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105 results on '"L. G. Sveshnikova"'

1. Energy Spectrum of Primary Cosmic Rays According to the Data of the TAIGA Astrophysical Complex

Author

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

Subjects
General Physics and Astronomy
Published
2023

2. Astroclimate of the High Mountain Plains of the Greater Altai, According to Satellite Remote Sensing Data: Potential for Deploying a Full-Scale Gamma Astronomy Experiment

Author

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

Subjects
General Physics and Astronomy
Published
2022

3. Cosmic Ray Study at the Astrophysical Complex TAIGA: Results and Plans

Author

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

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

4. Detecting Gamma Rays with Energies Greater than 3–4 ТeV from the Crab Nebula and Blazar Markarian 421 by Imaging Atmospheric Cherenkov Telescopes in the TAIGA Experiment

Author

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

Subjects
010302 applied physics, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 01 natural sciences
Published
2021

5. First Results from Operating a Prototype Wide-Angle Telescope for the TAIGA Installation

Author

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

Subjects
010302 applied physics, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 01 natural sciences
Published
2021

6. Experimental Complex TAIGA

Author

N. Ushakov, N. B. Lubsandorzhiev, E. A. Kravchenko, Yu. Lemeshev, D. Chernykh, E. E. Korosteleva, Anatoly Lagutin, L. V. Pankov, A. Garmash, R. P. Kokoulin, A. V. Skurikhin, P. Volchugov, Andrey Sokolov, V. V. Prosin, D. A. Podgrudkov, A. L. Pakhorukov, Dmitry Chernov, M. Blank, A. Tanaev, L. G. Sveshnikova, L. G. Tkachev, E. A. Osipova, M. Slunechka, V.A. Tabolenko, Dieter Horns, M. Tluczykont, R. D. Monkhoev, I. I. Astapov, E. Popova, A. Chiavassa, A. Pushnin, M. Ternovoy, I. I. Yashin, A. N. Dyachok, Grigory Rubtsov, P. Bezyazykov, N. N. Kalmykov, D. Shipilov, M. Popesku, A. A. Petrukhin, A. Ivanova, Alexander Kryukov, Y. Sagan, A. Sidorenkov, Evgenii V Rjabov, V. Poleshchuk, D. Voronin, V. S. Ptuskin, Roman Raikin, B. A. Tarashchansky, Mikhail Panasyuk, O. A. Gress, V. Kiryukhin, A. Bulan, A. A. Grinyuk, V. A. Kozhin, V. V. Kindin, T. I. Gress, M. Brückner, R. R. Mirgazov, A. Pan, V. Samoliga, A. Vaidyanathan, Y. Kazarina, Oleg Fedorov, Dmitry Zhurov, A. Borodin, R. Mirzoyan, A. Porelli, A. Bonvech, K. G. Kompaniets, O. Grishin, Evgeny Postnikov, Aleksandr Gafarov, A. A. Silaev, A. V. Zagorodnikov, Bayarto Lubsandorzhiev, Y. Suvorkin, L. A. Kuzmichev, V. M. Grebenyuk, and R. Wischnewski

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, 0103 physical sciences, Taiga, Astronomy, 010306 general physics, 01 natural sciences, Atomic and Molecular Physics, and Optics, Cherenkov radiation
Abstract

The astrophysical complex TAIGA (Tunka Advanced Instrument for cosmic-ray physics and Gamma-ray Astronomy), whose first phase is being completed in the Tunka valley 50 km from Lake Baikal, is described. Its research program, first results, and development prospects are discussed.

Published
2020

7. Status of the TAIGA Experiment: From Cosmic-Ray Physics to Gamma Astronomy in Tunka Valley

Author

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

Subjects
Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Observatory, 0103 physical sciences, Taiga, Astronomy, Cosmic ray, Radiation, 010306 general physics, Hybrid approach, 01 natural sciences, Atomic and Molecular Physics, and Optics
Abstract

The importance and advantages of the hybrid approach developed within the TAIGA project for studying the high-energy section of the spectrum of gamma radiation in the Universe are discussed. The pilot complex of the TAIGA gamma observatory with an area of 1 km $${}^{2}$$ is briefly described along with the lines of its development, and the first results obtained on this basis are given.

Published
2020

8. Monte Carlo Simulation of the TAIGA Hybrid Gamma-Ray Experiment

Author

Evgeny Postnikov, L. G. Sveshnikova, and A. A. Grinyuk

Subjects
Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Detector, Monte Carlo method, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Cosmic ray, 01 natural sciences, Atomic and Molecular Physics, and Optics, Computational physics, Computer Science::Computer Vision and Pattern Recognition, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Cherenkov radiation
Abstract

The TAIGA experiment (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) combines heterogeneous arrays of imaging and non-imaging Cherenkov light detectors for registration of extensive air showers. Monte Carlo simulation of the whole detector response was carried out and is described in this article.

Published
2020

9. Depth of the Maximum of Extensive Air Showers (EASes) and the Mean Mass Composition of Primary Cosmic Rays in the 1015–1018 eV Range of Energies, According to Data from the TUNKA-133 and TAIGA-HiSCORE Arrays for Detecting EAS Cherenkov Light in the Tunkinsk Valley

Author

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

Subjects
010302 applied physics, 010308 nuclear & particles physics, 0103 physical sciences, General Physics and Astronomy, 01 natural sciences
Published
2021

10. TAIGA-IACT pointing control and monitoring software status

Author

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

Published
2021

11. 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

12. First Season of Operation of the TAIGA Hybrid Cherenkov Array

Author

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

Subjects
Physics, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, General Physics and Astronomy, Astronomy, Cosmic ray, IACT, Radiation, law.invention, Telescope, law, Observatory, Cherenkov radiation
Abstract

Work is currently under way in the Tunka Valley, 50 km from Lake Baikal, to create the TAIGA gamma observatory for studying gamma radiation and cosmic ray fluxes in the 1013–1018 eV range of energies. To detect gamma rays with energies above tens of TeV, a hybrid method of detecting showers is implemented. It is based on data obtained by the TAIGA Imaging Atmospheric Cherenkov Telescope (IACT) and the wide-angle TAIGA-HiSCORE array. The preliminary results from processing the telescope’s data for the low-energy region (>2–3 TeV) are presented. Joint events with energy more than 50 TeV are analyzed and compared to Monte Carlo calculations.

