105 citations · 598 across the 24 of their papers we have counts for
56 papers · 1 filter
Spectral variability in Cygnus X-3
L. Hjalmarsdotter, A. A. Zdziarski, A. Szostek +1
We model the broad-band X-ray spectrum of Cyg X-3 in all states displayed by this source as observed by the Rossi X-ray Timing Explorer. From our models, we derive for the first ti…
Orbital and superorbital variability and their coupling in X-ray binaries
Andrzej A. Zdziarski, Juri Poutanen, Askar Ibragimov +2
We review X-ray flux modulation from X-ray binaries on time scales corresponding to the orbital period and those at longer time scales (so called superorbital). Those modulations p…
A model of the TeV flare of Cygnus X-1: electron acceleration and extended pair cascades
A. A. Zdziarski, J. Malzac, W. Bednarek
We consider theoretical models of emission of TeV photons by Cyg X-1 during a flare discovered by the MAGIC detector. We study acceleration of electrons to energies sufficient for…
An intense state of hard X-ray emission of Cyg X-1 observed by INTEGRAL coincident with TeV measurements
J. Malzac, P. Lubinski, A. A. Zdziarski +3
We present INTEGRAL light curves and spectra of the black-hole binary Cyg X-1 during a bright event that occurred in 2006 September, and which was simultaneous with a detection at…
Damped harmonic oscillator interpretation of the soft-state power spectra of Cyg X-1
R. Misra, A. A. Zdziarski
We develop a model of an accretion disc in which the variability induced at a given radius is governed by a damped harmonic oscillator at the corresponding epicyclic frequency. Tha…
A classification of the X-ray and radio states of Cyg X-3 and their long-term correlations
A. Szostek, A. A. Zdziarski, M. L. McCollough
We present a detailed classification of the X-ray states of Cyg X-3 based on the spectral shape and a new classification of the radio states based on the long-term correlated behav…