Y Suvorkin, L Sveshnikova, V Tabolenko, A Tanaev, B Tarashansky, L Tkachev, M Tluczykont, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, D Voronin, R Wischnevski, A Zagorodnikov, D Zhurov, and I Yashin

Subjects
History, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Computer Science Applications, Education
Abstract

In the paper we present our simulation strategy of the Tunka-Grande, TAIGA-Muon, and TAIGA-HiSCORE arrays in the light of the problem of separation astrophysical high-energy gamma rays from the cosmic ray background. The paper contains a description of our simulation method, based on Geant4 and CORSIKA codes. We also present the prospect of future research with TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy) with using the simulation results.

Published
2021

19. Tunka-Grande and TAIGA-Muon scintillation arrays: status and prospects

Author

A. Porelli, Evgeny Postnikov, V. Chernykh, A. Petrukhin, E. A. Kravchenko, A. V. Skurikhin, E. E. Korosteleva, A. Pushnin, Y. Sagan, V. A. Poleschuk, Y. Suvorkin, Konstantin Ustinov, R. D. Monkhoev, R. P. Kokoulin, K. G. Kompaniets, Yu. Lemeshev, B. M. Sabirov, I. I. Astapov, V. V. Kindin, R. Mirzoyan, M. Popesku, Roman Raikin, Dieter Horns, M. Tluczykont, L. G. Tkachev, V. Samoliga, O. Grishin, A. A. Grinyuk, S. Kiryuhin, V. V. Prosin, V.A. Tabolenko, V. Slunecka, Grigory Rubtsov, N. N. Kalmykov, A. Chiavassa, BayarJon Paul Lubsandorzhiev, I. I. Yashin, V. S. Ptuskin, N. Ushakov, E. A. Osipova, Andrey Sokolov, N. B. Lubsandorzhiev, D. Zhurov, M. Ternovoy, M. Brueckner, Pavel Bezyazeekov, R. Wischnewski, D. Voronin, Yulia Kazarina, L. V. Pankov, A.V. Igoshin, O. A. Gress, A. Garmash, Alexander Kryukov, A. Pan, A. Sidorenkov, V. A. Kozhin, L. G. Sveshnikova, A. Ivanova, Aleksandr Gafarov, N. M. Budnev, B. A. Tarashchansky, A. Vaidyanathan, A. A. Silaev, A. V. Zagorodnikov, A. N. Dyachok, Anatoly Lagutin, P. Volchugov, L. A. Kuzmichev, A. L. Pakhorukov, V. M. Grebenyuk, Mikhail Panasyuk, A. Tanaev, E. Popova, R. R. Mirgazov, Oleg Fedorov, A. Borodin, T. I. Gress, and E. V. Ryabov

Subjects
Physics, History, Scintillation, Muon, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Computer Science Applications, Education
Abstract

The Tunka-Grande and TAIGA-Muon arrays are the part of a single experimental complex, which also includes the Tunka-133 and TAIGA-HiSCORE (High Sensitivity COsmic Rays and gamma Explorer) wide-angle Cherenkov arrays, TAIGA-IACT array (Imaging Atmospheric Cherenkov Telescope) and Tunka-Rex radio antennas array (Tunka Radio Extension). This complex is located in the Tunka Valley (Buryatia Republic, Russia), 50 km from Lake Baikal. It is aimed at investigating the energy spectrum and mass composition of charged cosmic rays in the energy range 100 TeV - 1000 PeV, searching for diffuse gamma rays above 100 TeV and studying local sources of gamma rays with energies above 30 TeV. This report outlines 3 key points. The first is a description of the Tunka-Grande and TAIGA-Muon scintillation arrays. The second part presents preliminary results of the search for diffuse gamma rays with energies above 50 PeV according to the Tunka-Grande data. The third part is devoted to the prospects of the search for diffuse gamma rays with energies above 100 TeV using the TAIGA-Muon array.

Published
2020

20. First detection of gamma-ray sources at TeV energies with the first imaging air Cherenkov telescope of the TAIGA installation

Author

M. Popesku, V. S. Ptuskin, A. Pushnin, M. Slunecka, M. V. Lavrova, A. Petrukhin, M. Tluczykont, A. Silaev junior, Andrey Sokolov, Grigory Rubtsov, A. N. Dyachok, N. N. Kalmykov, L. A. Kuzmichev, B.A. Tarashansky, V. M. Grebenyuk, M. Ternovoy, N. Ushakov, O. A. Gress, V. A. Kozhin, O. G. Grishin, R. R. Mirgazov, V. Samoliga, A. Ivanova, L. V. Pankov, T. I. Gress, L. G. Sveshikova, N. B. Lubsandorzhiev, Y. Suvorkin, A. Borodin, Aleksandr Gafarov, Evgeny Postnikov, V. A. Poleschuk, E. A. Osipova, Mikhail Panasyuk, A. Bulan, Pavel Bezyazeekov, A. A. Silaev, A. V. Zagorodnikov, D. Zhurov, D. Voronin, A. Chiavassa, A. Porelli, V. V. Kindin, B. K. Lubsandorzhiev, R. Mirzoyan, V.A. Tabolenko, Y. Sagan, A. Yu. Garmash, E. A. Kravchenko, E. E. Korosteleva, L. G. Tkachev, R. P. Kokoulin, K. G. Kompaniets, A. V. Skurikhin, P. Volchugov, A. Pan, A. L. Pakhorukov, Evgenii V Rjabov, N. M. Budnev, A. Tanaev, A. Yu. Sidorenkov, Dieter Horns, A. Vaidyanathan, Roman Raikin, E.G. Popova, A. A. Grinyuk, R. Wischnewski, R. D. Monkhoev, I. I. Yashin, Alexander Kryukov, M. Brückner, Anatoly Lagutin, Yu. Lemeshev, S. Kiryuhin, V. V. Prosin, M. Blank, and I. I. Astapov

