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1. Measuring muon tracks in Baikal-GVD using a fast reconstruction algorithm

Author: V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, R. Bannasch, Z. Bardačová, I. A. Belolaptikov, I. V. Borina, V. B. Brudanin, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dvornický, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, E. Eckerová, T. V. Elzhov, L. Fajt, S. V. Fialkovski, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, M. S. Katulin, K. G. Kebkal, O. G. Kebkal, E. V. Khramov, M. M. Kolbin, K. V. Konischev, K. A. Kopański, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, M. K. Kryukov, V. F. Kulepov, Pa. Malecki, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, W. Noga, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, A. P. Stromakov, E. O. Sushenok, O. V. Suvorova, V. A. Tabolenko, B. A. Tarashansky, Y. V. Yablokova, S. A. Yakovlev, and D. N. Zaborov
Subjects: Astrophysics, QB460-466, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract The Baikal Gigaton Volume Detector (Baikal-GVD) is a km $$^3$$ 3 -scale neutrino detector currently under construction in Lake Baikal, Russia. The detector consists of several thousand optical sensors arranged on vertical strings, with 36 sensors per string. The strings are grouped into clusters of 8 strings each. Each cluster can operate as a stand-alone neutrino detector. The detector layout is optimized for the measurement of astrophysical neutrinos with energies of $$\sim $$ ∼ 100 TeV and above. Events resulting from charged current interactions of muon (anti-)neutrinos will have a track-like topology in Baikal-GVD. A fast $$\chi ^2$$ χ 2 -based reconstruction algorithm has been developed to reconstruct such track-like events. The algorithm has been applied to data collected in 2019 from the first five operational clusters of Baikal-GVD, resulting in observations of both downgoing atmospheric muons and upgoing atmospheric neutrinos. This serves as an important milestone towards experimental validation of the Baikal-GVD design. The analysis is limited to single-cluster data, favoring nearly-vertical tracks.
Published: 2021
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2. 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
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3. 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
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4. Development of the Double Cascade Reconstruction Technique in the Baikal-GVD Neutrino Telescope

Author: Eliška Eckerová, V. A. Allakhverdyan, А. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, Zuzana Bardačová, I. A. Belolaptikov, I. V. Borina, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dvornický, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, T. V. Elzhov, L. Fajt, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, K. G. Kebkal, O. G. Kebkal, A. Khatun, E. V. Khramov, M. M. Kolbin, K. V. Konischev, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, V. F. Kulepov, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, D. Seitova, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, A. P. Stromakov, O. V. Suvorova, V. A. Tabolenko, Y. V. Yablokova, and D. N. Zaborov
Published: 2023
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5. The Baikal-GVD telescope follow-up analysis of the IceCube neutrino alerts

Author: Viktoriya Dik, O. V. Suvorova, V. A. Allakhverdyan, А. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, Z. Bardаčová, I. A. Belolaptikov, I. V. Borina, N. M. Budnev, G. V. Domogatsky, A. A. Doroshenko, R. Dvornický, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, Eliška Eckerová, T. V. Elzhov, L. Fajt, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, K. G. Kebkal, V. K. Kebkal, A. Khatun, E. V. Khramov, M. M. Kolbin, K. V. Konischev, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, V. F. Kulepov, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, D. Seitova, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, A. P. Stromakov, V. A. Tabolenko, Y. V. Yablokova, and D. N. Zaborov
Published: 2023
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6. Selection techniques of neutrino-induced cascades in the Baikal-GVD neutrino telescope

Author: Zuzana Bardačová, V. A. Allakhverdyan, А. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, I. A. Belolaptikov, I. V. Borina, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, A. N. Dyachok, Ratislav Dvornický, Zh.-A. M. Dzhilkibaev, Eliška Eckerová, T. V. Elzhov, L. Fajt, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, K. G. Kebkal, O. G. Kebkal, A. Khatun, E. V. Khramov, M. M. Kolbin, K. V. Konischev, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, V. F. Kulepov, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, D. Seitova, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, A. P. Stromakov, O. V. Suvorova, V. A. Tabolenko, Y. V. Yablokova, and D. N. Zaborov
Published: 2023
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7. Deep-Water Neutrino Telescope in Lake Baikal

Author: V. A. Allakhverdyan, A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, R. Bannasch, Z. Bardačová, I. A. Belolaptikov, I. V. Borina, V. B. Brudanin, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dvornický, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, E. Eckerová, T. V. Elzhov, L. Fajt, S. V. Fialkovsky, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, M. S. Katulin, K. G. Kebkal, O. G. Kebkal, E. V. Khramov, M. M. Kolbin, K. V. Konischev, K. A. Kopański, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, M. K. Kryukov, V. F. Kulepov, Pa. Malecki, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, W. Noga, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, A. P. Stromakov, E. O. Sushenok, O. V. Suvorova, V. A. Tabolenko, B. A. Taraschansky, Y. V. Yablokova, S. A. Yakovlev, and D. N. Zaborov
Subjects: Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics
Published: 2021
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8. 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
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9. High-Energy Neutrino Astronomy and the Baikal-GVD Neutrino Telescope

