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astro-ph2008
Catching Up on State Transitions in Cygnus X-1
Moritz Boeck, Manfred Hanke, Joern Wilms +6
In 2005 February we observed Cygnus X-1 over a period of 10 days quasi-continuously with the Rossi X-ray Timing Explorer and the Ryle telescope. We present the results of the spect…
astro-ph2008
Multi-Satellite Observations of Cygnus X-1 to Study the Focused Wind and Absorption Dips
Manfred Hanke, Joern Wilms, Moritz Boeck +4
High-mass X-ray binary systems are powered by the stellar wind of their donor stars. The X-ray state of Cygnus X-1 is correlated with the properties of the wind which defines the e…