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

Свешникова, Л.; Астапов, И. И.; Bezyazeekov, P. A.; Blank, Michael; Бородин, А.; Brückner, Martin; Буднев, Н.; Булан, А.; Vaidyanathan, A.; Wischnewski, R.; Волчугов, П.; Воронин, Д.; Гафаров, А. Р.; Garmash, A.; Grebenyuk, V.; Gress, O.; Гресс, Т.; Grinyuk, A.; Гришин, О.; Dyachok, A. N.; Журов, Д. П.; Загородников, А.; Ivanova, A. L.; Калмыков, Н. Н.; Киндин, В. В.; Kiryukhin, S. N.; Кожин, В. А.; Кокоулин, Р. П.; Компаниец, К. Г.; Коростелева, Е. Е.; Кравченко, Е. А.; Kryukov, Alexander; Kuzmichev, L. A.; Чиавасса, А.; Лаврова, М.; Лагутин, А. А.; Lemeshev, Yu.; Лубсандоржиев, Б.; Лубсандоржиев, Н.; Миргазов, Р. Р.; Mirzoyan, R.; Монхоев, Р.; Osipova, E.; Пан, А.; Panasyuk, M. I.; Pankov, L.; Пахоруков, А.; Петрухин, А. А.; Poleschuk, V.; Попеску, М.; Popova, E.; Порелли, А.; Постников, Е.; Просин, В. В.; Птускин, В. С.; Пушнин, А.; Райкин, Р. И.; Рубцов, Г.; Rjabov, E.V.; Sagan, Y.; Самолига, В.; Sidorenkov, A.; Силаев, А.; Скурихин, А. В.; Slunečka, M.; Sokolov, A.; Suvorkin, Y.; Таболенко, В. А.; Танаев, А.; Tarashansky, B.; Ternovoy, M.; Ткачев, Л.; Tluczykont, M.; Ушаков, Н.; Horns, D.; Yashin, I. I.

doi:10.3103/s1062873821040365

Cited by 10 publications

(7 citation statements)

References 8 publications

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“…The first test sources selected for observation were the Crab Nebula and Mrk 421. Both these sources were successfully detected [3,4] in the preliminary data analysis of stand-alone operation of the 1st IACT.…”

Section: Pos(icrc2021)713mentioning

confidence: 91%

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

Volchugov¹,

Grinyuk²,

Постников³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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The 2nd TAIGA imaging air Cherenkov telescope (IACT) has successfully been put into operation in the Tunka Valley in fall 2020. Currently three more telescopes are under construction and completion. The ability to use the telescopes in the so-called stereo mode of image analysis by taking into account the unusually large distance between them (from 320 m to 500 m), well exceeding the inter-telescope distances in conventional IACT stereo systems, is being explored and discussed. The results of the dedicated Monte Carlo are compared with the experiment data from the 1st and the 2nd TAIGA-IACT.

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Section: Pos(icrc2021)713mentioning

confidence: 91%

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

Volchugov¹,

Grinyuk²,

Постников³

et al. 2021

Proceedings of 37th International Cosmic Ray Conference — PoS(ICRC2021)

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“…Width and length parameters are standard deviations along the minor and major axis, dist parameter is a distance from the weighted centroid of the image to the source, con is a concentration parameter of the image. A detailed description of these and other Hillas parameters is given in [34,35]. Using the system of cuts to the Hillas parameters [34] or the widely used Random Forest Classifier [36], it is possible to suppress the number of events from hadrons to a level sufficient to isolate events from gamma quanta.…”

Section: Stand-alone Mode Of An Iact Operation For E < 60 Tevmentioning

confidence: 99%

“…A detailed description of these and other Hillas parameters is given in [34,35]. Using the system of cuts to the Hillas parameters [34] or the widely used Random Forest Classifier [36], it is possible to suppress the number of events from hadrons to a level sufficient to isolate events from gamma quanta. The effective area of registration of events from gamma quanta, after applying the selection criteria, is 5 • 10 4 m 2 at energies above 10 TeV.…”

Section: Stand-alone Mode Of An Iact Operation For E < 60 Tevmentioning

confidence: 99%

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

Budnev,

Astapov,

Bezyazeekov

et al. 2023

SciPost Phys. Proc.

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

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“…To distinguish events from gamma-ray against the background of events from cosmic rays, according to the data of one telescope, differences in the angular distribution of the Cherenkov radiation of the EAS are used, leading to a difference in the shape of the images in the telescope camera. The shape of the image is characterized by the Hillas parameters [34,35] (width, length, azwidth, dist, consentration, size), which are restored by the values of signal amplitudes in camera pixels. Using the system of cuts to the Hillas parameters [34] or the widely used RANDOM Forrest classifier [36,37], it is possible to suppress the number of events from hadrons to a level sufficient to isolate events from gamma quanta.…”

Section: Stand-alone Mode Of An Iact Operation For E < 60 Tevmentioning

confidence: 99%

“…The shape of the image is characterized by the Hillas parameters [34,35] (width, length, azwidth, dist, consentration, size), which are restored by the values of signal amplitudes in camera pixels. Using the system of cuts to the Hillas parameters [34] or the widely used RANDOM Forrest classifier [36,37], it is possible to suppress the number of events from hadrons to a level sufficient to isolate events from gamma quanta. The effective area of registration of events from gamma quanta, after applying the selection criteria, is 5.104 m 2 at energy above 10 TeV.…”

Section: Stand-alone Mode Of An Iact Operation For E < 60 Tevmentioning

confidence: 99%