Author: A. D. Avrorin, A. V. Avrorin, V. M. Aynutdinov, R. Bannasch, Z. Bardáčová, I. A. Belolaptikov, V. Dik, V. B. Brudanin, N. M. Budnev, G. V. Domogatsky, A. A. Doroshenko, R. Dvornický, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, E. Eckerová, T. V. Elzhov, L. Fajt, S. V. Fialkovski, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, R. A. Ivanov, M. S. Katulin, K. G. Kebkal, O. G. Kebkal, E. V. Khramov, M. M. Kolbin, K. V. Konischev, K. A. Kopański, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, M. K. Kryukov, V. F. Kulepov, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, W. Noga, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, B. A. Shaybonov, M. D. Shelepov, F. Šimkovic, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, I. Štekl, E. O. Sushenok, O. V. Suvorova, V. A. Tabolenko, B. A. Tarashansky, Y. V. Yablokova, S. Yakovlev, and D. N. Zaborov
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Nuclear and High Energy Physics, High energy, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Northern Hemisphere, FOS: Physical sciences, Astronomy, Construction plan, Atomic and Molecular Physics, and Optics, Universe, Neutrino, Neutrino astronomy, Astrophysics - High Energy Astrophysical Phenomena, Effective volume, media_common
Abstract: Neutrino astronomy offers a novel view of the non-thermal Universe and is complementary to other astronomical disciplines. The field has seen rapid progress in recent years, including the first detection of astrophysical neutrinos in the TeV-PeV energy range by IceCube and the first identified extragalactic neutrino source (TXS 0506+056). Further discoveries are aimed for with new cubic-kilometer telescopes in the Northern Hemisphere: Baikal-GVD, in Lake Baikal, and KM3NeT-ARCA, in the Mediterranean sea. The construction of Baikal-GVD proceeds as planned; the detector currently includes over 2000 optical modules arranged on 56 strings, providing an effective volume of 0.35 km$^3$. We review the scientific case for Baikal-GVD, the construction plan, and first results from the partially built array., 9 pages, 5 figures, to be published in Proceedings of the 5-th International Conference on Particle Physics and Astrophysics (ICPPA-2020), October 5-9, 2020
Published: 2021
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10. 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
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11. 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
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12. High-Energy Neutrino Follow-up at the Baikal-GVD Neutrino Telescope

Author: Z. Bardačová, T. I. Gress, M. S. Katulin, K. V. Konishchev, K.V. Golubkov, Lukas Fajt, Mark Shelepov, E. V. Ryabov, A. V. Skurikhin, M.M. Kolbin, W. Noga, B. A. Tarashchansky, V. A. Kozhin, D. N. Zaborov, A.P. Koshechkin, T. V. Elzhov, V. Ya. Dik, G.B. Safronov, A.V. Avrorin, Aleksandr Gafarov, E.N. Pliskovsky, O.G. Kebkal, V.D. Rushay, M.I. Rozanov, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, R. R. Mirgazov, A.G. Solovjev, V. Nazari, V. B. Brudanin, V.F. Kulepov, N. M. Budnev, S. V. Fialkovski, E.V. Khramov, Fedor Šimkovic, D. P. Petukhov, V. M. Aynutdinov, Yu. V. Yablokova, Sergey Yakovlev, K. A. Kopański, N.S. Gorshkov, R. Bannasch, E. O. Sushenok, R. Dvornicky, A.V. Korobchenko, I. A. Belolaptikov, Konstantin Kebkal, I. Stekl, R. Ivanov, V.A. Tabolenko, Dmitry V. Naumov, A.D. Avrorin, G.V. Domogatsky, B.A. Shaybonov, A. N. Dyachok, E. Eckerová, Olga Suvorova, M.K. Kryukov, M. V. Milenin, M.N. Sorokovikov, and M.V. Kruglov
Subjects: Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Detector, Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Astronomy and Astrophysics, 01 natural sciences, Monitoring program, law.invention, Telescope, Data acquisition, Space and Planetary Science, law, 0103 physical sciences, Neutrino, Underwater, 010303 astronomy & astrophysics, Event reconstruction
Abstract: The Baikal-GVD deep underwater neutrino experiment participates in the international multi-messenger program to detect the astrophysical sources of high- and ultrahigh-energy cosmic-ray particles, being at the stage of array deployment and a step-by-step increase of the telescope’s effective volume to the scale of a cubic kilometer. At present, the telescope consists of seven clusters containing 2016 photodetectors. The effective volume of the detector has reached 0.35 km $${}^{3}$$ for the selection of shower events from neutrino interactions in Baikal water. The experimental data have been accumulated in a continuous exposure mode since 2015, allowing a prompt data analysis and a celestial-sphere monitoring program to be implemented in real time. We discuss the structure of the data acquisition system, describe the physical event reconstruction procedure in the mode of fast response to alerts, and present the results of our analysis of nine alerts from the polar IceCube telescope from early September to late October 2020.
Published: 2021
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13. 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
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14. 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
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15. Method and device for tests of the laser optical calibration system for the Baikal-GVD underwater neutrino Cherenkov telescope

Author: Konrad Kopański, Wojciech Noga, Paweł Malecki, V. A. Allakhverdyan, A. V. Avrorin, V. M. Aynutdinov, R. Bannasch, Zuzana Bardačová, I. A. Belolaptikov, I. V. Borina, V. Brudanin, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, Rastislav Dvornicky, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, Eliška Eckerová, T. V. Elzhov, L. Fajt, Stanislav Vasilevich Fialkovsky, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, M. S. Katulin, K. G. Kebkal, O. G. Kebkal, E. V. Khramov, M. M. Kolbin, K. V. Konischev, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, M. K. Kryukov, V. F. Kulepov, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, V. Nazari, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, B. A. Shaybonov, M. D. Shelepov, Fedor Šimkovic, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, Ivan Štekl, A. P. Stromakov, E. O. Sushenok, O. V. Suvorova, V. A. Tabolenko, B. Tarashansky, Y. V. Yablokova, S. Yakovlev, and D. N. Zaborov
Published: 2022
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16. 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
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17. Gamma/Hadron Separation for a Ground Based IACT in Experiment TAIGA Using Machine Learning Methods