Subjects
Telescope, Physics, History, law, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, Cherenkov radiation, Computer Science Applications, Education, law.invention
Abstract

TAIGA array addresses gamma-ray astronomy at energies from a few TeV to several PeV as well as cosmic ray physics from 100 TeV to several EeV. A 1 km2 TAIGA setup will consist of 120 wide-angle detectors of the Cherenkov timing array TAIGA-HiSCORE and three imaging air Cherenkov telescopes with the field of view diameter of 9.6°. In this paper, first experimental results of the first operation stage are presented: signal detection from two gamma-ray sources, the Crab Nebula and Markarian 421, by the first IACT in stand-alone mode. The detected signal is shown to be in agreement with the Monte Carlo expectation. In future, gamma-ray signal will be detected by a larger number of TAIGA telescopes as well as the TAIGA-HiSCORE array, that is, in combined operation mode.

Published
2020

21. Possibilities of the Tunka-Grande and TAIGA-Muon scintillation arrays with the TAIGA-HiSCORE Cherenkov array joint operation in the research of cosmic and gamma rays

Author

A Ivanova, N Budnev, A Chiavassa, A Dyachok, A Gafarov, A Garmash, V Grebenyuk, O Gress, T Gress, O Grishin, A Grinyuk, D Horns, N Kalmykov, V Kindin, S Kiryuhin, R Kokoulin, K Kompaniets, E Korosteleva, I Kotovschikov, V Kozhin, E Kravchenko, A Krykov, L Kuzmichev, A Lagutin, Y Lemeshev, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, E Osipova, A Pakhorukov, A Pan, M Panasyuk, L Pankov, A Petrukhin, V Poleschuk, E Popova, A Porelli, E Postnikov, V Prosin, V Ptuskin, A Pushnin, R Raikin, G Rubtsov, E Rybov, Y Sagan, V Samoliga, A Silaev, A Sidorenkov, A Skurikhin, C Slunecka, A Sokolov, Y Suvorkin, L Sveshnikova, V Tabolenko, A Tanaev, B Tarashansky, M Ternovoy, L Tkachev, M Tluczykont, R Togoo, N Ushakov, A Vaidyanathan, P Volchugov, D Voronin, R Wischnevski, A Zagorodnikov, D Zhurov, and I Yashin

Subjects
Physics, History, Scintillation, Muon, COSMIC cancer database, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, Computer Science Applications, Education, Joint (geology), Cherenkov radiation
Abstract

The Tunka-Grande scintillation array is part of the TAIGA Gamma Observatory. It is intended for investigation of energy spectrum and mass composition of primary cosmic rays in the energy range 10 PeV–10 EeV and the search for diffuse cosmic gamma rays. The TAIGA-HiSCORE Cherenkov array aims at observing gamma-rays with the energy from 1 TeV. TAIGA-Muon low-threshold scintillation detector array is a network of surface and underground detectors for registration charge particles of EAS. Currently, 3 clusters have been deployed. The first cluster is running in test mode. It is planed that in the future the total area of the TAIGA-Muon will be about 2000 sq. m. and it will search astrophysical gamma-rays in the energy range from 100 TeV together with the Tunka-Grande scintillation array and the Cherenkov experiments of the TAIGA Gamma Observatory. To evaluate the possibility of join operation Tunka-Grande, TAIGA-Muon and TAIGA-HiSCORE, a simulation was performed using the CORSIKA and Geant4 software packages. The status of model-based studies is presented and assessed the prospects for joint operation of the arrays.

