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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

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Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

The TAIGA hybrid gamma-ray observatory is currently being developed in the Tunka Valley, 50 km from Lake Baikal, to study gamma radiation and charged cosmic ray fluxes in the 1013–1018 eV range. The first results are presented for detecting gamma rays from the Crab Nebula in 44 h of observation, and from the blazar Markarian 421 in 62 h of observation with a significance of around 5–6 σ by one of the TAIGA IACT telescopes.

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Funding

This work was supported by the RF Ministry of Science and Education as part of State Task FZZE-2020-0024, agreement no. 075-15-2019-163; by the Russian Science Foundation, project nos. 19-72-20067 (sections 1, 3, 4, 5) and 19-72-20173 (section 2); and by the Russian Foundation for Basic Research, project nos. 19-52-44002 and 19‑32-60003.

Author information

Authors and Affiliations

  1. Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119991, Moscow, Russia

    L. G. Sveshnikova, M. Blank, A. Bulan, P. Volchugov, N. N. Kalmykov, V. A. Kozhin, E. E. Korosteleva, A. P. Kryukov, L. A. Kuzmichev, N. B. Lubsandorzhiev, R. Mirzoyan, E. A. Osipova, M. I. Panasyuk, E. G. Popova, E. B. Postnikov, V. V. Prosin, A. A. Silaev, A. A. Silaev Jr. & A. V. Skurikhin

  2. Institute of Applied Physics, Irkutsk State University, 664003, Irkutsk, Russia

    P. A. Bezyazeekov, M. Blank, N. M. Budnev, A. R. Gafarov, O. A. Gress, T. I. Gress, O. G. Grishin, A. N. Dyachok, D. P. Zhurov, A. V. Zagorodnikov, A. L. Ivanova, S. N. Kiryukhin, Yu. Lemeshev, R. R. Mirgazov, R. D. Monkhoev, L. V. Pankov, A. L. Pakhorukov, V. A. Poleschuk, A. A. Pushnin, E. V. Rjabov, V. S. Samoliga, Ya. Suvorkin, V. A. Tabolenko, A. Tanaev, B. A. Tarashansky & M. Ternovoy

  3. Joint Institute for Nuclear Research, 141980, Dubna, Russia

    A. N. Borodin, V. M. Grebenyuk, A. A. Grinyuk, M. Lavrova, A. Pan, Ya. I. Sagan, M. Slunecka & L. G. Tkachev

  4. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), 115409, Moscow, Russia

    I. I. Astapov, V. V. Kindin, R. P. Kokoulin, K. G. Kompaniets, A. A. Petrukhin & I. I. Yashin

  5. Novosibirsk State University, 630090, Novosibirsk, Russia

    A. Vaidyanathan, A. Yu. Garmash, E. A. Kravchenko & A. V. Sokolov

  6. Institute for Nuclear Research, Russian Academy of Sciences, 117312, Moscow, Russia

    D. Voronin, B. K. Lubsandorzhiev, G. I. Rubtsov, A. Yu. Sidorenkov & N. Ushakov

  7. Pushkov Institute of Terrestrial Magnetism, Ionosphere, and Radio Wave Propagation, 142190, Troitsk, Moscow oblast, Russia

    V. S. Ptuskin

  8. Budker Institute of Nuclear Physics, 630090, Novosibirsk, Russia

    A. Yu. Garmash, E. A. Kravchenko & A. V. Sokolov

  9. Altai State University, 656049, Barnaul, Russia

    A. A. Lagutin & R. I. Raikin

  10. Dubna State University, 141980, Dubna, Moscow oblast, Russia

    V. M. Grebenyuk, Ya. I. Sagan & L. G. Tkachev

  11. Max Planck Institute for Physics, 80539, Munich, Germany

    R. Mirzoyan

  12. Deutsches Elektronen-Synchrotron (DESY), 15738, Zeuthen, Germany

    M. Brückner, R. Wischnewski & A. Porelli

  13. Institute for Experimental Physics, University of Hamburg, 22761, Hamburg, Germany

    M. Tluczykont & D. Horns

  14. University of Turin, 10124, Turin, Italy

    A. Chiavassa

  15. Institute of Space Science, 077125, Bucharest, Romania

    M. Popesku

Authors
  1. L. G. Sveshnikova
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  2. I. I. Astapov
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  3. P. A. Bezyazeekov
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  4. M. Blank
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  5. A. N. Borodin
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  6. M. Brückner
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  7. N. M. Budnev
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  8. A. Bulan
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  9. A. Vaidyanathan
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  10. R. Wischnewski
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  11. P. Volchugov
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  14. A. Yu. Garmash
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  15. V. M. Grebenyuk
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  16. O. A. Gress
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  18. A. A. Grinyuk
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  20. A. N. Dyachok
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  30. E. E. Korosteleva
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  31. E. A. Kravchenko
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  32. A. P. Kryukov
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  33. L. A. Kuzmichev
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  36. A. A. Lagutin
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  73. L. G. Tkachev
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Corresponding author

Correspondence to L. G. Sveshnikova.

Additional information

Translated by L. Mukhortova

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Sveshnikova, L.G., Astapov, I.I., Bezyazeekov, P.A. et al. 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. Bull. Russ. Acad. Sci. Phys. 85, 398–401 (2021). https://doi.org/10.3103/S1062873821040365

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  • DOI: https://doi.org/10.3103/S1062873821040365

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