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X-ray Observations of Optically-Selected, Radio-Quiet Quasars I: The ASCA results
I. M. George, T. J. Turner, T. Yaqoob +5
We present the result of 27 ASCA observations of 26 radio-quiet quasars (RQQs) from the PG survey. All the RQQs were detected except 2 BALQSOs. We find the variability characterist…
BeppoSAX Observation of NGC 7582: Constraints on the X-ray absorber
T. J. Turner, G. C. Perola, F. Fiore +4
This paper presents a BeppoSAX observation of NGC 7582 made during 1998 November and an optical spectrum taken in 1998 October. The new X-ray data reveal a previously unknown hard…
A Highly Doppler Blueshifted Fe-K Emission Line in the High-Redshift QSO PKS 2149-306
T. Yaqoob, I. M. George, K. Nandra +3
We report the results from an \asca observation of the QSO PKS 2149-306 (z=2.345). We detect an emission line centered at keV in the quasar frame. Line emission at this e…
The properties of the relativistic iron K-line in NGC 3516
K. Nandra, I. M. George, R. F. Mushotzky +2
We present an analysis of the relativistic iron K-alpha line in the Seyfert 1 galaxy NGC 3516, based on a continuous, five-day ASCA observation. The broad profile which has been fo…
Akn 564: an unusual component in the X-ray spectra of NLSy1 galaxies
T. J. Turner, I. M. George, Hagai Netzer
We present an ASCA observation of the NLSy1 Ark 564. The X-ray light curve shows rapid variability, but no evidence for energy-dependence to these variations, within the 0.6 -- 10…
On X-ray Variability in Seyfert Galaxies
T. J. Turner, I. M. George, K. Nandra +1
This paper presents a quantification of the X-ray variability amplitude for 79 ASCA observations of 36 Seyfert 1 galaxies. We find that consideration of sources with the narrowest…