Published
2020

22. Development of a novel wide-angle gamma-ray imaging air Cherenkov telescope with SiPM-based camera for the TAIGA hybrid installation

Author

A. Chiavassa, E. A. Bonvech, Anatoly Lagutin, T. I. Gress, Dmitry Chernov, R. D. Monkhoev, R. Mirzoyan, Mihai Popescu, I. I. Yashin, A. Sidorenkov, L. G. Sveshnikova, D. Zhurov, V. Samoliga, V. A. Poleschuk, A. V. Skurikhin, A. Garmash, L. G. Tkachev, N. B. Lubsandorzhiev, E. A. Osipova, R. R. Mirgazov, D. Chernukh, Roman Raikin, Aleksandr Gafarov, Grigory Rubtsov, Oleg Fedorov, Pavel Bezyazeekov, N. N. Kalmykov, D. Voronin, Y. Sagan, A. A. Silaev, A. V. Zagorodnikov, Dieter Horns, A. A. Grinyuk, Mikhail Panasyuk, D. A. Podgrudkov, V. Vorobiov, A. Borodin, A. N. Dyachok, E. A. Kravchenko, B. K. Lubsandorzhiev, M. Brueckner, E. E. Korosteleva, O. A. Gress, A. Pushnin, B.A. Tarashansky, E. Popova, A. A. Petrukhin, Evgeny Postnikov, R. P. Kokoulin, P. Volchugov, V. A. Kozhin, A. L. Pakhorukov, V. V. Kindin, M. Tluczykont, A. Tanaev, Yulia Kazarina, I. I. Astapov, V.A. Tabolenko, R. Wischnewski, Yu. Lemeshev, V. Slunecka, E. Rybov, V. S. Ptuskin, S. Kiryuhin, V. V. Prosin, N. Ushakov, L. V. Pankov, L. M. Ternovoy, Andrey Sokolov, K. G. Kompaniets, A. Ivanova, A. Vaidyanathan, O. Grishin, A. Porelli, A. Pan, N. M. Budnev, L. A. Kuzmichev, V. M. Grebenyuk, Y. Suvorkin, and A. Krykov

Subjects
Physics, Data processing, business.industry, Gamma ray, Cosmic ray, Electromagnetic radiation, law.invention, Telescope, Optics, Silicon photomultiplier, Data acquisition, law, business, Instrumentation, Mathematical Physics, Cherenkov radiation
Published
2020

23. An approach for identification of ultrahigh energy extensive air showers with scintillation detectors at TAIGA experiment

Author

T. I. Gress, A. Chiavassa, E. Popova, Y. Suvorkin, E. A. Osipova, A. V. Skurikhin, Pavel Bezyazeekov, V. Slunecka, B.A. Tarashansky, V. A. Poleschuk, V. S. Ptuskin, V. Vorobyev, L. G. Tkachev, Mihai Popescu, Dieter Horns, D. Voronin, B. K. Lubsandorzhiev, M. Brueckner, Mikhail Panasyuk, D. Zhurov, D. Chernukh, A. Garmash, A. Ivanova, E. A. Kravchenko, E. E. Korosteleva, Y. Sagan, R. P. Kokoulin, N. B. Lubsandorzhiev, Andrey Sokolov, V. V. Lenok, V. Samoliga, L. G. Sveshnikova, A. Krykov, R. Wischnewski, R. Mirzoyan, A. Pushnin, A. Bulan, M. Tluczykont, P. Volchugov, A. L. Pakhorukov, Anatoly Lagutin, Roman Raikin, R. R. Mirgazov, A. Tanaev, O. A. Gress, L. A. Kuzmichev, V. M. Grebenyuk, A. Pan, Oleg Fedorov, V. A. Kozhin, V. V. Kindin, A. Porelli, N. M. Budnev, A. A. Grinyuk, A. Silaev junior, A. Borodin, R. D. Monkhoev, A. Vaidyanathan, K. G. Kompaniets, I. I. Yashin, A. Sidorenkov, O. Grishin, Aleksandr Gafarov, A. N. Dyachok, A. A. Silaev, A. V. Zagorodnikov, Evgeny Postnikov, N. Ushakov, A. A. Petrukhin, L. V. Pankov, Yulia Kazarina, L. M. Ternovoy, Yu. Lemeshev, S. Kiryuhin, V. V. Prosin, I. I. Astapov, Grigory Rubtsov, N. N. Kalmykov, E. Rybov, and V.A. Tabolenko

Subjects
Scintillation, Detector, Scintillation counter, Taiga, Measuring instrument, Environmental science, Cosmic ray, Ultrahigh energy, Instrumentation, Mathematical Physics, Particle detector, Remote sensing
Published
2020

24. TAIGA—an advanced hybrid detector complex for astroparticle physics and high energy gamma-ray astronomy in the Tunka valley

Author

N. Budnev, I. Astapov, P. Bezyazeekov, E. Bonvech, V. Boreyko, A. Borodin, M. Brückner, A. Bulan, D. Chernov, D. Chernykh, A. Chiavassa, A. Dyachok, O. Fedorov, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. Gress, A. Grinyuk, O. Grishin, D. Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, D. Kostunin, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Kryukov, L. Kuzmichev, A. Lagutin, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. Panasyuk, L. Pankov, D. Podgrudkov, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Petrukhin, A. Pushnin, R. Raikin, E. Rjabov, G. Rubtsov, Y. Sagan, V. Samoliga, A. Sidorenkov, A. Silaev, A. Silaev (junior), A. Skurikhin, M. Slunecka, A. Sokolov, L. Sveshnikova, Y. Suvorkin, V. Tabolenko, A. Tanaev, B. Tarashansky, L. M.Ternovoy, A. Tkachenko, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, D. Voronin, R. Wischnewski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Subjects
Astroparticle physics, Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Physics beyond the Standard Model, High Energy Physics::Phenomenology, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Elementary particle, Gamma-ray astronomy, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Observatory, 0103 physical sciences, Instrumentation, Axion, Mathematical Physics
Abstract