Published
2019

13. Monte Carlo Simulation of the TAIGA Experiment

Author

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

Subjects
010302 applied physics, Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Monte Carlo method, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Cosmic ray, 01 natural sciences, Software, Air shower, Observatory, 0103 physical sciences, business, Energy (signal processing), Cherenkov radiation, Remote sensing
Abstract

The TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) experiment aims at observing gamma-rays in the energy range from 1 TeV to several 100 TeV. The operation of the observatory is based on a new hybrid approach that combines imaging air Cherenkov telescopes (IACTs) and wide-angle Cherenkov detectors (TAIGA-HiSCORE) for measuring times of extensive air shower (EAS) light front arrival. Monte Carlo simulations are compared to real data to determine the performance of the detector setup. Dedicated software and algorithms are described, model parameters are given, and an overview of the current status of model-based performance studies is presented.

Published
2019

14. TAIGA: A Complex of Hybrid Systems of Cooperating Detectors for Gamma Astronomy and Cosmic Ray Physics in the Tunka Valley

Author

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

Subjects
010302 applied physics, COSMIC cancer database, 010308 nuclear & particles physics, Observatory, 0103 physical sciences, Detector, Taiga, Gamma ray detectors, General Physics and Astronomy, Astronomy, Cosmic ray, Radiation, 01 natural sciences
Abstract

The relevance and benefits of the new TAIGA gamma observatory complex in the Tunka Valley (50 km from Lake Baikal) are discussed. The main aim of the TAIGA installation is to study high-energy gamma radiation and search for cosmic pevatrons. The first series of gamma stations was commissioned in 2019 and covers an area of 1 km2. Its expected integral gamma radiation sensitivity at an energy of 100 TeV over 300 h of source monitoring is (2–5) × 10−13 TeV cm−2 s−1. It is planned to expand the effective area of TAIGA gamma observation to 10 km2 in the future.

Published
2019

15. Energy Spectrum of Primary Cosmic Rays, According to TUNKA-133 and TAIGA-HiSCORE EAS Cherenkov Light Data

Author

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

Subjects
010302 applied physics, Physics, Range (particle radiation), 010308 nuclear & particles physics, Hadron, General Physics and Astronomy, Flux, Cosmic ray, 01 natural sciences, Spectral line, Nuclear physics, Primary (astronomy), 0103 physical sciences, Energy spectrum, Cherenkov radiation
Abstract

The Tunka-133 Cherenkov complex for recording extensive air showers (EAS) collected data over seven winters from 2009 to 2017. The differential energy spectra of all particles was acquired in the 6 × 1015–3 × 1018 eV range of energies over 2175 h. The TAIGA-HiSCORE complex is continually being expanded and upgraded. Data acquired by 30 first-line stations over 35 days during the period 2017–2018 is analyzed in this work. As at the Tunka-133 setup, the primary particle energies above 1015 eV are measured using the density of the Cherenkov light flux at a distance of 200 m from a shower’s axis. Data on lower energies are collected by determining the energy of the light flux near a shower’s axis. This results in a spectrum of 2 × 1014–1017 eV. The combined spectrum for the two systems covers a range of 2 × 1014–2 × 1018 eV.

Published
2019

16. Energy Spectra of Cosmic-Ray Protons and Nuclei Measured in the NUCLEON Experiment Using a New Method

Author

A. Kurganov, V. M. Grebenyuk, I. Kudryashov, Andrey Turundaevskiy, D. Polkov, L. G. Sveshnikova, V. Shumikhin, V. A. Dorokhov, L. G. Tkachev, S. Yu. Porokhovoi, E. V. Atkin, D. Karmanov, M. Merkin, D. Podorozhny, V. Bulatov, A. V. Tkachenko, Alexander D. Panov, A. A. Voronin, O. Vasiliev, N. V. Gorbunov, I. Kovalev, and S. Filippov

Subjects
Physics, Range (particle radiation), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, chemistry.chemical_element, Astronomy and Astrophysics, Cosmic ray, 01 natural sciences, Spectral line, Nuclear physics, Space experiment, chemistry, Space and Planetary Science, 0103 physical sciences, Nucleon, 010303 astronomy & astrophysics, Carbon, Energy (signal processing)
Abstract

Some results of studies of cosmic rays obtained during the NUCLEON space experiment in 2015–2017 are presented. This experiment was intended for direct measurements of the energy spectra and chemical composition of cosmic rays (Z = 1−30) in the energy range 2–500 TeV. Results presented include energy spectra for various abundant nuclei measured using the new Kinematic Lightweight Energy Meter (KLEM). The primary energies are established using the spatial densities of secondary particles produced in inelastic interactions with a carbon target.

Published
2019

17. Application of New Approximations of the Lateral Distribution of EAS Cherenkov Light in the Atmosphere

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Photon, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Probability density function, 01 natural sciences, Electromagnetic radiation, Atomic and Molecular Physics, and Optics, Computational physics, Massless particle, Distribution function, 0103 physical sciences, Range (statistics), 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

A new knee-like approximation of the lateral distribution function (LDF) of EAS Cherenkov light in the 30–3000 TeV energy range was proposed and tested with simulated showers in our earlier studies. This approximation fits the LDFs of individual showers accurately for all types of primary particles gamma-rays, protons, and nuclei) and is suitable for reconstructing the shower core, determining the energy, and separating gamma-induced showers from hadron-induced ones. In the present study, the knee-like fitting function is used to determine the parameters of real showers detected by TAIGA-HiSCORE. It is demonstrated that this approximation characterizes properly all types of individual LDFs of experimental events in the 300–1000 TeV range. The accuracy of fit is governed by fluctuations intrinsic to the process of measurement of the Cherenkov photon density. The probability density function of these fluctuations was reconstructed and introduced into simulations. Certain useful methodical applications of the knee-like approximation are con-sidered, and the possibility of shower sorting into nuclei groups is examined. The extensive statistical coverage and detailed LDF measurement data of HiSCORE have provided the first opportunity to examine in depth the LDF of Cherenkov radiation in the 300–1000 TeV range.

