Description
We probed models of disc truncation in the hard spectral state of the black hole X-ray binary GX 339-4. We tested a large number of different spectral models of disc reflection and its relativistic broadening. Our statistically best-fit model requires the disc to be truncated at a radius larger than or equal to about two ISCO radii.
Finally, I will present preliminary results from the study of the X-ray spectral-timing properties of GX 339-4 at the end of the outburst. Our aim is to constrain the origin of the soft component observed in the hard state of the source.
Primary author
Marta Dziełak
(Nicolaus Copernicus Astronomical Center PAS)
Co-authors
Prof.
Andrzej Zdziarski
(Nicolaus Copernicus Astronomical Center PAS)
Dr
Barbara De Marco
(Nicolaus Copernicus Astronomical Center PAS)