The TAIGA observatory addresses ground-based gamma-ray astronomy at energies from a few TeV to several PeV, cosmic ray physics from 100 TeV to several EeV as well as for search for axion-like particles, Lorentz violations and another evidence of New Physics. In 2020 year a one square kilometer TAIGA setup should be put in operation.

Published
2020

25. Design features and data acquisition system of the TAIGA-Muon scintillation array

Author

A. Ivanova, N. Budnev, A. Chiavassa, A. Dyachok, O. Fedorov, A. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. Gress, O. Grishin, A. Grinyuk, D. Horns, N. Kalmykov, Y.A. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. Kozhin, E. Kravchenko, A. Krykov, L. Kuzmichev, A. Lagutin, Y. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popescu, E. Popova, A. Porelly, E. Postnikov, V.V. Prosin, V.S. Ptuskin, A.A. Pushnin, R. Raikin, G. Rubtsov, E. Rybov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev Jr., A. Sidorenkov, A. Skurikhin, C. Slunecka, A. Sokolov, C. Spiering, Y. Suvorkin, L. Sveshnikova, V. Tabolenko, A. Tanaev, B. Tarashansky, M. Ternovoy, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, D. Voronin, R. Wischnevski, A. Zagorodnikov, D. Zhurov, and I. Yashin

Subjects
spectrometer [muon], data acquisition, 01 natural sciences, 030218 nuclear medicine & medical imaging, 03 medical and health sciences, 0302 clinical medicine, Data acquisition, 0103 physical sciences, ddc:610, spectrometer: design, Instrumentation, activity report, scintillation counter, Mathematical Physics, Remote sensing, Data processing, Scintillation, Muon, 010308 nuclear & particles physics, Taiga, design [spectrometer], design [electronics], electronics: readout, control system, readout [electronics], Geology, muon: spectrometer, electronics: design
Abstract

International Conference on Instrumentation for Colliding Beam Physics, INSTR20, Novosibirsk, Russia, 24 Feb 2020 - 28 Feb 2020; Journal of Instrumentation 15(06), C06057 (2020). doi:10.1088/1748-0221/15/06/C06057, The TAIGA-Muon scintillation array is located in the Tunka Valley. It is a part of the single TAIGA experimental complex. Its construction has started in the summer of 2019. By the autumn of 2019, the first three clusters were installed. We describe the design of the TAIGA-Muon array, the data acquisition (DAQ) sistem, reading and control systems., Published by Inst. of Physics, London

Published
2020

26. Status of the Tunka Advanced Instrument for Cosmic Ray Physics and Gamma Astronomy (TAIGA)

Author

R. D. Monkhoev, T. I. Gress, E. A. Kravchenko, Yu. Lemeshev, E. E. Korosteleva, E. A. Osipova, M. Kunnas, Pavel Bezyazeekov, R. P. Kokoulin, S. Kiryuhin, Aleksandr Gafarov, R. R. Mirgazov, K. G. Kompaniets, V. A. Poleschuk, M. Popesku, A. A. Silaev, A. Pakhorukov, A. Chiavassa, V. Prosin, D. Zhurov, L. G. Tkachev, V. V. Lenok, Oleg Fedorov, B. M. Sabirov, Valery Zurbanov, R. Wischnewski, A. Borodin, V. Slunecka, O. Grishin, A. Porelli, Aleksey Zagorodnikov, A. N. Dyachok, V. S. Ptuskin, Ch. Spiering, A. A. Petrukhin, A. V. Skurikhin, I. I. Yashin, R. Nachtigall, B.A. Tarashansky, Yulia Kazarina, V.A. Tabolenko, A. V. Tkachenko, Yu. A. Semeney, A. Sidorenkov, L. G. Sveshnikova, Andrey Sokolov, R. Mirzoya, Grigory Rubtsov, L. V. Pankov, N. N. Kalmykov, Evgenii V Rjabov, E.G. Popova, M. Tluczykont, A. A. Grinyuk, O. A. Gress, V. A. Kozhin, I. I. Astapov, V. V. Kindin, N. M. Budnev, V. Samoliga, Y. Sagan, Mikhail Panasyuk, L. A. Kuzmichev, V. M. Grebenyuk, N. B. Lubsandorzhiev, M. Brueckner, A. Ivanova, A. Pushnin, Evgeny Postnikov, and Bayarto Lubsandorzhiev

Subjects
Physics, Gamma ray, Astronomy, Cosmic ray, Cherenkov radiation, Muon detector
Published
2018