Published
2018

18. 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

19. 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

20. The TAIGA Experiment: From Cosmic Ray Physics to Gamma Astronomy in the Tunka Valley

Author

L. V. Pankov, Evgeny Postnikov, E. A. Osipova, Yu. Lemeshev, V. S. Ptuskin, A. Pushnin, Pavel Bezyazeekov, V.A. Tabolenko, S. Kiryuhin, L. A. Kuzmichev, V. M. Grebenyuk, Yu. A. Semeney, V. Prosin, M. Slunecka, Bayarto Lubsandorzhiev, B.A. Tarashansky, V. A. Poleschuk, Mikhail Panasyuk, E. I. Kravchenko, N. B. Lubsandorzhiev, N. V. Gorbunov, K. G. Kompaniets, Grigory Rubtsov, N. N. Kalmykov, P. Kirilenko, E. E. Korosteleva, Dmitriy Kostunin, R. Mirzoyan, O. A. Gress, R. P. Kokoulin, A. Pakhorukov, Y. Kazarina, L. G. Tkachev, V. A. Kozhin, A. A. Petrukhin, V. V. Kindin, V. V. Lenok, E.G. Popova, V. Samoliga, A. Ivanova, A. Yu. Sidorenkov, N. M. Budnev, Aleksey Zagorodnikov, A. O. Skurikhin, Andrey Sokolov, I. I. Astapov, A. A. Grinyuk, Y. Sagan, A. V. Boreyko, A. N. Dyachok, L. G. Sveshnikova, A. Yu. Garmash, Dmitry Zhurov, O. G. Grishin, R. D. Monkhoev, T. I. Gress, A. V. Tkachenko, E. V. Ryabov, Aleksandr Gafarov, A. A. Silaev, R. R. Mirgazov, Valery Zurbanov, Oleg Fedorov, A. Borodin, B. M. Sabirov, and I. I. Yashin

Subjects
Physics, Nuclear and High Energy Physics, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Electron, Radiation, 01 natural sciences, Observatory, 0103 physical sciences, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

The article presents the relevance and advantages of the new gamma observatory TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy), which is being constructed in the Tunka Valley 50 km from Lake Baikal. Various detectors of the six TAIGA gamma observatory arrays register the Cherenkov and radio radiation, as well as the electron and muon components of EAS. The primary objective of the TAIGA gamma observatory is to study the high-energy part of the gamma-ray spectrum, in particular, in order to search for Galactic PeVatrons. The energy, direction, and position of the EAS axis are reconstructed in the observatory based on the data of the wide-angle Cherenkov detectors of the TAIGA-HiSCORE experiment. Taking into account this information, the gamma quanta are distinguished from the hadron background using the data obtained by the muon detectors and telescopes that register the EAS image in the Cherenkov light. In this hybrid mode of operation, the atmospheric Cherenkov telescopes can operate in the mono-mode, and the distance between them can be increased to 800–1000 m, which makes it possible to construct an array with an area of 5 km2 and more at relatively low cost and in a short time. By 2019, the first stage of the gamma observatory with an area of 1 km2 will be constructed; its expected integral sensitivity for detecting the gamma radiation with an energy of 100 TeV at observation of the source for 300 hours will be approximately $$2 \times 5$$ 10–13 TeV cm–2s–1.

Published
2018

21. TAIGA Gamma Observatory: Status and Prospects

Author

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

Subjects
Physics, Nuclear and High Energy Physics, Muon, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, IACT, Cosmic ray, 01 natural sciences, Atomic and Molecular Physics, and Optics, Particle detector, Observatory, 0103 physical sciences, Measuring instrument, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract

Over the past few years, the TAIGA (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) observatory has been being deployed in the Tunka Valley, Republic of Buryatia. It is designed for studying gamma rays of energy above 30 TeV and performing searches for sources of galactic cosmic rays with energies in the vicinity of 1 PeV, which is an energy region around the classic knee in the cosmic-ray energy spectrum. The first phase of the observatory will be situated at a distance of about 50 km from Lake Baikal at the site of the Tunka-133 array. The TAIGA gamma observatory will include a network of 500 wide-angle (0.6 sr) Cherenkov detectors (TAIGA-HiSCORE array) and up to 16 atmospheric Cherenkov telescopes (ACT) designed for analyzing the EAS images (imaging atmospheric Cherenkov telescopes, or IACT) and positioned within an area of 5 km2. The observatory will also include muon detectors of total area 2000 m2 distributed over an area of 1 km2. Within the next three years, it is planned to enhance the area of the TAIGA-HiSCORE array by a factor of four—from 0.25 km2 to 1 km2; to supplement the existing IACT with two new ones; and to deploy new muon detectors with a total coverage of 200 m2. The structure of the new observatory is described along with the data analysis techniques used. The most interesting physical results are presented, and the research program for the future is discussed.