Author: Maria Vasyutina, L. Sveshnikova, 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, Dieter 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, L. A. Kuzmichev, 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, L. A. Panasenko, 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 𝑗, A. Razumov, E. Rjabov, G. I. Rubtsov, Y. I. Sagan, V. S. Samoliga, Andrei Sidorenkov, A. A. Silaev, A. A. Silaev jr, A. V. Skurikhin, M. Slunecka, A. V. Sokolov, Y. Suvorkin, 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: Computer science, Hadron, Taiga, Separation (aeronautics), IACT, Random forest, Remote sensing
Published: 2021
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18. 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
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19. 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
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20. 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
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21. 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
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22. Neutrino Telescope in Lake Baikal: Present and Nearest Future

Author: M.B. Milenin, Ivan Štekl, V. Y. Dik, I. A. Belolaptikov, V. A. Kozhin, V.D. Rushay, V. Nazari, Mark Shelepov, V. B. Brudanin, V.F. Kulepov, I. V. Borina, D. N. Zaborov, O.G. Kebkal, A. P. Stromakov, M.I. Rozanov, A.P. Koshechkin, B.A. Tarashansky, Yury Malyshkin, A. E. Sirenko, A. A. Doroshenko, A.G. Solovjev, Zh.-A.M. Dzhilkibaev, Z. Bardаčová, Aleksandr Gafarov, K.V. Golubkov, M.V. Kruglov, А. D. Avrorin, K.V. Konischev, Pa. Malecki, B.A. Shaybonov, Evgeniy Khramov, A. V. Skurikhin, M.N. Sorokovikov, T. V. Elzhov, A. N. Dyachok, V.A. Tabolenko, Konstantin Kebkal, W. Noga, T. I. Gress, Lukas Fajt, G.B. Safronov, A.V. Korobchenko, R. R. Mirgazov, E. V. Ryabov, Rastislav Dvornický, N. M. Budnev, E. Eckerová, M.M. Kolbin, A.V. Avrorin, E.N. Pliskovsky, Olga Suvorova, D. P. Petukhov, G.V. Domogatsky, M. S. Katulin, V. M. Aynutdinov, K. A. Kopański, Sergey Yakovlev, M.K. Kryukov, Dmitry V. Naumov, V. A. Allakhverdyan, Fedor Šimkovic, N.S. Gorshkov, Y. V. Yablokova, R. Bannasch, S.V. Fialkovsky, and E. O. Sushenok
Subjects: Physics, Neutrino telescope, Astronomy
Published: 2021
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23. 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
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24. Positioning system for Baikal-GVD

Author: A. A. Doroshenko, K.V. Konischev, Zh.-A.M. Dzhilkibaev, N.S. Gorshkov, Dmitry V. Naumov, B.A. Shaybonov, M.B. Milenin, D. N. Zaborov, Fedor Šimkovic, A.P. Koshechkin, A. E. Sirenko, A. P. Stromakov, A. N. Dyachok, Y. V. Yablokova, G.B. Safronov, A. V. Skurikhin, N. M. Budnev, Rastislav Dvornický, Evgeniy Khramov, I. A. Belolaptikov, R. R. Mirgazov, A.V. Avrorin, V.D. Rushay, B.A. Tarashansky, D. P. Petukhov, Konstantin Kebkal, W. Noga, V. A. Kozhin, V. A. Allakhverdyan, K. A. Kopański, Yury Malyshkin, E. Eckerová, V. Nazari, Olga Suvorova, V. Y. Dik, E.N. Pliskovsky, Mark Shelepov, O.G. Kebkal, M.I. Rozanov, I. V. Borina, M.V. Kruglov, S.V. Fialkovski, R. Bannasch, E. O. Sushenok, A.G. Solovjev, Pa. Malecki, I. Stekl, M.K. Kryukov, V.A. Tabolenko, T. I. Gress, Lukas Fajt, K.V. Golubkov, E. V. Ryabov, M.M. Kolbin, M.N. Sorokovikov, T. V. Elzhov, V. M. Aynutdinov, Sergey Yakovlev, A.V. Korobchenko, A.D. Avrorin, G.V. Domogatsky, V. B. Brudanin, V.F. Kulepov, Aleksandr Gafarov, M. S. Katulin, and Z. Bardačová
Subjects: Photomultiplier, Physics - Instrumentation and Detectors, Positioning system, Neutrino telescope, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), law.invention, Telescope, Upgrade, law, Acoustic modem, Polling, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM), Trilateration, Geology, Remote sensing
Abstract: Baikal-GVD is a kilometer scale neutrino telescope currently under construction in Lake Baikal. Due to water currents in Lake Baikal, individual photomultiplier housings are mobile and can drift away from their initial position. In order to accurately determine the coordinates of the photomultipliers, the telescope is equipped with an acoustic positioning system. The system consists of a network of acoustic modems, installed along the telescope strings and uses acoustic trilateration to determine the coordinates of individual modems. This contribution discusses the current state of the positioning in Baikal-GVD, including the recent upgrade to the acoustic modem polling algorithm., Presented at 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021
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25. Search for nanosecond-fast optical transients with TAIGA-HiSCORE array

Author: Alexander Panov, I. Astapov, A. Awad, G. M. Beskin, Pavel Bezyazeekov, M. Blank, E. A. Bonvech, A. Borodin, M. Brückner, N. M. Budnev, A. Bulan, D. V. Chernov, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. A. Kozhin, E. Kravchenko, A. A. Krivopalova, L. Kuzmichev, Alexander Kryukov, A. Lagutin, M. Lavrova, Yu. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, L. A. Panasenko, A. Pan, L. Pankov, A. Petrukhin, D. A. Podgrudkov, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, E. Rjabov, G. Rubtsov, Y. Sagan, V. Samoliga, Andrei Sidorenkov, A. Silaev, A. A. Silaev (junior), A. V. Skurikhin, M. Slunecka, A. V. Sokolov, Y. Suvorkin, L. G. Sveshikova, V. A. Tabolenko, A. Tanaev, B. Tarashansky, M. Ternovoy, L. Tkachev, M. Tluczykont, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, R. Wischnewski, I. Yashin, A. Zagorodnikov, and D. Zhurov
Published: 2021
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26. 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
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27. Automatic data processing for Baikal-GVD neutrino observatory

