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000643477 005__ 20260118054342.0
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000643477 0247_ $$2arXiv$$aarXiv:2506.01733
000643477 0247_ $$2datacite_doi$$a10.3204/PUBDB-2026-00224
000643477 037__ $$aPUBDB-2026-00224
000643477 041__ $$aEnglish
000643477 082__ $$a520
000643477 088__ $$2arXiv$$aarXiv:2506.01733
000643477 1001_ $$00000-0002-3791-1997$$aAlispach, C.$$b0
000643477 245__ $$aObservation of the Crab Nebula with the Single-Mirror Small-Size Telescope stereoscopic system at low altitude
000643477 260__ $$c2025
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000643477 500__ $$aA&A 699, A255 (2025). 21 pages, 20 figures. Published in Astronomy & Astrophysics
000643477 520__ $$aThe Single-Mirror Small-Size Telescope (SST-1M) stereoscopic system is composed of two Imaging Atmospheric Cherenkov Telescopes (IACTs) designed to deliver optimal performance for gamma-ray astronomy in the multi-TeV energy range. It features a 4-m diameter tessellated mirror dish and an innovative SiPM-based camera. Its optical system features a 4-m diameter spherical mirror dish based on the Davies-Cotton design, maintaining a good image quality over a large field of view (FoV), while minimizing optical aberrations. In 2022, two SST-1M telescopes were installed at the Ondřejov Observatory, Czech Republic at an altitude of 510 meters above sea level, collecting data for commissioning and astronomical observations since then. We present the first SST-1M observations of the Crab Nebula, conducted between September 2023 and March 2024 in both mono and stereoscopic modes. During this observation period, 46 hours for the SST-1M-1 and 52 hours for the SST-1M-2 were collected (of which 33 hours were in stereoscopic mode). In this work, we used the Crab Nebula observation to validate the expected performance of the instrument, as evaluated by Monte Carlo (MC) simulations that were carefully tuned to account for instrumental and atmospheric effects. We determined that the energy threshold at the analysis level for the zenith angles below 30° is 1 TeV for mono mode and 1.3 TeV for stereo mode. The energy and angular resolutions were approximately 20% and 0.18° for mono mode and 10% and 0.10° for stereo mode, respectively. We present an off-axis performance assessment of the instrument and a detailed study of the systematic uncertainties. The full simulation results for the telescope and its camera are compared to the data for the first time, enabling a deeper understanding of the SST-1M array performance.Key words: instrumentation: detectors / methods: data analysis / gamma rays: general / ISM: individual objects: Crab Nebula
000643477 536__ $$0G:(DE-HGF)POF4-613$$a613 - Matter and Radiation from the Universe (POF4-613)$$cPOF4-613$$fPOF IV$$x0
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000643477 7001_ $$aAraudo, A.$$b1
000643477 7001_ $$00000-0002-6556-3344$$aBalbo, M.$$b2
000643477 7001_ $$00000-0002-2688-0224$$aBeshley, V.$$b3
000643477 7001_ $$00000-0002-5870-8947$$aBlažek, J.$$b4
000643477 7001_ $$00000-0002-1460-496X$$aBorkowski, J.$$b5
000643477 7001_ $$aBoula, S.$$b6
000643477 7001_ $$00000-0003-2045-4803$$aBulik, T.$$b7
000643477 7001_ $$aCadoux, F.$$b8
000643477 7001_ $$00000-0002-6144-9122$$aCasanova, S.$$b9
000643477 7001_ $$aChristov, A.$$b10
000643477 7001_ $$0P:(DE-H253)PIP1032994$$aChudoba, J.$$b11
000643477 7001_ $$aChytka, L.$$b12
000643477 7001_ $$00009-0009-2107-1848$$aČechvala, P.$$b13
000643477 7001_ $$00000-0001-7805-4373$$aDědic, P.$$b14
000643477 7001_ $$00000-0001-8530-7447$$adella Volpe, D.$$b15
000643477 7001_ $$aFavre, Y.$$b16
000643477 7001_ $$0P:(DE-H253)PIP1019066$$aGarczarczyk, M.$$b17
000643477 7001_ $$00000-0001-7765-8271$$aGibaud, L.$$b18
000643477 7001_ $$aGieras, T.$$b19
000643477 7001_ $$00009-0000-8051-7605$$aGłowacki, E.$$b20
000643477 7001_ $$00000-0003-3139-7234$$aHamal, P.$$b21
000643477 7001_ $$00000-0003-1215-0148$$aHeller, M.$$b22
000643477 7001_ $$00000-0003-4223-7316$$aHrabovský, M.$$b23
000643477 7001_ $$aJaneček, P.$$b24
000643477 7001_ $$aJelínek, M.$$b25
000643477 7001_ $$aJílek, V.$$b26
000643477 7001_ $$0P:(DE-HGF)0$$aJuryšek, J.$$b27$$eCorresponding author
000643477 7001_ $$00000-0002-5760-0459$$aKaras, V.$$b28
000643477 7001_ $$aLacave, B.$$b29
000643477 7001_ $$aLyard, E.$$b30
000643477 7001_ $$aMach, E.$$b31
000643477 7001_ $$00000-0001-7748-7468$$aMandát, D.$$b32
000643477 7001_ $$aMarek, W.$$b33
000643477 7001_ $$aMichal, S.$$b34
000643477 7001_ $$aMichałowski, J.$$b35
000643477 7001_ $$aMiroń, M.$$b36
000643477 7001_ $$00000-0002-8663-3882$$aModerski, R.$$b37
000643477 7001_ $$00000-0001-5014-2152$$aMontaruli, T.$$b38
000643477 7001_ $$aMuraczewski, A.$$b39
000643477 7001_ $$00009-0003-5771-5197$$aMuthyala, S. R.$$b40
000643477 7001_ $$aMüller, A. L.$$b41
000643477 7001_ $$00000-0002-7150-4527$$aNagai, A.$$b42
000643477 7001_ $$aNalewajski, K.$$b43
000643477 7001_ $$aNeise, D.$$b44
000643477 7001_ $$aNiemiec, J.$$b45
000643477 7001_ $$00000-0003-4075-6745$$aNikołajuk, M.$$b46
000643477 7001_ $$0P:(DE-H253)PIP1100791$$aNovotny, Ladislav$$b47$$eCorresponding author
000643477 7001_ $$aOstrowski, M.$$b48
000643477 7001_ $$00000-0003-2061-6059$$aPalatka, M.$$b49
000643477 7001_ $$00000-0002-8421-0456$$aPech, M.$$b50
000643477 7001_ $$00000-0002-3238-9597$$aProuza, M.$$b51
000643477 7001_ $$aSchovanek, P.$$b52
000643477 7001_ $$00000-0002-4387-9372$$aSliusar, V.$$b53
000643477 7001_ $$aStawarz, Ł.$$b54
000643477 7001_ $$aSternberger, R.$$b55
000643477 7001_ $$aStodulska, M.$$b56
000643477 7001_ $$aŚwierblewski, J.$$b57
000643477 7001_ $$00000-0002-1730-6992$$aŚwierk, P.$$b58
000643477 7001_ $$aŠtrobl, J.$$b59
000643477 7001_ $$00009-0001-0488-7476$$aTavernier, T.$$b60
000643477 7001_ $$aTrávníček, P.$$b61
000643477 7001_ $$aPujadas, I. Troyano$$b62
000643477 7001_ $$00000-0002-7945-3605$$aVícha, J.$$b63
000643477 7001_ $$aWalter, R.$$b64
000643477 7001_ $$aZiętara, K.$$b65
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000643477 9141_ $$y2025
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