Published
2018

22. The Search for Diffuse Gamma Rays Using Data from the Tunka-Grande Experiment

Author

S. Kiryuhin, Valery Zurbanov, O. A. Gress, Aleksandr Gafarov, A. Pushnin, A. Chiavassa, V. Prosin, V. A. Kozhin, A. A. Silaev, E. A. Osipova, D. M. Voronin, A. Pakhorukov, R. D. Monkhoev, T. I. Gress, V. A. Poleschuk, Mikhail Panasyuk, R. R. Mirgazov, A. V. Skurikhin, Bayarto Lubsandorzhiev, L. G. Sveshnikova, N. B. Lubsandorzhiev, L. A. Kuzmichev, V. S. Ptuskin, E.G. Popova, Aleksey Zagorodnikov, V.A. Tabolenko, E. E. Korosteleva, N. N. Kalmykov, V. P. Sulakov, Yu. A. Semeney, C. Spiering, A. N. Dyachok, Y. Kazarina, N. M. Budnev, and L. V. Pankov

Subjects
010302 applied physics, Physics, Range (particle radiation), 010308 nuclear & particles physics, 0103 physical sciences, Hadron, Energy spectrum, Gamma ray, General Physics and Astronomy, Cosmic ray, Astrophysics, Mass composition, 01 natural sciences
Abstract

The Tunka-Grande array is part of an experimental complex located in the Tunka Valley (Republic of Buryatia, Russia) about 50 km from Lake Baikal. This complex also contains the Tunka-133 and Tunka-Rex arrays. The aim of this complex is to study the primary cosmic ray energy spectrum and mass composition in the energy range of 1016–1018 eV, and to search for diffuse gamma rays in the energy range of 5 × 1016–5 × 1017 eV. The design of the Tunka-Grande array and the procedure for reconstructing the parameters of extensive air showers (EASes) are described, and preliminary results are presented from the search for diffuse gamma rays with energies of more than 5 × 1016 eV.

Published
2019

23. Energy Spectra of Cosmic Ray Protons and Helium Nuclei in the NUCLEON Experiment

Author

D. Podorozhny, E. V. Atkin, D. Karmanov, Andrey Turundaevskiy, I. Kudryashov, V. Shumikhin, L. G. Tkachev, V. Bulatov, D. Polkov, M. Merkin, A. V. Tkachenko, S. Filippov, O. Vasiliev, N. V. Gorbunov, Alexander D. Panov, V. G. Dorokhov, A. Kurganov, L. G. Sveshnikova, Victor Grebenyuk, A. A. Voronin, S. Porokhovoy, and I. Kovalev

Subjects
010302 applied physics, Physics, Range (particle radiation), Calorimeter (particle physics), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, Hadron, General Physics and Astronomy, chemistry.chemical_element, Cosmic ray, 01 natural sciences, Spectral line, Nuclear physics, chemistry, Ionization, 0103 physical sciences, Nuclear Experiment, Nucleon, Helium
Abstract

The main aims of the NUCLEON satellite experiment are direct measurement of the energy spectra of cosmic ray protons and nuclei in the 2–500 TeV range of energies by two different methods (an ionization calorimeter and the new Kinematic Lightweight Energy Meter (KLEM) technique). The energy spectra of protons and helium nuclei are presented, and their characteristics are discussed.

Published
2019

24. 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

25. The TAIGA-HiSCORE array prototype: Status and first results

Author

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

Subjects
010308 nuclear & particles physics, Observatory, 0103 physical sciences, Taiga, Gamma ray, General Physics and Astronomy, 010303 astronomy & astrophysics, 01 natural sciences, Geology, Remote sensing
Abstract

The design for the TAIGA-HiSCORE array, a part of the TAIGA Gamma Ray Observatory, is considered. The observatory is being constructed in the Tunka Valley, 50 km from Lake Baikal. Preliminary results obtained using the first 28 optical stations of the array are presented.

Published
2017

26. The NUCLEON experiment. Results of the first year of data acquisition

Author

O. Vasiliev, D. Podorozhny, A. Kurganov, M. Merkin, A. V. Tkachenko, E. V. Atkin, D. Karmanov, V. Shumikhin, I. Kudryashov, L. G. Sveshnikova, V. Bulatov, D. Polkov, A. A. Voronin, Andrey Turundaevskiy, S. Porokhovoy, S. Filippov, L. G. Tkachev, Alexander D. Panov, V. G. Dorokhov, I. Kovalev, Victor Grebenyuk, and N. V. Gorbunov

Subjects
Physics, 010504 meteorology & atmospheric sciences, Payload, Nuclear Theory, Mode (statistics), Astronomy and Astrophysics, Cosmic ray, 01 natural sciences, Spectral line, Nuclear physics, Space experiment, Data acquisition, 0103 physical sciences, Satellite, Nucleon, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences
Abstract

The NUCLEON experiment aims to study chemical composition and energy spectra of galactic cosmic rays for nuclei charges Z = 1 − 30 and energies 10 11 − 10 15 eV. The research is conducted with the help of the NUCLEON scientific equipment installed on the Russian satellite “Resurs-P” No. 2 as an additional payload. This article describes the results of the first year of the space experiment NUCLEON, including methodological features of data acquisition mode setup, evaluation of the equipment’s performance and methods it provides, as well as preliminary results of data analysis.

Published
2017

27. 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

28. Primary gamma ray selection technique in the joint operation of Imaging Atmospheric Cherenkov Telescopes (IACTs) and wide-angle Cherenkov timing detectors

Author

L. G. Sveshnikova, L. G. Tkachev, L. A. Kuzmichev, Evgeny Postnikov, and A. A. Grinyuk

Subjects
Physics, business.industry, Cherenkov detector, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, General Physics and Astronomy, IACT, law.invention, Telescope, Optics, Primary (astronomy), law, business, Cherenkov radiation, Energy (signal processing)
Abstract

A combined approach to distinguishing extensive atmospheric showers (EASes) from gamma rays, based on analyzing Imaging Atmospheric Cherenkov Telescope (IACT) images and shower parameters reconstructed using data from a nonimaging (timing) array, is investigated. The study is conducted with simulated data on the registration of Cherenkov radiation from an EAS. The optimum set of combined parameters, the efficiency of the multivariate approach, and the dependence of the background suppression factor on energy and distance are determined. The findings are compared to those from the operation of an isolated IACT. It is shown that in the >50 TeV range of energies, the background can be suppressed by a factor of 100 even at distances of up to 450 m from an IACT telescope.

