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; 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

doi:10.1051/epjconf/201920703004

Proceedings

Open Access

EPJ Web of Conferences 207, 03004 (2019)
https://doi.org/10.1051/epjconf/201920703004

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

D. D. Dzhappuev¹, I. M. Dzaparova¹^,2, E. A. Gorbacheva¹, I. S. Karpikov¹, M. M. Khadzhiev¹, N. F. Klimenko¹, A. U. Kudzhaev¹, A. N. Kurenya¹, A. S. Lidvansky¹, O. I. Mikhailova¹, V. B. Petkov¹^,2, K. V. Ptitsyna¹, V. S. Romanenko¹, G. I. Rubtsov¹, S. V. Troitsky¹^*, A. F. Yanin¹ and Ya. V. Zhezher¹

¹ Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary prospect 7A, 117312 Moscow, Russia
² Institute of Astronomy, Russian Academy of Sciences, Moscow 119017, Russia

^* Presenter at VLVNT-2018; e-mail: st@ms2.inr.ac.ru

Published online: 10 May 2019

Abstract

Early results of the search for E_γ > 1 PeV cosmic photons from point sources with the data of Carpet–2, an air-shower array equipped with a 175 m² 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 m² muon detector), scheduled to start data taking in 2019, for searches of E_γ > 100 TeV photons, are briefly discussed.

© The Authors, published by EDP Sciences, 2019

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