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ASCA observations of type-2 Seyfert Galaxies. III. Orientation and X-ray Absorption
T. J. Turner, I. M. George, K. Nandra +1
We discuss the spectral properties of a sample of type-2 Seyfert galaxies based upon the analysis of \asca data. In this paper we consider the sources for which the X-ray spectra a…
ASCA Observations of Seyfert 1 galaxies: III. The Evidence for Absorption & Emission due to Photoionized Gas
I. M. George, T. J. Turner, Hagai Netzer +3
(Abridged) We present the results from a detailed analysis of the 0.6 - 10 keV spectra of 23 ASCA observations of 18 objects. We find that in most cases the underlying continuum ca…
Evidence for Absorption due to Highly-Ionized Gas in the Radio-quiet Quasar PG 1114+445
I. M. George, K. Nandra, A. Laor +4
We present results on the X-ray spectrum of the quasar PG 1114+445 from an ASCA observation performed in 1996 June, and a ROSAT observation performed 3 years earlier. We show good…
X-ray Lines and Gas Composition in NGC 1068
Hagai Netzer, J. Turner
Previous X-ray and ultraviolet spectroscopy suggested that the Fe/O abundance ratio in NGC 1068 may be abnormally high. We have measured some 15 X-ray lines in NGC 1068, to an accu…
ASCA observations of type-2 Seyfert galaxies: II. The Importance of X-ray Scattering and Reflection
T. J. Turner, I. M. George, K. Nandra +1
We discuss the importance of X-ray scattering and Compton reflection in type-2 Seyfert galaxies, based upon the analysis of ASCA observations of 25 such sources. Consideration of t…