Published
2017

29. The Tunka-Grande experiment: Status and prospects

Author

N. M. Budnev, R. D. Monkhoev, T. I. Gress, S. Kiryuhin, Aleksandr Gafarov, Evgeny Postnikov, Y. Kazarina, A. A. Silaev, C. Spiering, E. A. Osipova, D. M. Voronin, Yu. A. Fomin, A. N. Dyachok, A. Chiavassa, V. Prosin, V. V. Lenok, Bayarto Lubsandorzhiev, N. B. Lubsandorzhiev, Aleksey Zagorodnikov, V.A. Tabolenko, O. G. Grishin, L. G. Sveshnikova, V. S. Ptuskin, A. Pushnin, Valery Zurbanov, A. V. Skurikhin, E.G. Popova, V. Samoliga, E. E. Korosteleva, A. Pakhorukov, V. P. Sulakov, O. A. Gress, Yu. A. Semeney, A. Ivanova, V. A. Kozhin, R. R. Mirgazov, Oleg Fedorov, V. A. Poleschuk, L. A. Kuzmichev, S. N. Epimakhov, Dmitry Zhurov, N. N. Kalmykov, L. V. Pankov, R. Mirzoyan, and Mikhail Panasyuk

Subjects
Physics, Scintillation, Range (particle radiation), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, General Physics and Astronomy, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, 01 natural sciences, Charged particle, Nuclear physics, 0103 physical sciences, Scintillation counter, 010306 general physics, Cherenkov radiation, Radio wave
Abstract

The Tunka-Grande scintillation array is described. The first results from its operation are presented. The prospects for studying primary cosmic rays in the energy range of 1016 to 1018 eV during simultaneous registration of the Cherenkov and charged particle components along with radio emissions from extensive air showers are discussed.

Published
2017

30. 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

31. 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

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

Author

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

Subjects
Physics, Nuclear and High Energy Physics, High energy, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, 7. Clean energy, 01 natural sciences, Observatory, Hybrid array, 0103 physical sciences, 010306 general physics, Instrumentation, Cherenkov radiation
Abstract

The combination of a wide angle timing Cherenkov array and Imaging Atmospheric Cherenkov Telescopes operated in mono mode offers a cost-effective way to construct a few square kilometers array for ultrahigh-energy gamma astronomy. The first stage of the TAIGA Observatory (Tunka Advanced Instrument for cosmic ray physics and Gamma Astronomy) is described here. It will comprise TAIGA-HiSCORE - 120 wide angle Cherenkov stations distributed over an area of 1.0 km2 and three IACTs (TAIGA-IACT).

Published
2020

33. 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

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

Author

S. F. Berezhnev, N. M. Budnev, M. Büker, M. Brückner, R. Wischnewski, A. V. Gafarov, O. A. Gress, T. Gress, A. N. Dyachok, S. N. Epimakhov, A. V. Zagorodnikov, V. L. Zurbanov, N. N. Kalmykov, N. I. Karpov, E. N. Konstantinov, E. E. Korosteleva, V. A. Kozhin, M. Kunnas, L. A. Kuzmichev, A. Chiavassa, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, R. R. Mirgazov, R. D. Monkhoev, R. Nachtigall, A. L. Pakhorukov, M. I. Panasyuk, L. V. Pankov, A. Porelli, V. A. Poleshchuk, E. G. Popova, V. V. Prosin, V. S. Ptuskin, M. Rueger, G. I. Rubtsov, Yu. A. Semeney, A. A. Silaev, A. V. Skurikhin, L. G. Sveshnikova, M. Tluczykont, D. Hampf, D. Horns, and O. A. Chvalaev

Subjects
Physics, Data processing, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, General Physics and Astronomy, Astronomy, Cosmic ray, Differential spectrum, Observatory, Angle of arrival, Cherenkov radiation, Energy (signal processing), Remote sensing
Abstract

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 × 1014 to 2 × 1016 eV is presented and compared to the available data.

Published
2015

35. Energy spectrum and mass composition of cosmic rays, by the data of the Tunka-133 array

Author

S. F. Berezhnev, N. M. Budnev, O. A. Gress, A. N. Dyachok, S. N. Epimakhov, A. V. Zagorodnikov, N. N. Kalmykov, N. I. Karpov, V. A. Kozhin, E. N. Konstantinov, A. V. Korobchenko, E. E. Korosteleva, L. A. Kuzmichev, A. Chiavassa, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, R. R. Mirgazov, R. D. Monkhoev, E. A. Osipova, M. I. Panasyuk, L. V. Pankov, A. L. Pakhorukov, E. G. Popova, V. V. Prosin, V. S. Ptuskin, L. G. Sveshnikova, Yu. A. Semeney, A. A. Silaev, A. V. Skurikhin, O. A. Chvalaev, C. Spiering, and I. V. Yashin

Subjects
Core (optical fiber), Physics, Range (particle radiation), Air shower, Primary energy, General Physics and Astronomy, Direction of arrival, Cosmic ray, Astrophysics, Energy (signal processing), Cherenkov radiation, Computational physics
Abstract

The Tunka-133 Cherenkov light array for the detection of extensive air showers (EAS) acquires data over the five winters from 2009 to 2014. The direction of arrival, the shower core coordinates on the plane of observation, the primary energy, and the depth of the shower maximum are reconstructed for each EAS. A differential all-particle energy spectrum is obtained in the energy range of 6 × 1015–3 × 1018 eV over 1540 h, along with the energy dependence of the average depth of the shower maximum in the range of 6 × 1016–3 × 1018 eV. Based on this dependence, the variation in the average composition of the primary cosmic rays is estimated as a function of energy.

