Search for astrophysical PeV gamma rays from point sources with Carpet-2
arXiv:1812.02663 · doi:10.1051/epjconf/201920703004
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 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_γ>100 TeV photons, are briefly discussed.
arXiv comment5 pages, 2 figures, webofc style. Presented at the VLVNT-2018 workshop, Dubna, October 2-4, 2018. V2: minor copy-editing changes
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Cited by in corpus (8)
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- Observation of photons above 300 TeV associated with a high-energy neutrino from the Cygnus region
- Galactic diffuse gamma-ray emission at TeV energy
- High-energy neutrinos from cosmic ray interactions in the Local Bubble
- Carpet-3 detection of a photon-like air shower with estimated primary energy above 100 TeV in a spatial and temporal coincidence with GRB 221009A
- Carpet-2 search for gamma rays above 100 TeV in coincidence with HAWC and IceCube alerts
- Carpet results on astrophysical gamma rays above 100 TeV
- Upper limits on the isotropic diffuse flux of cosmic PeV photons from Carpet-2 observations