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COS-B: The highlights
Bennett, Kevin
The COS-B satellite operated from August 1975 until April 1982 during which time an extensive survey of the Galaxy was made in the energy range 50 MeV to 5 Gev. The Caravane Collaboration built the gamma-ray telescope and performed the bulk of the scientific data reduction. Since the data are now available to the Astrophysics community at large, s…
Cygnus X-3: The recent X-ray period measurements and gamma-ray astronomy
van der Klis, M.
Our knowledge about the nature of Cyg X-3 is briefly reviewed, with particular emphasis on the lack of observational basis for some common assumptions about the object. Some consequences for gamma-ray astronomy are considered of the X-ray period measurements with EXOSAT, which indicate the presence of a large second period-derivative. If the orbit…
TeV and MeV gamma-rays from binary systems
Carollo, C. M.; Raubenheimer, B. C.; Buccheri, R. +4 more
We report the third consecutive detection of Vela X-1 as a source of VHE gamma-rays ( Eγ > 1 TeV) with a 99.92 % significance. The pulsed emission shows a broad sinusoidal light curve at a period similar to the X-ray value, with a large negative period derivative over the 60 days of observation. We also report our observations on Cen…