Published
2015

36. The NUCLEON space experiment for direct high energy cosmic rays investigation in TeV–PeV energy range

Author

V. M. Grebenyuk, V. G. Dorokhov, E. V. Atkin, D. Karmanov, I. Kudryashov, I. Kovalev, D. Polkov, A. V. Tkachenko, O. Vasiliev, L. G. Sveshnikova, N. V. Gorbunov, M. Merkin, A. A. Voronin, Andrey Turundaevskiy, S. Filippov, V. Bulatov, S. Porokhovoy, D. Podorozhny, L. G. Tkachev, A. Pakhomov, and V. Shumikhin

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), Calorimeter (particle physics), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Electron, Spectral line, Nuclear physics, Ultra-high-energy cosmic ray, Nucleon, Instrumentation, Beam (structure), Energy (signal processing)
Abstract

The NUCLEON satellite experiment is designed to investigate directly, above the atmosphere, the energy spectra of cosmic-ray nuclei and the chemical composition from 100 GeV to 1000 TeV as well as the cosmic-ray electron spectrum from 20 GeV to 3 TeV. NUCLEON is planned to be launched in 2014. This mission is aimed at clarifying the essential details of cosmic-ray origin in this energy interval: number and types of sources, identification of actual nearby sources, and the investigation of the mechanisms responsible for the knee. Specific features of the NUCLEON instrument are relatively small thickness and small weight. A special method of energy determination by the silicon tracker was developed for this case. In this paper we describe a design of the instrument and the results of accelerator beam tests in terms of charge and energy resolution. The overall evidences of the capability of the apparatus to achieve the declared aims are also presented.

Published
2015

37. The HiSCORE Project

Author

M. Brückner, Martin Tluczykont, L. G. Sveshnikova, Petr Satunin, S. Epimakhov, Grigory Rubtsov, N. N. Kalmykov, A. L. Pakhorukov, Bayarto Lubsandorzhiev, E. E. Korosteleva, V. S. Ptuskin, V. Kozin, V. V. Prosin, V. Zirakashvili, R. D. Monkhoev, V. A. Poleschuk, M. Kunnas, R. R. Mirgazov, A. N. Dyachok, Mikhail Panasyuk, O. A. Gress, Yu. Semeney, E. N. Konstantinov, A. Skukhin, N. M. Budnev, D. Hampf, Aleksey Zagorodnikov, A. Ivanova, O. Chvalaev, A. Porelli, D. Spitschan, R. Nachtigall, Dieter Horns, Ralf Wischnewski, and L. A. Kuzmichev

Subjects
Astroparticle physics, Physics, COSMIC cancer database, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Air shower, lcsh:TA1-2040, General Earth and Planetary Sciences, lcsh:Engineering (General). Civil engineering (General), General Environmental Science
Abstract

A central question of Astroparticle Physics, the origin of cosmic rays, still remains unsolved. HiSCORE (Hundred*i Square-km Cosmic ORigin Explorer) is a concept for a large-area wide-angle non-imaging air shower detector, addressing this question by searching for cosmic ray pevatrons in the energy range from 10TeV to few PeV and cosmic rays in the energy range above 100TeV. In the framework of the Tunka-HiSCORE project, first prototypes have been deployed on the site of the Tunka-133 experiment, where we plan to install an engineering array covering an area of the order of 1km2. On the same site, also imaging and particle detectors are planned, potentially allowing a future hybrid detector system. Here we present the HiSCORE detector principle, its potential for cosmic ray origin search and the status of ongoing activities in the framework of the Tunka-HiSCORE experiment.

Published
2014

38. 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

39. The NUCLEON Space Experiment - Preliminary Results

Author

Alexander D. Panov, M. Merkin, I. Kovalev, V. G. Dorokhov, V. Bulatov, S. Porokhovoy, L. G. Sveshnikova, Victor Grebenyuk, D. Polkov, V. Shumikhin, L. G. Tkachev, M. Torochkov, I. Kudryashov, N. V. Gorbunov, A. A. Voronin, D. Karmanov, A. Pakhomov, E. V. Atkin, A. V. Tkachenko, D. Podorozhny, Andrey Turundaevskiy, O. Vasiliev, and S. Filippov

Subjects
Physics, Nuclear physics, Space experiment, Range (particle radiation), Astrophysics::High Energy Astrophysical Phenomena, Satellite, Charge (physics), Nucleon, Spectral line, Energy (signal processing)
Abstract

The NUCLEON satellite experiment is designed to investigate directly the energy spectra of cosmic-ray nuclei and the chemical composition (Z=1−30) at energy range 100 GeV–1000 TeV. The satellite has been launched in 26 December 2014. The planned exposition time is more than 5 years. The first preliminary results are presented including charge distributions and all particles energy spectra

Published
2017

40. Background rejection method for tens of TeV gamma-ray astronomy applicable to wide angle timing arrays

Author

L. G. Sveshnikova, A. Sh. M. Elshoukrofy, and Evgeny Postnikov

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, History, High energy, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Detector, FOS: Physical sciences, Gamma-ray astronomy, Electromagnetic radiation, Particle detector, Computer Science Applications, Education, 85-06, Distribution function, Optics, Physics - Data Analysis, Statistics and Probability, Measuring instrument, business, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM), Data Analysis, Statistics and Probability (physics.data-an), Cherenkov radiation
Abstract

A 'knee-like' approximation of Cherenkov light Lateral Distribution Functions, which we developed earlier, now is used for the actual tasks of background rejection methods for high energy (tens and hundreds of TeV) gamma-ray astronomy. In this work we implement this technique to the HiSCORE wide angle timing array consisting of Cherenkov light detectors with spacing of 100 m covering 0.2 km$^2$ presently and up to 5 km$^2$ in future. However, it can be applied to other similar arrays. We also show that the application of a multivariable approach (where 3 parameters of the knee-like approximation are used) allows us to reach a high level of background rejection, but it strongly depends on the number of hit detectors., 5 pages, 3 figures; proceedings of the 2nd International Conference on Particle Physics and Astrophysics (ICPPA-2016)

Published
2017

41. Parametric analysis of Cherenkov light LDF from EAS in the range 30-3000 TeV for primary gamma rays and nuclei

Author

Evgeny Postnikov, A. Sh. M. Elshoukrofy, Hussein A. Motaweh, L. G. Sveshnikova, and E. E. Korosteleva