Author: Bair Shaybonov, R. Bannasch, Rastislav Dvornicky, L. Fajt, Pa. Malecki, V. Nazari, W. Noga, Fedor Šimkovic, Ivan Štekl, V. A. Allakhverdyan, A. V. Avrorin, V. M. Aynutdinov, Zuzana Bardačová, I. A. Belolaptikov, I. V. Borina, V. Brudanin, N. M. Budnev, V. Y. Dik, G. V. Domogatsky, A. A. Doroshenko, R. Dv Ornicky, A. N. Dyachok, Zh.-A. M. Dzhilkibaev, Eliška Eckerová, T. V. Elzhov, Stanislav Vasilevich Fialkovsky, A. R. Gafarov, K. V. Golubkov, N. S. Gorshkov, T. I. Gress, M. S. Katulin, K. G. Kebkal, O. G. Kebkal, E. V. Khramov, M. M. Kolbin, K. V. Konischev, K. A. Kopański, A. V. Korobchenko, A. P. Koshechkin, V. A. Kozhin, M. V. Kruglov, M. K. Kryukov, V. F. Kulepov, Pa . Malecki, Y. M. Malyshkin, M. B. Milenin, R. R. Mirgazov, D. V. Naumov, D. P. Petukhov, E. N. Pliskovsky, M. I. Rozanov, V. D. Rushay, E. V. Ryabov, G. B. Safronov, M. D. Shelepov, A. E. Sirenko, A. V. Skurikhin, A. G. Solovjev, M. N. Sorokovikov, A. P. Stromakov, E. O. Sushenok, O. V. Suvorova, V. A. Tabolenko, B. Tarashansky, Y. V. Yablokova, S. Yakovlev, and D. N. Zaborov
Subjects: Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: Baikal-GVD is a gigaton-scale neutrino observatory under construction in Lake Baikal. It currently produces about 100 GB of data every day. For their automatic processing, the Baikal Analysis and Reconstruction software (BARS) was developed. At the moment, it includes such stages as hit extraction from PMT waveforms, assembling events from raw data, assigning timestamps to events, determining the position of the optical modules using an acoustic positioning system, data quality monitoring, muon track and cascade reconstruction, as well as the alert signal generation. These stages are implemented as C++ programs which are executed sequentially one after another and can be represented as a directed acyclic graph. The most resource-consuming programs run in parallel to speed up processing. A separate Python package based on the luigi package is responsible for program execution control. Additional information such as the program execution status and run metadata are saved into a central database and then displayed on the dashboard. Results can be obtained several hours after the run completion., Presented at the 37th International Cosmic Ray Conference (ICRC 2021)
Published: 2021

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

Author: Pavel Volchugov, A. Grinyuk, E. Postnikov, I. Astapov, A. Awad, Pavel Bezyazeekov, M. Blank, A. Borodin, A. Bulan, M. Brueckner, N. M. Budnev, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, O. Grishin, Dieter Horns, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. A. Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, A. Razumov, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, Yu. Semeney, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, A. V. Skurikhin, M. Slunecka, A. Sokolov, C. Spiering, L. Sveshnikova, V. A. Tabolenko, B. Tarashansky, L. Tkachev, R. Togoo, M. Tluczykont, N. Ushakov, A. Vaidyanathan, N. Volkov, D. Voronin, R. Wischnewski, A. Zagorodnikov, D. Zhurov, and I. Yashin
Published: 2021
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29. Tunka-Grande array for high-energy gamma-ray astronomy and cosmic-ray physics: preliminary results

Author: A. Ivanova, M. Brueckner, V. Ptuskino, R. Monkhoev, I. Astapov, Pavel Bezyazeekov, M. Blank, E. A. Bonvech, A. Borodin, M. Brückner, N. M. Budnev, A. Bulan, D. V. Chernov, A. Chiavassa, A. N. Dyachok, A. R. Gafarov, A. Garmash, V. Grebenyuk, E. Gress, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Igoshin, A. D. Ivanova, N. Kalmykov, V. Kindin, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, V. A. Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, M. Lavrova, Y. Lemeshev, B. Lubsandorzhiev, N. Lubsandorzhiev, A. Lukanov, D. Lukyantsev, S. Malakhov, R. R. Mirgazov, R. Mirzoyan, E. Osipova, A. Pakhorukov, L. A. Panasenko, L. Pankov, A. Panov, A. Petrukhin, I. Poddubnyi, D. A. Podgrudkov, V. Poleschuk, V. Ponomareva, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, B. Sabirov, A. Silaev, A. Silaev (junior), Andrei Sidorenkov, A. V. Skurikhin, V. Slunecka, A. Sokolov, V. Sulakov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, B. Tarashchansky, L. Tkachev, M. Tluczykont, A. Tanaev, M. Ternovoy, R. Togoo, N. Ushakov, A. Vaidyanathan, P. Volchugov, N. Volkov, D. Voronin, R. Wischnewski, A. Zagorodnikov, A. Zhaglova, D. Zhurov, and I. Yashin
Published: 2021
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30. Multi-messenger and real-time astrophysics with the Baikal-GVD telescope

