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TeV gamma-ray emission from binaries: 2129+47XR and Cygnus X-3

V.G. Sinitsyna T.P. Arsov A.Y. Alaverdian S.S. Borisov R.M. Mirzafatikhov F.I. Musin S.I. Nikolsky V.Y. Sinitsyna G.F. Platonov J.-N. Capdevielle 1
1 APC - AHE - APC - Astrophysique des Hautes Energies
APC (UMR_7164) - AstroParticule et Cosmologie, Dipartimento di Astronomia, Universita degli Studi di Bologna
Abstract : The new galactic gamma-source (neutron star) 2129+47XR is detected at energy >0.8 TeV with flux (0.19±0.09)x10^-12 cm^2s^-1 and indices of the integral spectra are kγ=−1.12±0.06, kON=−1.28±0.07 and kOff=−1.73±0.07. The results of ten-year observation of galactic source Cygnus X-3 by SHALON mirror Cherenkov telescope are discussed. The gamma -quantum spectra and images of the sources are presented. The Cygnus X-3 binary, known for more than 20 years as a source with variable intensity have been regularly observed since a 1995. The the increase of gamma-quantum flux was observed in 1997 and 2003 years.
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Submitted on : Monday, February 25, 2008 - 11:33:34 AM
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V.G. Sinitsyna, T.P. Arsov, A.Y. Alaverdian, S.S. Borisov, R.M. Mirzafatikhov, et al.. TeV gamma-ray emission from binaries: 2129+47XR and Cygnus X-3. XIV International Symposium on Very High Energy Cosmic Ray Interactions (ISVHECRI2006), Aug 2006, Weihai, China. pp.544-547, ⟨10.1016/j.nuclphysbps.2007.11.067⟩. ⟨in2p3-00258768⟩



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