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Range (particle radiation), Proton, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, General Physics and Astronomy, Cosmic ray, 01 natural sciences, Computational physics, Distribution function, 85-08, Physics - Data Analysis, Statistics and Probability, 0103 physical sciences, 010306 general physics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM), Data Analysis, Statistics and Probability (physics.data-an), Energy (signal processing), Cherenkov radiation
Abstract

A simple 'knee-like' approximation of the Lateral Distribution Function (LDF) of Cherenkov light emitted by EAS (extensive air showers) in the atmosphere is proposed for solving various tasks of data analysis in HiSCORE and other wide angle ground-based experiments designed to detect gamma rays and cosmic rays with the energy above tens of TeV. Simulation-based parametric analysis of individual LDF curves revealed that on the radial distance 20-500 m the 5-parameter 'knee-like' approximation fits individual LDFs as well as the mean LDF with a very good accuracy. In this paper we demonstrate the efficiency and flexibility of the 'knee-like' LDF approximation for various primary particles and shower parameters and the advantages of its application to suppressing proton background and selecting primary gamma rays., 7 pages, 1 table, 2 figures; Bulletin of the Russian Academy of Sciences: Physics, 81, 4 (2017), in press

Published
2017

42. Preliminary results of the cosmic ray study in the NUCLEON space experiment

Author

L. G. Sveshnikova, S. Porokhovoy, D. Polkov, V. Shumikhin, E. V. Atkin, M. Merkin, A. Sadovsky, V. Bulatov, Alexander D. Panov, A. Pakhomov, A. A. Voronin, I. Kudryashov, N. Gorbunov, Victor Grebenyuk, D. Karmanov, V. G. Dorokhov, M. Torochkov, Andrey Turundaevskiy, I. Kovalev, L. Tkachev, A. Tkachenko, O. Vasiliev, D. Podorozhny, and S. Filippov

Subjects
Nuclear physics, Physics, Space experiment, Cosmic ray, Nucleon
Published
2017

43. Primary gamma ray selection in a hybrid timing/imaging Cherenkov array

Author

L. G. Sveshnikova, Evgeny Postnikov, A. Grinyuk, and L. A. Kuzmichev

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, business.industry, Astrophysics::High Energy Astrophysical Phenomena, QC1-999, Gamma ray, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Cosmic ray, Set (abstract data type), 85-06, Optics, Orders of magnitude (time), Physics - Data Analysis, Statistics and Probability, Hybrid array, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, business, Instrumentation and Methods for Astrophysics (astro-ph.IM), Data Analysis, Statistics and Probability (physics.data-an), Energy (signal processing), Selection (genetic algorithm), Cherenkov radiation
Abstract

This work is a methodical study on hybrid reconstruction techniques for hybrid imaging/timing Cherenkov observations. This type of hybrid array is to be realized at the gamma-observatory TAIGA intended for very high energy gamma-ray astronomy (>30 TeV). It aims at combining the cost-effective timing-array technique with imaging telescopes. Hybrid operation of both of these techniques can lead to a relatively cheap way of development of a large area array. The joint approach of gamma event selection was investigated on both types of simulated data: the image parameters from the telescopes, and the shower parameters reconstructed from the timing array. The optimal set of imaging parameters and shower parameters to be combined is revealed. The cosmic ray background suppression factor depending on distance and energy is calculated. The optimal selection technique leads to cosmic ray background suppression of about 2 orders of magnitude on distances up to 450 m for energies greater than 50 TeV., 4 pages, 5 figures; proceedings of the 19th International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI 2016)

Published
2017

44. Hybrid method for identifying mass groups of primary cosmic rays in the joint operation of IACTs and wide angle Cherenkov timing arrays

Author

Evgeny Postnikov, A. Grinyuk, L. A. Kuzmichev, and L. G. Sveshnikova

Subjects
History, Astrophysics::High Energy Astrophysical Phenomena, Hadron, FOS: Physical sciences, IACT, Cosmic ray, 01 natural sciences, Education, Primary (astronomy), 0103 physical sciences, Range (statistics), 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Cherenkov radiation, Physics, High Energy Astrophysical Phenomena (astro-ph.HE), 010308 nuclear & particles physics, Computer Science Applications, Computational physics, Core (optical fiber), 85-06, Physics - Data Analysis, Statistics and Probability, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Energy (signal processing), Data Analysis, Statistics and Probability (physics.data-an)
Abstract

This work is a methodical study of another option of the hybrid method originally aimed at gamma/hadron separation in the TAIGA experiment. In the present paper this technique was performed to distinguish between different mass groups of cosmic rays in the energy range 200 TeV - 500 TeV. The study was based on simulation data of TAIGA prototype and included analysis of geometrical form of images produced by different nuclei in the IACT simulation as well as shower core parameters reconstructed using timing array simulation. We show that the hybrid method can be sufficiently effective to precisely distinguish between mass groups of cosmic rays., Comment: 6 pages, 3 figures; proceedings of the 2nd International Conference on Particle Physics and Astrophysics (ICPPA-2016)

Published
2017
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45. Interpretation of cosmic ray spectrum above the knee measured by the Tunka-133 array

Author

L. A. Kuzmichev, Vasiliy Prosin, V. S. Ptuskin, E. E. Korosteleva, and L. G. Sveshnikova

Subjects
Physics, Nuclear and High Energy Physics, Spectrum (functional analysis), Energy spectrum, Mass spectrum, Cosmic ray, Astrophysics, Mass composition, Atomic and Molecular Physics, and Optics, Galaxy, Interpretation (model theory)
Abstract

A probable interpretation of the fine structure of all particle energy spectrum between the knee and the ankle (the sharp first knee at 3–4 PeV, the spectrum hardening at 20–30 PeV, the second knee at 200–300 PeV) as well as a ln ⁡ A > (E) dependence measured recently by the Tunka-133 experiment, is presented. We show that these features are compatible with the combined model where cosmic rays around the knee are produced by the group of dedicated sources and the extragalactic light component appears in the energy region of 1016– 10 17 eV and reaches about 50% of all particles around (2–3) × 10 17 eV .