27. TAIGA - a hybrid array for high energy gamma astronomy and cosmic ray physics

Author

N. Budnev, I. Astapov, P. Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, A. Chiavassa, A. Dyachok, O. Fedorov, A. Gafarov, A. Garmash, N. Gorbunov, V. Grebenyuk, O. Gress, T. Gress, O. Grishin, A. Grinyuk, A. Haungs, R. Hiller, D. Horns, T. Huege, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, P. Kirilenko, M. Kleifges, R. Kokoulin, K. Kompaniets, E. Korosteleva, D. Kostunin, V. Kozhin, E. Kravchenko, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, M. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, E. Rjabov, G. Rubtsov, A. Pushnin, Y. Sagan, B. Sabirov, V. Samoliga, F. Schröder, Yu. Semeney, A. Silaev, A. Sidorenkov, A. Skurikhin, V. Slunecka, A. Sokolov, C. Spiering, L. Sveshnikova, V. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, A. Zagorodnikov, D. Zhurov, V. Zurbanov, and I. Yashin

Subjects
Physics, Range (particle radiation), High energy, 010308 nuclear & particles physics, QC1-999, Taiga, Detector, Gamma ray, Astronomy, Cosmic ray, 01 natural sciences, Galaxy, Hybrid array, 0103 physical sciences, ddc:530, 010303 astronomy & astrophysics
Abstract

The physics motivations and advantages of the new TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) detector are presented. TAIGA aims at gamma-ray astronomy at energies from a few TeV to several PeV, as well as cosmic ray physics from 100 TeV to several EeV. For the energy range 30 – 200 TeV the sensitivity of 10 km2 area TAIGA array for the detection of local sources is expected to be 5 × 10-14 erg cm-2 sec-1 for 300 h of observations. Reconstruction of the given EAS energy, incoming direction and its core position, based on the timing TAIGA-HiSCORE data, allows one to increase a distance between the IACTs up to 600-1000 m. The low investments together with the high sensitivity for energies ≥ 30-50 TeV make this pioneering technique very attractive for exploring the galactic PeVatrons and cosmic rays. At present the TAIGA first stage has been constructed in Tunka valley, 50 km West from the Lake Baikal. The first experimental results of the TAIGA first stage are presented.

Published
2018

28. TAIGA-HiSCORE detection of the CATS-Lidar on the ISS as fast moving point source

Author

Ralf Wischnewski, A. Porelli, A. Garmash, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, N. Gorbunov, E.S. Gorbovskoy, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, V.M. Lipunov, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, G. Spengler, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Robotic telescope, Lidar, Forward scatter, Point source, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Calibration, Gamma ray, Environmental science, Satellite, Physics::Atmospheric and Oceanic Physics, Cherenkov radiation, Remote sensing
Abstract

We report the first ground-based observation of the CATS-LIDAR onboard the ISS by the TAIGA-HiSCORE gamma-ray facility, and the MASTER-Tunka Robotic telescope. HiSCORE detects unscattered laser light directly from the ISS, at up to km-scale distance from the laser beam spot on ground. The ISS-LIDAR turns out to be a unique calibration tool, in particular to verify the absolute astronomical pointing of HiSCORE. We detected the LIDAR for 11 ISS-passages; among these were observations of forward scattering of the laser beam in dense clouds, which might carry information complementary to the LIDAR technique. We expect other air Cherenkov installations like IACTs to benefit from this light source.

Published
2017

29. TAIGA-HiSCORE: results from the first two operation seasons

Author

I. V. Yashin, Evgeny Postnikov, V. V. Kindin, Bayarto Lubsandorzhiev, A. A. Petrukhin, Mikhail Panasyuk, B.A. Tarashansky, Yulia Kazarina, V. V. Lenok, Razmik Mirzoyan, Yu. Semeney, E. M. Popescu, Valery Zurbanov, Yaroslav Sagan, B. M. Sabirov, A. Porelli, A. Chiavassa, V. Prosin, Grigory Rubtsov, N. N. Kalmykov, O. A. Gress, A. V. Tkachenko, V. A. Poleschuk, E.G. Popova, A. Sidorenkov, A. N. Dyachok, C. Spiering, V. A. Kozhin, Andrey Sokolov, L. G. Sveshnikova, N. M. Budnev, M. Brueckner, N. B. Lubsandorzhiev, Martin Tluczykont, Yu. Lemeshev, V.A. Tabolenko, S. Kiryuhin, R. D. Monkhoev, T. I. Gress, D. Zhurov, V. Slunecka, E. A. Kravchenko, I. I. Astapov, V. S. Ptuskin, E. E. Korosteleva, A.V. Skurihin, A. Ivanova, P. Kirilenko, L. V. Pankov, A. Garmash, Ralf Wischnewski, L. A. Kuzmichev, R. Nachtigall, R. R. Mirgazov, Dieter Horns, Oleg Fedorov, A. Borodin, A. Pushnin, E. A. Osipova, Pavel Bezyazeekov, V. Boreyko, N. V. Gorbunov, A. Pakhorukov, L. G. Tkachev, V. Samoliga, M. Kunnas, Evgenii V Rjabov, Aleksey Zagorodnikov, K. G. Kompaniets, O. Grishin, Victor Grebenyuk, A. A. Grinyuk, Aleksandr Gafarov, A. A. Silaev, and R. P. Kokoulin

