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Type: Artigo de periódico
Title: Search For Cosmic γ-ray Bursts In The (1÷50) Gev Energy Range
Author: Aglietta M.
Alessandro B.
Antonioli P.
Arneodo F.
Bergamasco L.
Fauth A.C.
Castagnoli C.
Castellina A.
Cattadori C.
Chiavassa A.
Cini G.
Piazzoli B.D.
Fulgione W.
Galeotti P.
Ghia P.L.
Mannocchi G.
Morello C.
Navarra G.
Riccati L.
Saavedra O.
Trinchero G.C.
Vallania P.
Vernetto S.
Abstract: A search for cosmic gamma-ray bursts in the GeV energy range has been performed by means of the EAS-TOP Extensive Air Shower array at Campo Imperatore (Gran Sasso Laboratories) during the period March-December 1990. In 2566.5 hours of measurement the obtained upper limit to the rate of bursts of amplitude >2% of the cosmic-ray intensity and time duration τ=1 s, is R≤7.9y-1 (90% c.l.). Assuming for γ-rays a differential energy spectrum S(E0 )≈E0 -2.5, the corresponding upper limit to the energy flux of γ-rays with energy >5 GeV in bursts of duration τ≤1 s is Φ<8.3·10-5erg cm-2. © 1992 Società Italiana di Fisica.
Editor: Kluwer Academic Publishers
Rights: fechado
Identifier DOI: 10.1007/BF02511744
Date Issue: 1992
Appears in Collections:Unicamp - Artigos e Outros Documentos

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