Kang, D.D.KangApel, W. D.W. D.ApelArteaga-Velázquez, J. C.J. C.Arteaga-VelázquezBekk, K.K.BekkBertaina, M.M.BertainaBlümer, J.J.BlümerBozdog, H.H.BozdogBrancus, I. M.I. M.BrancusCantoni, E.E.CantoniChiavassa, A.A.ChiavassaCossavella, F.F.CossavellaDaumiller, K.K.Daumillerde Souza, V.V.de SouzaDi Pierro, F.F.Di PierroDoll, P.P.DollEngel, R.R.EngelFeng, Z.Z.FengFuhrmann, D.D.FuhrmannGherghel-Lascu, A.A.Gherghel-LascuGils, H. J.H. J.GilsGlasstetter, R.R.GlasstetterGrupen, C.C.GrupenHaungs, A.A.HaungsHeck, D.D.HeckHörandel, J. R.J. R.HörandelHuber, D.D.HuberHuege, T.T.HuegeKampert, K. H.K. H.KampertKlages, H. O.H. O.KlagesLink, K.K.LinkŁuczak, P.P.ŁuczakMathes, H. J.H. J.MathesMayer, H. J.H. J.MayerMilke, J.J.MilkeMitrica, B.B.MitricaMorello, C.C.MorelloOehlschläger, J.J.OehlschlägerOstapchenko, S.S.OstapchenkoPalmieri, N.N.PalmieriPetcu, M.M.PetcuPierog, T.T.PierogRebel, H.H.RebelRoth, M.M.RothSchieler, H.H.SchielerSchoo, S.S.SchooSchröder, F.F.SchröderSima, O.O.SimaToma, G.G.TomaTRINCHERO, GIAN CARLOGIAN CARLOTRINCHEROUlrich, H.H.UlrichWeindl, A.A.WeindlWochele, J.J.WocheleZabierowski, J.J.Zabierowski2020-06-012020-06-0120151742-6588http://hdl.handle.net/20.500.12386/25851Using data measured by the KASCADE-Grande air shower array, an upper limit to the flux of ultra-high energy gamma-rays in the primary cosmic-ray flux is determined. KASCADE-Grande measures the electromagnetic and muonic components for individual air showers in the energy range from 10 PeV up to 1 EeV. The analysis is performed by selecting air showers with low muon contents. A preliminary result on the 90% C.L. upper limit to the relative intensity of gamma-ray with respect to cosmic ray primaries is presented and compared with limits reported by other measurements.STAMPAenConference paper10.1088/1742-6596/632/1/0120132-s2.0-84940702450000362286200013https://iopscience.iop.org/article/10.1088/1742-6596/632/1/0120132015JPhCS.632a2013KFIS/05 - ASTRONOMIA E ASTROFISICA