Subjects
Lidar, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Calibration, Environmental science, Cutoff, Sampling (statistics), Cosmic ray, Satellite, Cherenkov radiation, Remote sensing
Abstract

The very to ultra high energy gamma-ray regime up to several 100 TeV is the key to spectrally resolve the cutoff regime of the long-sought Pevatrons, the Galactic cosmic-ray PeV accelerators. One component of the TAIGA hybrid detector is the TAIGA-HiSCORE shower-front sampling timing array, which currently consists of 28 wide angle (0.6\,sr) air Cherenkov timing stations distributed on an area of 0.25 km$^{2}$, and which will be doubled in area by fall 2017. We report on the status and first results of the HiSCORE timing array after the first 2 operation seasons, including calibration studies on timing and pointing, cross calibration with data from the first TAIGA-IACT, observations with the timing array of a LIDAR operating on the ISS, a measurement of the Cosmic Ray spectrum, and a systematic search for high energy gamma-rays from Galactic sources such as the Crab.

Published
2017

30. TAIGA - a hybrid detector complex for high energy gamma-ray astro-physics and cosmic ray physics in the Tunka valley

Author

Nikolai Mikhailovich Budnev, Leonid A Kuzmichev, Razmik Mirzoyan, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, Martin Brueckner, Andrea Chiavassa, Aleksei Nikolaevich Dyachok, Oleg Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, Victor Kindin, P. Kirilenko, S. Kiryuhin, Rostislav Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, Yu. Lemeshev, V. Lenok, Bayarto Lubsandorzhiev, Nima Lubsandorzhiev, Rashid Mirgazov, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, Mikhail Panasyuk, Leonid Pankov, Anatoly Petrukhin, V. Poleschuk, Eugeny Popescu, E. Popova, Andrea Porelli, E. Postnikov, V. Prosin, Vladimir Ptuskin, Evgenii V Rjabov, Grigory Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, Vladimir Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. Sokolov, Christian Spiering, Lyubov Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, Leonid Tkachev, Martin Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and Igor Yashin

Subjects
Physics, Telescope, law, Detector, Gamma ray, Astronomy, Cosmic ray, IACT, Galaxy, Energy (signal processing), Cherenkov radiation, law.invention
Abstract

The physics motivations and characteristics of the new gamma-experiment TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) are presented. The TAIGA experiment 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. For the energy range $30 - 200$ TeV the sensitivity of the planned for future extension of TAIGA up to $5$ km$^2$ area for detection of the local sources is expected to be $10^{-13}$ erg cm$^{-2}$ sec$^{-1}$ for $500$ h of observation. The combination of the wide angle Cherenkov timing detectors of the TAIGA-HiSCORE array and the $4$ m class Imaging Atmospheric Cherenkov Telescopes of the TAIGA-IACT array with their FoV of $10x10$ degrees offers a cost effective-way to construct a $5$ km$^2$ array. Reconstruction of an EAS energy, direction and core position based on the TAIGA-HiSCORE data will allow us to increase the distance between comparatively expensive IACTs up to $800 - 1200$ m. The low investments together with the high sensitivity for energies $\geqslant 30-50$ TeV make this pioneering technique very attractive for exploring the galactic PeVatrons and cosmic rays. In addition to the Cherenkov light detectors we intend to deploy an array of muon detectors (TAIGA-Muon array) over an area of 1 km$^2$ with a total area of about $2000 - 3000$ m$^2$. The TAIGA-IACT-HiSCORE together with the TAIGA-Muon array will be used for selection of gamma-ray induced EAS. At present the first stage of TAIGA have been constructed in the Tunka valley, $\sim 50$ km West from the Lake Baikal in Siberia. Now it consists of 28 TAIGA-HiSCORE Cherenkov stations distributed over an area of $0.25$ km$^2$ and the first IACT of the TAIGA-IACT array. We are planning to test operation of the single telescope in coincidence with the HiSCORE up to shower impact distances of $\sim 500 - 600$ m; for this purpose we already started construction of the second imaging telescope at $300$ m distance from the first one. During 2017 -- 2019 years we intend to increase the number of the TAIGA-HiSCORE stations up to $100 - 120$, spread on the area of $1$ km$^2$ and to deploy $2$ additional IACTs.

