COMPTEL observations of Cygnus X‐1

Authors

Mark L. McConnell, University of New Hampshire - Main CampusFollow
A Connors, University of New Hampshire - Main CampusFollow
D J. Forrest, University of New Hampshire - Main Campus
James M. Ryan, University of New HampshireFollow
W Collmar, Max-Planck-Institut für extraterrestriche Physik
R Diehl, Max-Planck-Institut für extraterrestriche PhysikFollow
V Schonfelder, Max-Planck-Institut für extraterrestrische PhysikFollow
H Steinle, Max-Planck-Institut für extraterrestriche PhysikFollow
A W. Strong, Max-Planck-Institut für extraterrestriche Physik
H Bloemen, Space Research Organization of the Netherlands
R Van Dijk, University of Amsterdam
W Hermsen, Space Research Organization of the Netherlands (SRON)
L Kuiper, Space Research Organization of the Netherlands (SRON)
B Swanenburg, SRON
C Winkler, ESTECFollow

Abstract

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.

Department

Space Science Center, Physics

Publication Date

1993

Journal Title

AIP Conference Proceedings

Publisher

AIP Publishing

Digital Object Identifier (DOI)

10.1063/1.44142

Document Type

Conference Proceeding

Recommended Citation

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

Rights

© 1993 American Institute of Physics