163 citations · 658 across the 42 of their papers we have counts for
5 papers · 1 filter
Relativistic reflection in NGC 4151
Michal Szanecki, Andrzej Niedzwiecki, Andrzej A. Zdziarski
We investigate the X-ray spectrum of the Seyfert galaxy NGC 4151 using the simultaneous Suzaku/NuSTAR observation and flux-resolved INTEGRAL spectra supplemented by Suzaku and XMM…
An analysis method for data taken by Imaging Air Cherenkov Telescopes at very high energies under the presence of clouds
Dorota Sobczyńska, Katarzyna Adamczyk, Julian Sitarek +1
The effective observation time of Imaging Air Cherenkov Telescopes (IACTs) plays an important role in the detection of gamma-ray sources, especially when the expected flux is low.…
Geometry of the X-ray source 1H 0707-495
Michal Szanecki, Andrzej Niedzwiecki, Chris Done +3
We investigate constraints for the size and location of the X-ray source in 1H 0707-495 determined from the shape of the relativistically smeared reflection from the accretion disc…
Impact of the returning radiation on the analysis of the reflection spectra of black holes
Shafqat Riaz, Michal Szanecki, Andrzej Niedzwiecki +2
A fraction of the electromagnetic radiation emitted from the surface of a geometrically thin and optically thick accretion disk of a black hole returns to the disk because of the s…
Does the disk in the hard state of XTE J1752-223 extend to the innermost stable circular orbit?
Andrzej Zdziarski, Barbara De Marco, Michal Szanecki +2
The accreting black-hole binary XTE J1752--223 was observed in a stable hard state for 25 d by RXTE, yielding a 3--140 keV spectrum of unprecedented statistical quality. Its publis…