VHE gamma-rays with energies above 1014 eV observed at Mt.Chacaltaya

N. Inoue, T. Matano, K. Mori, K. Hashimoto, K. Honda, N. Kawasumi, I. Tsushima, Z. Aliaga, N. J. Martinic, A. reguerin, R. Ticona, J. Zapata

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Observation to detect VHE gamma-ray emissions has been carried out at Mt.Chacaltaya with the SYS air shower array since Feb.1986. A significant excess of hadron-less air showers with energies above 1014eV from the direction of Scorpius X-1 has been found during the last fifteen days in May 1986. However, no excess as the continuous emissions could be observed for several X-ray binary objects in the southern hemisphere. Small abundance of hadron-less air showers could be seen from the diffused region of galactic centre.

Original languageEnglish
Pages (from-to)121-128
Number of pages8
JournalNuclear and Particle Physics Proceedings
Issue number2
StatePublished - Apr 1990


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