We report on the latest results from an analysis of data on Cygnus X‐1 as collected by the COMPTEL experiment on the Compton Gamma‐Ray Observatory (CGRO). COMPTEL detected the source around 1 MeV during two separate one‐week observations in 1991. The measured flux levels indicate variability on a time scale of weeks. The results also indicate flux levels which are well below the levels reported by some investigators for an excess of emission in the energy range ≥1 MeV.
AIP Conference Proceedings
Digital Object Identifier (DOI)
COMPTEL observations of Cygnus X‐1 McConnell, M. and Connors, A. and Forrest, D. and Ryan, J. and Collmar, W. and Diehl, R. and Schönfelder, V. and Steinle, H. and Strong, A. and Bloemen, H. and van Dijk, R. and Hermsen, W. and Kuiper, L. and Swanenburg, B. and Winkler, C., AIP Conference Proceedings, 280, 335-339 (1993), DOI:http://dx.doi.org/10.1063/1.44142
© 1993 American Institute of Physics