Published
2014

46. First results of the tracking system calibration of the TAIGA-IACT telescope

Author

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

Subjects
Physics, Rotary encoder, History, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Astrophysics::Instrumentation and Methods for Astrophysics, IACT, Tracking system, Cosmic ray, Computer Science Applications, Education, law.invention, Telescope, Observatory, Sky, law, Astrophysics::Solar and Stellar Astrophysics, business, Astrophysics::Galaxy Astrophysics, Cherenkov radiation, Remote sensing, media_common
Abstract

In TAIGA Observatory (Tunka Advanced Instrument for cosmic ray physics and Gamma-ray Astronomy) we are commissioning the first Imaging Atmospheric Cherenkov Telescope (IACT). The telescope has an alt-azimuth mount and 17-bit shaft encoder for each axis, stepper motors are used for axis control. For the pointing calibration of the telescope a CCD-camera is installed on the dish of the telescope and its position allows to capture simultaneously both the Cherenkov camera with LEDs and the sky with observed source. Since October 2017, the telescope has been operating in tracking mode. In this work the TAIGAIACT telescope pointing calibration approach and first results of the tracking operations are described.

Published
2019

47. Studying the Possibility of Separation of Primary Nuclei Groups in the Energy Interval 300 TeV – 10 PeV in the TAIGA-HiSCORE Experiment

Author

L. G. Sveshnikova, Evgeny Postnikov, E. E. Korosteleva, A. Sh. M. Elshoukrofy, and Hussein A. Motaweh

Subjects
Physics, History, Range (particle radiation), Astrophysics::High Energy Astrophysical Phenomena, Flux, Function (mathematics), Computer Science Applications, Education, Atmosphere, Nuclear physics, Distribution (mathematics), Primary (astronomy), Energy (signal processing), Cherenkov radiation
Abstract

We proposed a method of discrimination between light (p+He) and heavy (C+Fe) groups of primary nuclei. It's based on parametric analysis of lateral distribution of Cherenkov light in the atmosphere with approximation by the 'knee-like' fitting function, proposed and studied earlier. Two parameters most sensitive to the depth of shower maximum were revealed and used for analysis of the bulk of experimental data obtained in the TAIGA-HiSCORE experiment in the energy range 300–3000 TeV for various incident angles of particles. It is shown that the method allows estimating the contribution of light and heavy groups of primary nuclei. In the interval 300–3000 TeV we do not see a rapid decrease of the light component flux, as it was seen in the ARGO-YBJ experiment. This result will be refined after a more detailed analysis.

Published
2019

48. Spectrum and anisotropy of cosmic rays at TeV–PeV-energies and contribution of nearby sources

Author

V. S. Ptuskin, O. N. Strelnikova, and L. G. Sveshnikova

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Spectral line, Interstellar medium, Dipole, Supernova, Amplitude, Ultra-high-energy cosmic ray, Astrophysics - High Energy Astrophysical Phenomena, Anisotropy, Astrophysics::Galaxy Astrophysics
Abstract

The role of nearby galactic sources, the supernova remnants, in formation of observed energy spectrum and anisotropy of high-energy cosmic rays is studied. The list of these sources is made up based on radio, X-ray and gamma-ray catalogues. The distant sources are treated statistically as ensemble of sources with random positions and ages. The source spectra are defined based on the modern theory of cosmic ray acceleration in supernova remnants while the propagation of cosmic rays in the interstellar medium is described in the frameworks of galactic diffusion model. Calculations of anisotropy are made to reproduce the experimental procedure of getting the two-dimensional anisotropy. The detailed comparison of calculations with cosmic ray data is made. We explained simultaneously the new cosmic ray data on a fine structure of all particle spectra around the knee and the amplitude and direction of the dipole component of anisotropy in the wide energy range 1 TeV - 1 EeV. Made assumptions do not look exotic, and they confirm the modern understanding of cosmic ray origin., Comment: 26 pages, 7 double figures

Published
2013

49. Investigation of primary cosmic rays at the Moon’s surface

Author

A. P. Chubenko, L. G. Sveshnikova, D. M. Podorozhniy, O. A. Vasilyev, Andrey Turundaevskiy, N. N. Kalmykov, Alexander A. Konstantinov, L. G. Tkachev, and R.A. Muhamedshin

Subjects
Physics, Cosmic ray spallation, Nuclear and High Energy Physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, Cosmic ray, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, Radiation, Electromagnetic radiation, Regolith, Atomic and Molecular Physics, and Optics, Primary (astronomy), Physics::Space Physics, Neutron, Astrophysics::Earth and Planetary Astrophysics
Abstract

The possibility of experimentally studying primary cosmic rays at the Moon’s surface is considered. A mathematical simulations of showers initiated in the lunar regolith by high-energy particles of primary cosmic rays is performed. It is shown that such particles can in principle be recorded by simultaneously detecting three components of backscattered radiation (secondary neutrons, gamma rays, and radio emission).

Published
2013

50. The Primary CR Spectrum by the Data of the Tunka-133 Array

Author

S. F. Berezhnev, N. M. Budnev, A. Chiavassa, O. A. Chvalaev, O. A. Gress, T. I. Gress, A. N. Dyachok, S. N. Epimakhov, N. I. Karpov, N. N. Kalmykov, E. N. Konstantinov, A. V. Korobchenko, E. E. Korosteleva, V. A. Kozhin, L. A. Kuzmichev, B. K. Lubsandorzhiev, N. B. Lubsandorzhiev, R. R. Mirgazov, R. D. Monkhoev, E. A. Osipova, A. L. Pakhorukov, M. I. Panasyuk, L. V. Pankov, E. G. Popova, V. V. Prosin, V. S. Ptuskin, Yu. A. Semeney, A. A. Silaev, A. V. Skurikhin, C. Spiering, L. G. Sveshnikova, and A. V. Zagorodnikov

Subjects
Physics, Data acquisition, Calibration (statistics), Primary (astronomy), Energy spectrum, Astronomy, Astrophysics, Spectrum (topology)
Published
2016

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