Author: K.V. Konischev, K.V. Golubkov, B.A. Tarashansky, Y. V. Yablokova, A. E. Sirenko, V. B. Brudanin, V.F. Kulepov, Z. Bardаčová, V. Nazari, V. Y. Dik, V.D. Rushay, N. M. Budnev, V. A. Allakhverdyan, T. V. Elzhov, Aleksandr Gafarov, R. R. Mirgazov, D. P. Petukhov, A.V. Korobchenko, Mark Shelepov, D. N. Zaborov, A.P. Koshechkin, A.V. Avrorin, A.D. Avrorin, G.B. Safronov, K. A. Kopański, M.V. Kruglov, Fedor Šimkovic, I. Stekl, S.V. Fialkovski, V.A. Tabolenko, Rastislav Dvornický, G.V. Domogatsky, E.N. Pliskovsky, A. A. Doroshenko, E. Eckerová, R. Bannasch, Zh.-A.M. Dzhilkibaev, E. O. Sushenok, Pa. Malecki, Yury Malyshkin, A. P. Stromakov, A. V. Skurikhin, Olga Suvorova, W. Noga, O.G. Kebkal, T. I. Gress, M.I. Rozanov, M.K. Kryukov, A.G. Solovjev, Lukas Fajt, M.N. Sorokovikov, B.A. Shaybonov, A. N. Dyachok, E. V. Ryabov, M.M. Kolbin, M. S. Katulin, V. M. Aynutdinov, Sergey Yakovlev, I. V. Borina, V. A. Kozhin, M.B. Milenin, N.S. Gorshkov, Evgeniy Khramov, I. A. Belolaptikov, Konstantin Kebkal, and Dmitry V. Naumov
Subjects: Physics, High Energy Astrophysical Phenomena (astro-ph.HE), COSMIC cancer database, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Celestial sphere, Astrophysics, Magnetar, law.invention, Telescope, Cascade, law, Muon neutrino, High Energy Physics::Experiment, Neutrino, Gamma-ray burst, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Baikal-GVD deep underwater neutrino experiment participates in the international multi-messenger program on discovering the astrophysical sources of high energy fluxes of cosmic particles, while being at the stage of deployment with a gradual increase of its effective volume to the scale of a cubic kilometer. In April 2021 the effective volume of the detector has been reached 0.4 km3 for cascade events with energy above 100 TeV generated by neutrino interactions in Lake Baikal. The alarm system in real-time monitoring of the celestial sphere was launched at the beginning of 2021, that allows to form the alerts of two ranks like "muon neutrino" and "VHE cascade". Recent results of fast follow-up searches for coincidences of Baikal-GVD high energy cascades with ANTARES/TAToO high energy neutrino alerts and IceCube GCN messages will be presented, as well as preliminary results of searches for high energy neutrinos in coincidence with the magnetar SGR 1935+2154 activity in period of radio and gamma burst in 2020., Comment: Submitted to Proc. of the 37th International Cosmic Ray Conference (ICRC 2021), PoS-0946, July 12th -- 23rd, 2021, Online -- Berlin, Germany. 8 pages, 5 figures
Published: 2021
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31. 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
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32. 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
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33. 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
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34. 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
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35. 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
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36. 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
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37. 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

38. 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

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

Author: Nima Lubsandorzhiev, I. Astapov, Pavel Bezyazeekov, A. Borodin, M. Brueckner, N. M. Budnev, V. Chernykh, A. Chiavassa, A. N. Dyachok, O. Fedorov, A. R. Gafarov, A. Garmash, V. Grebenyuk, O. Gress, T. I. Gress, A. Grinyuk, O. Grishin, Dieter Horns, A. Igoshin, A. Ivanova, N. Kalmykov, Y. Kazarina, V. Kindin, P. Kirilenko, S. Kiryuhin, R. Kokoulin, K. Kompaniets, E. Korosteleva, Vladimir V Kozhin, E. Kravchenko, Alexander Kryukov, L. Kuzmichev, A. Lagutin, Y. Lemeshev, V. Lenok, B. Lubsandorzhiev, R. R. Mirgazov, R. Mirzoyan, R. Monkhoev, E. Osipova, A. Pakhorukov, A. Pan, M. I. Panasyuk, L. Pankov, A. Petrukhin, V. Poleschuk, M. Popesku, E. Popova, A. Porelli, E. Postnikov, V. Prosin, V. Ptuskin, A. Pushnin, R. Raikin, G. Rubtsov, E. V. Ryabov, Y. Sagan, V. Samoliga, A. Silaev, A. Silaev(junior), Andrei Sidorenkov, A. V. Skurikhin, V. Slunecka, A. Sokolov, Y. Suvorkin, L. Sveshnikova, V. A. Tabolenko, B. Tarashchansky, L. Tkachev, M. Tluczykont, A. Tonaev, N. Ushakov, P. Volchugov, D. Voronin, R. Wischnewski, A. Zagorodnikov, D. Zhurov, and I. Yashin
Published: 2019
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40. The optical noise monitoring systems of the Lake Baikal environment for the Baikal-GVD telescope

Author: T. I. Gress, V. B. Brudanin, V.F. Kulepov, K.V. Golubkov, Lukas Fajt, Evgeniy Khramov, I. A. Belolaptikov, A. V. Skurikhin, M.N. Sorokovikov, A.V. Avrorin, Konstantin Kebkal, M.M. Kolbin, B.A. Tarashansky, Evgenii V Rjabov, A.D. Avrorin, A.P. Koshechkin, G.V. Domogatsky, V.D. Rushay, V. M. Aynutdinov, M.V. Kruglov, Sergey Yakovlev, K.V. Konischev, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, M.B. Milenin, R. Bannash, Fedor Šimkovic, I. Stekl, R. Ivanov, V.A. Tabolenko, V. Nazari, E.N. Pliskovsky, B.A. Shaybonov, A. N. Dyachok, N.S. Gorshkov, A.V. Kozhin, Olga Suvorova, G.B. Safronov, Rastislav Dvornický, M.K. Kryukov, S.V. Fialkovsky, E. O. Sushenok, Mark Shelepov, N. M. Budnev, D. P. Petukhov, A.V. Korobchenko, A. I. Panfilov, O.G. Kebkal, M.I. Rozanov, A.G. Solovjev, R. R. Mirgazov, and Aleksandr Gafarov
Subjects: Physics, Telescope, Optics, law, business.industry, Neutrino telescope, Cluster (physics), Optical noise, Monitoring system, Luminescence, business, Light field, law.invention
Abstract: We present data on the luminescence of the Baikal water medium collected with the Baikal-GVD neutrino telescope. This three-dimensional array of light sensors allows the observation of time and spatial variations of the ambient light field. We report on observation of an increase of luminescence activity in 2016 and 2018. On the contrary, we observed practically constant optical noise in 2017. An agreement has been found between two independent optical noise data sets. These are data collected with online monitoring system and the trigger system of the cluster.
Published: 2019
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41. The Baikal-GVD neutrino telescope: First results of multi-messenger study

