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arxiv: 1702.08024 · v1 · submitted 2017-02-26 · 🌌 astro-ph.HE

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Constraints on the flux of sim (10¹⁶ - 10^{17.5}) eV cosmic photons from the EAS-MSU muon data

Yu.A. Fomin , N.N. Kalmykov , I.S. Karpikov , G.V. Kulikov , M.Yu. Kuznetsov , G.I. Rubtsov , V.P. Sulakov , S.V. Troitsky
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classification 🌌 astro-ph.HE
keywords datafluxgamma-raylimitsphotonsarraycandidateconfirm
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Results of the search for $\sim (10^{16} - 10^{17.5})$ eV primary cosmic-ray photons with the data of the Moscow State University (MSU) Extensive Air Shower (EAS) array are reported. The full-scale reanalysis of the data with modern simulations of the installation does not confirm previous indications of the excess of gamma-ray candidate events. Upper limits on the corresponding gamma-ray flux are presented. The limits are the most stringent published ones at energies $\sim 10^{17}$ eV.

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