2020, Garmash, A., Pan, A., Silaev, A., Budnev, N., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

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

2022, Yashin, I. I., Astapov, I. I., Dmitrieva, A. N., Gvishiani, A. G., Getmanov, V. G., Kovylyaeva, A. A., Mishutina, Yu. N., Soloviev, A. A., Shutenko, V. V., Яшин, Игорь Иванович, Астапов, Иван Иванович, Дмитриева, Анна Николаевна, Мишутина, Юлия Николаевна, Шутенко, Виктор Викторович

Muon hodoscope URAGAN (MEPhI, Moscow) with an area of 45 sq. m is capable of real time detection of the tracks of all muons arriving from the upper celestial hemisphere with a high spatial and angular accuracy (1 cm and 1 degree, respectively). The measured angular distribution of the muons flux over a certain period of exposure time and expressed in R.M.S. deviations from an averaged reference matrix and corrected for barometric and temperature effects represents a matrix-muonograph (by analogy with X-ray radiography) of the Earth's atmosphere and near-terrestrial space. Such muonograph contains information on the current variation the flux of cosmic muons associated with modulation processes in the heliosphere, magnetosphere and atmosphere of the Earth. The sequence of muonographs converted to the GSE coordinate system allows one to study in real time the dynamics of cosmic ray anisotropy and to identify in advance geoeffective processes in the heliosphere associated with solar activity. Results of the analysis of the anisotropy of the cosmic ray muon flux at the minima of the 23rd (2009-2010) and 24th (2018-2019) solar cycles are discussed. © Copyright owned by the author(s).

2020, Budnev, N., Bezyazeekov, P., Bonvech, A., Borodin, A., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2020, Pleiades Publishing, Ltd.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 km2 is briefly described along with the lines of its development, and the first results obtained on this basis are given.

2021, Monkhoev, R., Ternovoy, M., Bezyazeekov, P., Borodin, A., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2021 Institute of Physics Publishing. All rights reserved.The Tunka-Grande array is part of a single experimental complex, which also includes the Tunka-133 and TAIGA-HiSCORE (High Sensitivity COsmic Rays and gamma Explorer) wide-angle Cherenkov arrays, TAIGA-IACT array (Imaging Atmospheric Cherenkov Telescope) and TAGA-MUON scintillation array. This complex is located in the Tunka Valley (Buryatia Republic, Russia), 50 km from Lake Baikal. It is designed to study the energy spectrum and the mass composition of charged cosmic rays in the energy range 100 TeV - 1000 PeV, to search for diffuse gamma rays above 100 TeV and to study local sources of gamma rays with energies above 30 TeV. This report outlines 3 key points. The first is the description of the Tunka-Grande scintillation array. The second one presents the computer simulation strategy of the Tunka Grande array based on the Geant4 software. The third one is devoted to the prospects for future research in the field of cosmic ray physics and gamma-ray astronomy using simulation results.

2023, Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Korosteleva, E., Kozhin, V., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

2019, Postnikov, E. B., Bezyazeekov, P. A., Boreyko, V. F., Borodin, A. N., Astapov, I. I., Kindin, V. V., Kokoulin, R. P., Kompaniets, K. G., Petrukhin, A. A., Postnikov, E. B., Yashin, I. I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2019, Allerton Press, Inc.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.

2024, Lagoida, I. A., Astapov, I. I., Kuzmenkova, P. S., Лагойда, Илья Алексеевич, Астапов, Иван Иванович, Кузьменкова, Полина Сергеевна

2021, Budnev, N., Bezyazeekov, P., Bonvech, E., Borodin, A., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2021, Pleiades Publishing, Ltd.Abstract: The physics motivations and advantages of the hybrid detector complex TAIGA are presented. TAIGA aims to address gamma-ray astronomy at energies from a few TeV to several PeV units, as well as cosmic-ray physics from 100 TeV to several EeV units and astroparticle physics problems. In 2021 deployment and commissioning of the one square kilometer TAIGA setup in the Tunka valley ∼50 km West from Lake Baikal will be finished. The first experimental results with the TAIGA are presented.

2025, Panov, A. D., Astapov, I. I., Kokoulin, R. P., Petrukhin, A. A., Yashin, I. I., Астапов, Иван Иванович, Кокоулин, Ростислав Павлович, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

2020, Chernov, D., Bezyazeekov, P., Bonvech, E., Borodin, A., Astapov, I., Kindin, V., Kokoulin, R., Kompaniets, K., Petrukhin, A., Yashin, I., Астапов, Иван Иванович, Киндин, Виктор Владимирович, Кокоулин, Ростислав Павлович, Компаниец, Константин Георгиевич, Петрухин, Анатолий Афанасьевич, Яшин, Игорь Иванович

© 2020 IOP Publishing Ltd and Sissa MedialabThe TAIGA complex-detector is designed to study gamma and cosmic rays in the energy range above 30 TeV. We are developing a novel wide-angle imaging air Cherenkov telescope with a SiPM based camera with a field of view of 15-20◦ and an aperture of around 1 m2. In this report we present the design of the telescope imaging camera (optical and data acquisition systems), based on 1000-1200 SiPMs. The prototype of such camera, based on 49 SiPMs, is operating at the TAIGA's site in the Tunka valley since September 2019. The design of the prototype and the preliminary results of data analysis is presented.