211 citations · 509 across the 3 of their papers we have counts for
4 papers
A population of gamma-ray emitting globular clusters seen with the Fermi Large Area Telescope
The Fermi LAT collaboration
Globular clusters with their large populations of millisecond pulsars (MSPs) are believed to be potential emitters of high-energy gamma-ray emission. Our goal is to constrain the m…
Observations of Seyferts by OSSE and parameters of their X-ray/gamma-ray sources
Andrzej A. Zdziarski, Juri Poutanen, W. Neil Johnson
We present a summary of spectra of Seyfert galaxies observed by the OSSE detector aboard Compton Gamma Ray Observatory. We obtain average spectra of Seyferts of type 1 and 2, and f…
Broad-band X-ray/gamma-ray spectra and binary parameters of GX 339-4 and their astrophysical implications
Andrzej A. Zdziarski, Juri Poutanen, Joanna Mikolajewska +3
We present X-ray/gamma-ray spectra of the binary GX 339-4 observed in the hard state simultaneously by Ginga and CGRO OSSE during an outburst in 1991 September. The Ginga spectra a…
Broad-band gamma-ray and X-ray spectra of NGC 4151 and their implications for physical processes and geometry
A. A. Zdziarski, W. N. Johnson, P. Magdziarz
We study gamma-ray observations of NGC 4151 by GRO/OSSE contemporaneous with X-ray observations by ROSAT and Ginga in 1991 June and with ASCA in 1993 May. The spectra are well mode…