Author: R. R. Mirgazov, A.V. Avrorin, T. I. Gress, Lukas Fajt, B.A. Tarashansky, M.M. Kolbin, G.B. Safronov, M.V. Kruglov, Rastislav Dvornický, Fedor Šimkovic, K.V. Golubkov, Aleksandr Gafarov, M.N. Sorokovikov, S.V. Fialkovsky, E. O. Sushenok, V. M. Aynutdinov, A.D. Avrorin, A.V. Korobchenko, Sergey Yakovlev, Evgeniy Khramov, Mark Shelepov, I. A. Belolaptikov, Konstantin Kebkal, V. B. Brudanin, V.F. Kulepov, A. V. Skurikhin, G.V. Domogatsky, N.S. Gorshkov, Zhan-Arys Magysovich Dzhilkibaev, V.D. Rushay, M.B. Milenin, Evgenii V Rjabov, E.N. Pliskovsky, A. I. Panfilov, O.G. Kebkal, M.I. Rozanov, R. Bannash, A.G. Solovjev, V. Nazari, N. M. Budnev, I. Stekl, D. P. Petukhov, R. Ivanov, V.A. Tabolenko, A.P. Koshechkin, A. A. Doroshenko, K.V. Konischev, B.A. Shaybonov, A. N. Dyachok, A.V. Kozhin, Olga Suvorova, and M.K. Kryukov
Subjects: Physics, Physics::Instrumentation and Detectors, Gravitational wave, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Astrophysics, Coincidence, Universe, law.invention, Telescope, Neutrino detector, law, High Energy Physics::Experiment, Neutrino, Zenith, media_common
Abstract: Multi-messenger astronomy is a powerful tool to study the physical processes driving the non-thermal Universe. A combination of observations in cosmic rays, neutrinos, photons of all wavelengths and gravitational waves is expected. The alert system of the Baikal-GVD detector under construction will allow for a fast, on-line reconstruction of neutrino events recorded by the Baikal-GVD telescope and - if predefined conditions are satisfied - for the formation of an alert message to other communities. The preliminary results of searches for high-energy neutrinos in coincidence with GW170817/GRB170817A using the cascade mode of neutrino detection are discussed. Two Baikal-GVD clusters were operating during 2017. The zenith angle of NGC 4993 at the detection time of the GW170817 was 93.3 degrees. No events spatially coincident with GRB170817A were found. Given the non-detection of neutrino events associated with GW170817, upper limits on the neutrino fluence were established.
Published: 2019
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42. Time synchronization system of Baikal-GVD

Author: T. I. Gress, A.V. Avrorin, Lukas Fajt, V. M. Aynutdinov, Sergey Yakovlev, E. V. Ryabov, M.M. Kolbin, Aleksandr Gafarov, M.N. Sorokovikov, T. V. Elzhov, O.G. Kebkal, R. R. Mirgazov, R. Bannasch, M.I. Rozanov, Z. Bardačová, Mark Shelepov, S.V. Fialkovsky, A. P. Stromakov, E. O. Sushenok, Dmitry V. Naumov, V. B. Brudanin, V.F. Kulepov, A.G. Solovjev, Evgeniy Khramov, Pa. Malecki, A. V. Skurikhin, A. A. Doroshenko, I. A. Belolaptikov, Konstantin Kebkal, I. Stekl, V.A. Tabolenko, Zh.-A.M. Dzhilkibaev, V. Y. Dik, W. Noga, Y. V. Yablokova, V.D. Rushay, V. A. Allakhverdyan, N.S. Gorshkov, Yury Malyshkin, B.A. Tarashansky, N. M. Budnev, K.V. Golubkov, D. P. Petukhov, A. E. Sirenko, K. A. Kopański, E.N. Pliskovsky, A.D. Avrorin, G.B. Safronov, G.V. Domogatsky, M. S. Katulin, M.V. Kruglov, Rastislav Dvornický, A.V. Korobchenko, Fedor Šimkovic, V. A. Kozhin, M.B. Milenin, K.V. Konischev, I. V. Borina, D. N. Zaborov, A.P. Koshechkin, V. Nazari, B.A. Shaybonov, A. N. Dyachok, E. Eckerová, Olga Suvorova, and M.K. Kryukov
Subjects: Physics, Neutrino detector, Electronic engineering, Instrumentation, Mathematical Physics, Time synchronization
Published: 2021
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43. Neutrino signal at Baikal from dark matter in the Galactic Center

