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The Galactic Black Holes Cyg X-1, GX 339-4, and 4U 1957+11: In Transition and at High Resolution
Michael A. Nowak
I review here some of the open questions regarding the geometry and emission mechanisms of galactic black hole candidates. For hard states, I concentrate on the perspective of ``di…
Assessing the X-ray Contribution from Jets in X-ray Binaries
S. Markoff, M. Nowak, S. Corbel +2
Astrophysical jets exist from the stellar scale up to AGN, and seem to share common features particularly in the radio. But while AGN jets are known to emit X-rays, the situation f…
State Transitions in Black Hole Candidates
Michael A. Nowak
As described in the review by Marek Abramowicz (these proceedings), accretion theory is at something of a crossroads. Many theoretical descriptions of observations have centered on…
Temporal Evolution of X-ray Lags in Cygnus X-1
K. Pottschmidt, J. Wilms, M. A. Nowak +3
We present the long term evolution of the frequency-dependent X-ray time lags of the black hole candidate Cygnus X-1 as measured in 1996 and 1998 with the Rossi X-ray Timing Explor…
Coupling of the X-ray and radio emission in the black hole candidate a nd compact jet source GX 339-4
S. Corbel, R. P. Fender, A. K. Tzioumis +4
We report the results of a long-term campaign of radio, soft- and hard- X-ray observations of the galactic black hole candidate GX 339-4. In the Low-Hard X-ray state the system dis…
Stable Oscillations of Black Hole Accretion Discs
Michael A. Nowak, Dana E. Lehr
The study of stable accretion disc oscillations relevant to black hole candidate (BHC) systems dates back over twenty years. Prior work has focused on both unstable and (potentiall…