Observations of active galactic nuclei with the GT-48 CrAO gamma-ray telescope in 2004 |
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| Authors: | Yu I Neshpor V S Eliseev N A Jogolev E M Nehay Z N Skiruta V V Fidelis V P Fomin |
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| Institution: | (1) Crimean Astrophysical Observatory (CrAO), pos. Nauchnyi, Crimea, 98409, Ukraine |
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| Abstract: | Observations of several active galactic nuclei were performed with the GT-48 gamma-ray telescope at CrAO in 2004: 3C 66A, Mk 421, Mk 501, 1H 1426, 1ES 1959, and BL Lac. Very-high-energy (E ≥ 1012 eV) gamma-ray fluxes were recorded from 3C 66A, Mk 421, Mk 501, and 1H 1426 at a confidence level of more than 4σ. Upper limits for the flux of very-high-energy gamma rays are presented for 1ES 1959 and BL Lac. The 2004 observational data for 3C 66A (z = 0.44) confirm the results obtained previously at CrAO. |
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| Keywords: | galaxies gamma-ray emission |
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