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arxiv: 1812.02663 · v2 · pith:AVOQFQQRnew · submitted 2018-12-06 · 🌌 astro-ph.HE

Search for astrophysical PeV gamma rays from point sources with Carpet-2

D.D. Dzhappuev , I.M. Dzaparova , E.A. Gorbacheva , I.S. Karpikov , M.M. Khadzhiev , N.F. Klimenko , A.U. Kudzhaev , A.N. Kurenya
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A.S. Lidvansky O.I. Mikhailova V.B. Petkov K.V. Ptitsyna V.S. Romanenko G.I. Rubtsov S.V. Troitsky A.F. Yanin Ya.V. Zhezher
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classification 🌌 astro-ph.HE
keywords gammasourcescarpet-2datadetectoreventsmuonphotons
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Early results of the search for E_\gamma>1 PeV cosmic photons from point sources with the data of Carpet-2, an air-shower array equipped with a 175 m^2 muon detector, are presented. They include 95% CL upper limits on PeV photon fluxes from stacked directions of high-energy IceCube neutrino events and from four predefined sources, Crab, Cyg X-3, Mrk 421 and Mrk 501. An insignificant excess of events from Mrk 421 will be further monitored. Prospects of the use of the upgraded installation, Carpet-3 (410 m^2 muon detector), scheduled to start data taking in 2019, for searches of E_\gamma>100 TeV photons, are briefly discussed.

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  1. Carpet results on astrophysical gamma rays above 100 TeV

    astro-ph.HE 2019-07 unverdicted novelty 3.0

    Carpet reports first results from a search for astrophysical gamma rays with energies above 100 TeV using an air-shower array equipped with muon discrimination.