Author: M.B. Milenin, D.Yu. Bogorodsky, B.A. Tarashansky, V.I. Ljashuk, A.V. Avrorin, A. I. Panfilov, Aleksandr Gafarov, O.G. Kebkal, V. A. Kozhin, A.V. Korobchenko, A.P. Koshechkin, M.I. Rozanov, A. V. Zagorodnikov, Mark Shelepov, B.A. Shaybonov, V.B. Brudanin, A.D. Avrorin, N. M. Budnev, G.V. Domogatsky, R. R. Mirgazov, O. N. Gaponenko, A.A. Smagina, A. N. Dyachok, E.N. Pliskovsky, V.F. Kulepov, Evgenii V Rjabov, D.A. Kuleshov, K.V. Golubkov, F.K. Koshel, Valery Zurbanov, K.V. Konischev, T. I. Gress, I. A. Belolaptikov, Konstantin Kebkal, A.V. Skurihin, A.A. Sheifler, E. A. Osipova, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, R. Bannasch, S.V. Fialkovsky, V. A. Zhukov, Olga Suvorova, L. V. Pankov, I. A. Danilchenko, V. M. Aynutdinov, Sergey Yakovlev, Zdenek Hons, and Sergei Demidov
Subjects: Physics, Nuclear and High Energy Physics, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Galactic Center, Dark matter, Scalar field dark matter, Astronomy, Elementary particle, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Galaxy, Massless particle, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, 010306 general physics, Astrophysics::Galaxy Astrophysics, Lepton
Abstract: We discuss neutrinos originating from dark matter in the Galactic Center and present sensitivity of Baikal Gigaton Volume Detector to this signal.
Published: 2016
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44. Data acquisition system for the Baikal-GVD neutrino telescope

Author: R. R. Mirgazov, V. M. Aynutdinov, O. N. Gaponenko, A. A. Doroshenko, Sergey Yakovlev, D.Yu. Bogorodsky, A.V. Korobchenko, B. A. Tarashchansky, Zh.-A.M. Dzhilkibaev, I. A. Belolaptikov, Konstantin Kebkal, V.A. Tabolenko, A. V. Skurikhin, V.B. Brudanin, R. Bannasch, A.A. Smagina, S.V. Fialkovsky, K.V. Golubkov, A.D. Avrorin, Zdenek Hons, V. A. Zhukov, G.V. Domogatsky, N. M. Budnev, E.N. Pliskovsky, A.A. Sheifler, I. A. Danilchenko, A. I. Panfilov, D.A. Kuleshov, Valery Zurbanov, O.G. Kebkal, F.K. Koshel, A. N. Dyachok, K.V. Konischev, M.I. Rozanov, T. I. Gress, E. V. Ryabov, Olga Suvorova, L. V. Pankov, A.P. Koshechkin, A.V. Avrorin, B. A. Shaibonov, Aleksandr Gafarov, M.B. Milenin, A. V. Zagorodnikov, V.F. Kulepov, E. A. Osipova, V. A. Kozhin, and V. I. Lyashuk
Subjects: Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Neutrino telescope, Detector, Volume (computing), Astrophysics, 01 natural sciences, Data acquisition, Neutrino detector, 0103 physical sciences, Neutrino, 010306 general physics, Digitization, Remote sensing, Data transmission
Abstract: The objective of the Baikal-GVD project is the construction of a km3-scale neutrino telescope in Lake Baikal. The Gigaton Volume Detector consists of a large three-dimensional array of photo-multiplier tubes. The first GVD-cluster has been deployed and commissioned in April 2015. The data acquisition system (DAQ) of the detector takes care of the digitization of the photo-multiplier tube signals, data transmission, filtering and storage. The design and the implementation of the data acquisition system are described.
Published: 2016
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45. A search for neutrino signal from dark matter annihilation in the center of the Milky Way with Baikal NT200

Author: M.B. Milenin, T. I. Gress, E.N. Pliskovsky, Mark Shelepov, A.V. Skurihin, V.B. Brudanin, D.A. Kuleshov, F.K. Koshel, Sergei Demidov, A.V. Avrorin, N. M. Budnev, Aleksandr Gafarov, A.V. Korobchenko, R. R. Mirgazov, A.D. Avrorin, A. V. Zagorodnikov, A.A. Sheifler, B.A. Tarashansky, O. N. Gaponenko, A. I. Panfilov, A.P. Koshechkin, V.F. Kulepov, Evgenii V Rjabov, V. M. Aynutdinov, G.V. Domogatsky, Sergey Yakovlev, Z. Honz, I. A. Danilchenko, O.G. Kebkal, M.I. Rozanov, K.V. Konischev, I. A. Belolaptikov, Konstantin Kebkal, K.V. Golubkov, Valery Zurbanov, V.I. Ljashuk, D.Yu. Bogorodsky, E. A. Osipova, V.A. Tabolenko, R. Bannasch, S.V. Fialkovsky, V. A. Zhukov, A. A. Doroshenko, Zh.-A.M. Dzhilkibaev, A.A. Smagina, A.V. Kozhin, Olga Suvorova, L. V. Pankov, B.A. Shaybonov, and A. N. Dyachok
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Physics, 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hot dark matter, Dark matter, Scalar field dark matter, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics, 01 natural sciences, Dark matter halo, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), Neutrino detector, 0103 physical sciences, Warm dark matter, Neutrino, Astrophysics - High Energy Astrophysical Phenomena, 010306 general physics, Light dark matter
Abstract: We reanalyze the dataset collected during the years 1998--2003 by the deep underwater neutrino telescope NT200 in the lake Baikal with the low energy threshold (10 GeV) in searches for neutrino signal from dark matter annihilations near the center of the Milky Way. Two different approaches are used in the present analysis: counting events in the cones around the direction towards the Galactic Center and the maximum likelihood method. We assume that the dark matter particles annihilate dominantly over one of the annihilation channels $b\bar{b}$, $W^+W^-$, $\tau^+\tau^-$, $\mu^+\mu^-$ or $\nu\bar{\nu}$. No significant excess of events towards the Galactic Center over expected neutrino background of atmospheric origin is found and we derive 90% CL upper limits on the annihilation cross section of dark matter., Comment: 15 pages, 14 figures, published version
Published: 2016
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46. Status of the early construction phase of Baikal-GVD

