COS-B X-ray observations of Cygnus X-3.
Manzo, G.; Molteni, D.; Robba, N. R.; Bonnet-Bidaud, J. M.; Ilovaisky, S.
France, Italy
Abstract
The ESA COS-B satellite has observed the Cygnus region in the energy range (2-12 keV), between 1975 November 28.42 and December 24.26. The Cygnus X-3 4.8 h modulation is detected. The source was in a low state with a positive evidence for an increase in flux during the month of observation.