EAS-TOP: Results of the gamma-ray astronomy at 1014 eV

M. Aglietta, B. Alessandro, F. Arneodo, G. Badino, L. Bergamasco, C. Castagnoli, A. Castellina, C. Cattadori, A. Chiavassa, G. Cini, B. D'Ettorre Piazzoli, W. Fulgione, P. Galeotti, P. L. Ghia, G. Mannocchi, C. Morello, G. Navarra, L. Riccati, O. Saavedra, G. C. TrincheroP. Vallania, S. Vernetto

Research output: Contribution to journalArticlepeer-review


The EAS-TOP Extensive Air Shower array, on top of the under-ground Gran Sasso Laboratory, is fully operating as a γ-ray astronomy observatory since the beginning of 1989. After showing the measured angular resolution of the detector, we present the results obtained from the analysis of 280 days of measurements in 1989-1990, with the purpose of investigating possible emission (d.c. and sporadic) from the candidate sources in the Northern hemisphere at an energy, >200 TeV.

Original languageEnglish (US)
Pages (from-to)723-733
Number of pages11
JournalIl Nuovo Cimento C
Issue number5
StatePublished - Sep 1992


  • Cosmic-ray interactions with the Earth

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Physics and Astronomy (miscellaneous)


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