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The Ionized Gas and Nuclear Environment in NGC 3783. IV. Variability and Modeling of the 900 ks CHANDRA Spectrum
H. Netzer, S. Kaspi, E. Behar +12
We present a detailed spectral analysis of the data obtained from NGC 3783 during the period 2000-2001 using Chandra. This analysis leads us to the following results. 1) NGC 3783 f…
A Long Look at NGC 3783 with the XMM-Newton Reflection Grating Spectrometers
Ehud Behar, Andrew P. Rasmussen, Alexander J. Blustin +5
A long 280 ks observation of the Seyfert 1 galaxy NGC 3783 with XMM-Newton is reported. We focus on the oxygen line complex between 17 and 24 A as measured with the RGS spectromete…
Chandra LETGS and XMM-Newton observations of NGC 4593
K. C. Steenbrugge, J. S. Kaastra, A. J. Blustin +6
In this paper, we analyze spectra of the Seyfert 1 galaxy NGC 4593 obtained with the Chandra Low Energy Transmission Grating Spectrometer (LETGS), the Reflection Grating Spectromet…
Atomic Calculations and Spectral Models of X-ray Absorption and Emission Features From Astrophysical Photoionized Plasmas
A. Kinkhabwala, E. Behar, M. Sako +3
We present a detailed model of the discrete X-ray spectroscopic features expected from steady-state, low-density photoionized plasmas. We apply the Flexible Atomic Code (FAC) to ca…
Assessment of the Fluorescence and Auger Data Base used in Plasma Modeling
T. W. Gorczyca, C. N. Kodituwakku, K. T. Korista +5
We have investigated the accuracy of the 1s-vacancy fluorescence data base of Kaastra & Mewe (1993, A&AS, 97, 443) resulting from the initial atomic physics calculations and the su…