Published
2017

31. The TAIGA timing array HiSCORE - first results

Author

M. Tluczykont, N. Budnev, I. Astapov, N. Barbashina, A. Bogdanov, V. Boreyko, M. Brückner, A. Chiavassa, O. Chvalaev, O. Gress, T. Gress, O. Grishin, A. Dyachok, S. Epimakhov, O. Fedorov, A. Gafarov, N. Gorbunov, V. Grebenyuk, A. Grinuk, D. Horns, A. Kalinin, N. Karpov, N. Kalmykov, Y. Kazarina, S. Kiryuhin, R. Kokoulin, K. Kompaniets, A. Konstantinov, E. Korosteleva, V. Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, R. Mirgazov, R. Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, G. Rubtsov, A. Pushnin, V. Samoliga, P. Satunin, Yu. Semeney, A. Silaev, A. Skurikhin, M. Slunecka, A. Sokolov, C. Spiering, L. Sveshnikova, V. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, D. Voronin, R. Wischnewski, A. Zagorodnikov, V. Zurbanov, D. Zhurov, and I. Yashin

Subjects
Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, QC1-999, Detector, Taiga, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Astrophysics, 01 natural sciences, Air shower, Sampling (signal processing), 0103 physical sciences, 010303 astronomy & astrophysics, Cherenkov radiation, Remote sensing
Abstract

Observations of gamma rays up to several 100 TeV are particularly important to spectrally resolve the cutoff regime of the long-sought Pevatrons, the cosmic-ray PeV accelerators. One component of the TAIGA hybrid detector is the TAIGA-HiSCORE timing array, which currently consists of 28 wide angle (0.6 sr) air Cherenkov timing stations distributed on an area of 0.25 km2 . The HiSCORE concept is based on (non-imaging) air shower front sampling with Cherenkov light. First results are presented.

Published
2017

32. Method of Separation Between Light and Heavy Groups of Primary CR Nuclei by LDF of Cherenkov Light in the Range 300–3000 TeV

Author

A S Elshoukrofy, L Sveshnikova, E Postnikov, I Astapov, P Bezyazeekov, V Boreyko, A Borodin, M Brueckner, N Budnev, A Chiavassa, A Dyachok, O Fedorov, A Gafarov, A Garmash, N Gorbunov, V Grebenyuk, O Gress, T Gress, O Grishin, A Grinyuk, D Horns, A Ivanova, N Kalmykov, Y Kazarina, V Kindin, S Kiryuhin, P Kirilenko, R Kokoulin, K Kompaniets, E Korosteleva, V Kozhin, E Kravchenko, M Kunnas, L Kuzmichev, Y Lemeshev, V Lenok, B Lubsandorzhiev, N Lubsandorzhiev, R Mirgazov, R Mirzoyan, R Monkhoev, R Nachtigall, E Osipova, A Pakhorukov, M Panasyuk, L Pankov, A Petrukhin, V Poleschuk, M Popescu, E Popova, A Porelli, V Prosin, V Ptuskin, E Rjabov, G Rubtsov, A Pushnin, Y Sagan, B Sabirov, V Samoliga, Y Semeney, A Silaev, A Silaev Jr, A Sidorenkov, A Skurikhin, V Slunecka, A Sokolov, C Spiering, V Tabolenko, B Tarashansky, A Tkachenko, L Tkachev, M Tluczykont, R Wischnewski, A Zagorodnikov, D Zhurov, V Zurbanov, I Yashin, A A Darwish, and H A Motaweh

Subjects
Physics, Range (particle radiation), Distribution function, Primary (astronomy), Astrophysics::High Energy Astrophysical Phenomena, Separation (aeronautics), Measurement uncertainty, Energy (signal processing), Cherenkov radiation, Computational physics, Parametric statistics
Abstract

The problem of chemical composition below the knee in the cosmic-ray energy spectrum has not yet been solved due to low statistics collected from direct experiments. In the HiSCORE experiment the lateral distribution functions (LDF) of Cherenkov light of EASs with energy greater than hundreds of TeV can be measured in detail for millions of individual events. A full steepness of LDF is sensitive to the depth of shower maximum and as a result to primary particle type. In this paper, we developed a parametric method of separation between heavy and light groups of nuclei using the ’knee-like’ approximation of LDF and taking into account measurement uncertainty.

Published
2018

34. TAIGA observatory: IACT fabrication and tests

Author

Yaroslav Sagan, I. Astapov, Pavel Bezyazeekov, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, A. N. Dyachok, O. Fedorov, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, N. Lubsandorzhiev, B. Lubsandorzhiev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, E. Rjabov, G. Rubtsov, B. Sabirov, V. Samoliga, Andrei Sidorenkov, A. Silaev, A. Silaev(junior), V. Slunecka, A. V. Skurikhin, A. Sokolov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, A. Tanaev, B. Tarashansky, L. Tkachev, M. Tluczykont, R. Wishnevski, I. Yashin, A. Zagorodnikov, and D. Zhurov

Subjects
Physics, Fabrication, Observatory, Gamma ray, Astronomy, Cosmic ray, IACT, Cherenkov radiation
Abstract

Imaging Atmospheric Cherenkov Telescopes (IACTs) are one of the key parts of the TAIGA observatory, which is designed to study gamma rays and charged cosmic rays in the energy range of 10^13 eV – 10^18 eV. The current prototype phase comprises three IACTs. The first IACT was fabricated at JINR, Dubna, and started its first commissioning season in the Tunka valley in 2017. The second one has been assembled there in fall 2018, the third structure one is ready for installation in autumn 2019. This report presents the main TAIGA IACT characteristics and results from pointing performance studies in the last 2 seasons. We also describe R&D activities started to fabricate focusing glass mirrors at JINR, and give results for the first prototypes measurements.

