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Physical Conditions in the Narrow-Line Region of Markarian 3. I. Observational Results
Nicholas R. Collins, Steven B. Kraemer, D. Michael Crenshaw +3
We use Hubble Space Telescope/Space Telescope Imaging Spectrograph (HST/STIS) longslit low-resolution spectroscopy from 1150A to 10,300A to study the physical conditions in the nar…
Complex X-ray Absorption and the Fe Kalpha Profile in NGC 3516
T. J. Turner, S. B. Kraemer, I. M. George +2
We present data from simultaneous Chandra, XMM-Newton and BeppoSAX observations of the Seyfert 1 galaxy NGC 3516, taken during 2001 April and Nov. We have investigated the nature o…
Simultaneous X-ray and Ultraviolet spectroscopy of the Seyfert galaxy NGC 5548. III. X-ray time variability
J. S. Kaastra, K. C. Steenbrugge, D. M. Crenshaw +8
The Seyfert 1 galaxy NGC 5548 was observed for a week by Chandra using both the HETGS and LETGS spectrometers. In this paper we study the time variability of the continuum radiatio…
On the Relationship Between the Optical Emission-Line and X-ray Luminosities in Seyfert 1 Galaxies
S. B. Kraemer, I. M. George, D. M. Crenshaw +1
We have explored the relationship between the [O III] 5007 and the 2--10 keV luminosities for a sample of Broad- and Narrow-Line Seyfert 1 galaxies (BLSy1 and NLSy1, respectivel…