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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…
X-Ray Spectroscopy and Atomic Data
Ehud Behar, Steven M. Kahn
The Laboratory Astrophysics program employing the Lawrence Livermore National Laboratory (LLNL) Electron Beam Ion Trap (EBIT) has been providing useful atomic data in support of th…
Soft X-ray Spectra of Seyfert 2 Galaxies
Masao Sako, Ali Kinkhabwala, Steven M. Kahn +6
High resolution spectroscopic observations of Seyfert galaxies with Chandra and XMM-Newton allows us to study the detailed ionization and thermal structures of the X-ray absorbing/…
Soft X-ray Spectroscopy of NGC 1068 with XMM-Newton RGS and Chandra LETGS
A. Kinkhabwala, M. Sako, E. Behar +7
We present high-resolution soft-X-ray spectra of the prototypical Seyfert 2 galaxy, NGC 1068, taken with XMM-Newton RGS and Chandra LETGS. Its rich emission-line spectrum is domina…
Soft X-ray Spectroscopy of Seyfert 2 Galaxies
A. Kinkhabwala, M. Sako, E. Behar +6
Soft X-ray spectroscopy of Seyfert 2 galaxies offers perhaps the best method to probe the possible connection between AGN activity and star formation. Obscuration of powerful radia…
Confronting atomic data with Fe L-shell spectra of stellar coronae
E. Behar, J. Cottam, J. R. Peterson +5
It is common to suggest the uncertainties in the atomic data for explaining difficulties that arise in interpreting astrophysical x-ray spectra. The atomic data for the Fe L-shell…