35. Commissioning the joint operation of the wide angle timing HiSCORE Cherenkov array with the first IACT of the TAIGA experiment

Author

Lyubov Sveshnikova, E. Postnikov, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, A.S. Elshoukrofy, O. Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, IACT, Cosmic ray, Coincidence, law.invention, Telescope, law, Hybrid array, Environmental science, Image resolution, Cherenkov radiation, Remote sensing
Abstract

The first IACT as part of the gamma and cosmic-ray experiment TAIGA was installed in the Tunka Valley near Lake Baikal in fall 2016. In the following months different systems of the telescope were put into test operation. We started the commissioning phase of operating the telescope in time coincidence with the wide angle integrating air Cherenkov HiSCORE array, which for the time being comprises 28 working stations. We anticipate that the hybrid operation of the non-imaging and imaging telescopes will lead to a cost-efficient, highly sensitive detector operating in the energy range from 30-50 TeV till several PeV. Here we want to report on the first test results of operating the prototype hybrid array. We will focus on the analysis of count rates and image size spectra for all events detected by the IACT and the joint events detected also by the HiSCORE array, comparing these with expectations from MC simulations.

36. Search for gamma-ray emission above 50 TeV from Crab Nebula with the TAIGA detector

Author

Lyubov Sveshnikova, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, N. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Physics, Crab Nebula, Observatory, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Extrapolation, Gamma ray, Cosmic ray, Angular resolution, Astrophysics, Cherenkov radiation
Abstract

The TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma-Astronomy) observatory is designed to study the gamma ray sources and galactic cosmic rays. It is located in the Tunka Valley 50 km from the lake Baikal (Siberia). The first part of TAIGA called the EAS Cherenkov array TAIGA-HiSCORE currently consists of 28 wide-angle (0.6 sr) stations, distributed over an area of 0.25 km^2. The Crab observation exposure was about 115 hours during the winter seasons of 2016-2017. The expected gamma quanta excess depends on the array energy threshold and a model of the Crab energy spectrum extrapolation to the higher energies. We present preliminary results of experimental data and MC simulations comparison as well as energy threshold and angular resolutions. The experimental data is in a good agreement with the simulations. An excess of events (about 25 events in the region 30-63 TeV) observed from the Crab direction is compatible with the expected one.

37. Camera of the first TAIGA-IACT: Construction and calibration

Author

Nima Lubsandorzhiev, I. Astapov, Pavel Bezyazeekov, V. Boreyko, A. Borodin, M. Brueckner, N. M. Budnev, A. Chiavassa, Aleksei Nikolaevich Dyachok, O. Fedorov, Aleksandr Gafarov, A. Garmash, N. Gorbunov, Victor Grebenyuk, O. Gress, T. I. Gress, O. Grishin, A. Grinyuk, Dieter Horns, A. Igoshin, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, M. Kunnas, L. Kuzmichev, Yu. Lemeshev, V. Lenok, B. Lubsandorzhiev, Rashid Mirgazov, Razmik Mirzoyan, R. Monkhoev, R. Nachtigall, E. Osipova, A. Pakhorukov, M. I. Panasyuk, Leonid Pankov, A. Petrukhin, V. Poleschuk, E. Popescu, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, Evgenii V Rjabov, G. Rubtsov, A. Pushnin, Yaroslav Sagan, B. Sabirov, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, Aleksandr Vasilevich Skurihin, V. Slunecka, A. V. Sokolov, C. Spiering, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, A. Tkachenko, L. Tkachev, M. Tluczykont, R. Wischnewski, Aleksey Zagorodnikov, D. Zhurov, Valery Zurbanov, and I. Yashin

Subjects
Physics, Photomultiplier, business.industry, Detector, IACT, law.invention, Telescope, Data acquisition, Optics, law, Calibration, Focal length, business, Cherenkov radiation
Abstract

The first imaging atmospheric Cherenkov telescope as a part of the TAIGA (Tunka Advanced Instrument for cosmic rays and Gamma Astronomy) detector was put into commission in the Tunka valley in December 2016. The reflector of the telescope follows the Davis-Cotton design. It is composed of 34 glassmirror tiles, each of 60 cm diameter, and has a diameter of 4.3 m. The focal length is 4.75 m. The imaging camera includes 560 photomultiplier-based pixels, providing a FoV of ~10×10 degrees. The imaging camera is made by using a modular principle and includes trigger, data acquisition and processing systems based on MAROC3 chips. The slow control system monitors the count rate and the PMT anode currents as well as controls the high voltage. For monitoring performance of the camera a dedicated calibration system based on nanosecond pulsed LED light source was developed.

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