Abstract
Observations of Cygnus X-1 during the high-low transition of June–July 1980 reveal an intense flux between 0.5 and 1.5 keV. Although the intensity broadly follows the 1–12 keV flux through the transition, there is no evidence of variations in the shape of the energy spectrum. The implications of these results and derived limits on the minute-to-minute variability are discussed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
W.Cash et al, Ap.J.,238, L71, 1980
L.Chiappetti et al, submitted to Mon.Not.R.astr.Soc., 1980
M.Oda et al, Ap.Space Sci.,42, 223, 1976
M.Oda, IAU Circ., 3502
Y.Ogawara, Private communication, 1980.
W.Priedhorsky et al, Ap.J.,233, 350, 1979
K.S.Thorne and R.H.Price, Ap.J.,195, L101, 1975
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bedford, D.K., Carpenter, G.F., Goodall, C.V. et al. Ariel VI soft X-ray observations of Cygnus X-1. Space Sci Rev 30, 373–378 (1981). https://doi.org/10.1007/BF01246049
Issue Date:
DOI: https://doi.org/10.1007/BF01246049