Very high energy gamma-quanta 1–65 TeV from the Cygnus X-3 binary

Abstract : The results of almost ten-year observation of Cygnus X-3 point source by SHALON mirror Cherenkov telescope are presented. The galactic source Cygnus X-3, known for more than 10 years as a source with variable intensity < 10−11 − 5 • 10−12cm−2s−1, was regularly observed since 1995 with average gamma-quantum flux F(EO > 0.8TeV ) = (6.8 ± 0.7) • 10−13cm−2s−1. The flux in 2003 was (1.79 ± 0.33) • 10−12cm−2s−1. Earlier, in 1997, an increase in the flux was also observed (1.2 ± 0.5) • 10−12cm−2s−1. The limits on gamma-rays from Cygnus X-3, the source that results stimulated the construction of many new detectors are presented. These upper limits and SHALON fluxes are now more than a factor 100 less than the fluxes originally reported.
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Communication dans un congrès
13th International Symposium on Very High-Energy Cosmic Ray Interactions, Sep 2004, Pylos, Greece. 151, Issue 1, pp.489-492, 2006, <10.1016/j.nuclphysbps.2005.07.086>


http://hal.in2p3.fr/in2p3-00025668
Contributeur : Simone Lantz <>
Soumis le : mercredi 22 février 2006 - 15:14:53
Dernière modification le : mardi 11 octobre 2016 - 13:27:20

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V.G. Sinitsyna, T.P. Arsov, A.Y. Alaverdian, S.S. Borisov, F.I. Musin, et al.. Very high energy gamma-quanta 1–65 TeV from the Cygnus X-3 binary. 13th International Symposium on Very High-Energy Cosmic Ray Interactions, Sep 2004, Pylos, Greece. 151, Issue 1, pp.489-492, 2006, <10.1016/j.nuclphysbps.2005.07.086>. <in2p3-00025668>

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