Author: Aleksandr Gafarov, A. V. Zagorodnikov, A.P. Koshechkin, I. A. Danilchenko, A. I. Panfilov, O.G. Kebkal, T. I. Gress, M.I. Rozanov, A. A. Perevalov, E.N. Pliskovsky, D.A. Kuleshov, F.K. Koshel, A.A. Sheifler, A.D. Avrorin, A. V. Skurikhin, K. V. Konishchev, V.F. Kulepov, G.V. Domogatsky, D. Bogorodsky, A.V. Korobchenko, N. M. Budnev, B. Shaibonov, V. M. Aynutdinov, V.F. Rubtsov, A.A. Smagina, V.B. Brudanin, M.B. Milenin, Sergey Yakovlev, E. A. Osipova, Z. Honz, Valery Zurbanov, Olga Suvorova, L. V. Pankov, R. R. Mirgazov, A. A. Doroshenko, O. N. Gaponenko, Zh.-A.M. Dzhilkibaev, Evgenii V Rjabov, V. A. Kozhin, B. A. Tarashchansky, A. N. Dyachok, V.I. Ljashuk, A.V. Avrorin, V. A. Poleschuk, E. N. Konstantinov, I. A. Belolaptikov, Konstantin Kebkal, R. Bannasch, S.V. Fialkovsky, V. A. Zhukov, and K.V. Golubkov
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Positioning system, Physics::Instrumentation and Detectors, business.industry, Astrophysics::High Energy Astrophysical Phenomena, Neutrino telescope, Astrophysics::Instrumentation and Methods for Astrophysics, Phase (waves), Astronomy, Cluster (spacecraft), 01 natural sciences, Software deployment, 0103 physical sciences, Instrumentation (computer programming), Neutrino telescopes, Lake Baikal, Aerospace engineering, Neutrino, 010306 general physics, business, 010303 astronomy & astrophysics, Cherenkov radiation
Abstract: The second-stage neutrino telescope BAIKAL-GVD in Lake Baikal will be a research infrastructure aimed mainly at studying astrophysical neutrino fluxes by recording the Cherenkov radiation of the secondary muons and showers generated in neutrino interactions. The prototyping/early construction phase of the BAIKAL-GVD project which is directed towards deployment and operation of the first demonstration cluster has been started in April 2011. An important step on realization of the GVD project was made in 2014 by the deployment of the second stage of the demonstration cluster which contains 112 OMs arranged on five strings, as well as equipment of an acoustic positioning system and instrumentation string with an array calibration and environment monitoring equipment. Deployment of the demonstration cluster will be completed in 2015.
Published: 2016
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47. 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
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48. 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
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49. First detection of gamma-ray sources at TeV energies with the first imaging air Cherenkov telescope of the TAIGA installation

Author: M. Popesku, V. S. Ptuskin, A. Pushnin, M. Slunecka, M. V. Lavrova, A. Petrukhin, M. Tluczykont, A. Silaev junior, Andrey Sokolov, Grigory Rubtsov, A. N. Dyachok, N. N. Kalmykov, L. A. Kuzmichev, B.A. Tarashansky, V. M. Grebenyuk, M. Ternovoy, N. Ushakov, O. A. Gress, V. A. Kozhin, O. G. Grishin, R. R. Mirgazov, V. Samoliga, A. Ivanova, L. V. Pankov, T. I. Gress, L. G. Sveshikova, N. B. Lubsandorzhiev, Y. Suvorkin, A. Borodin, Aleksandr Gafarov, Evgeny Postnikov, V. A. Poleschuk, E. A. Osipova, Mikhail Panasyuk, A. Bulan, Pavel Bezyazeekov, A. A. Silaev, A. V. Zagorodnikov, D. Zhurov, D. Voronin, A. Chiavassa, A. Porelli, V. V. Kindin, B. K. Lubsandorzhiev, R. Mirzoyan, V.A. Tabolenko, Y. Sagan, A. Yu. Garmash, E. A. Kravchenko, E. E. Korosteleva, L. G. Tkachev, R. P. Kokoulin, K. G. Kompaniets, A. V. Skurikhin, P. Volchugov, A. Pan, A. L. Pakhorukov, Evgenii V Rjabov, N. M. Budnev, A. Tanaev, A. Yu. Sidorenkov, Dieter Horns, A. Vaidyanathan, Roman Raikin, E.G. Popova, A. A. Grinyuk, R. Wischnewski, R. D. Monkhoev, I. I. Yashin, Alexander Kryukov, M. Brückner, Anatoly Lagutin, Yu. Lemeshev, S. Kiryuhin, V. V. Prosin, M. Blank, and I. I. Astapov
Subjects: Telescope, Physics, History, law, Astrophysics::High Energy Astrophysical Phenomena, Taiga, Astrophysics::Instrumentation and Methods for Astrophysics, Gamma ray, Astronomy, Cherenkov radiation, Computer Science Applications, Education, law.invention
Abstract: TAIGA array addresses gamma-ray astronomy at energies from a few TeV to several PeV as well as cosmic ray physics from 100 TeV to several EeV. A 1 km2 TAIGA setup will consist of 120 wide-angle detectors of the Cherenkov timing array TAIGA-HiSCORE and three imaging air Cherenkov telescopes with the field of view diameter of 9.6°. In this paper, first experimental results of the first operation stage are presented: signal detection from two gamma-ray sources, the Crab Nebula and Markarian 421, by the first IACT in stand-alone mode. The detected signal is shown to be in agreement with the Monte Carlo expectation. In future, gamma-ray signal will be detected by a larger number of TAIGA telescopes as well as the TAIGA-HiSCORE array, that is, in combined operation mode.
Published: 2020
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50. 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
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