86 citations · 217 across the 9 of their papers we have counts for
9 papers
Accurate Determination of Chemical Abundances near a Supermassive Black Hole
The XRISM collaboration
The metal abundances in galactic nuclei carry key information on the history of star formation and mass transfer in central regions of galaxies. X-ray fluorescence analysis is a un…
Plasma environment effects on K lines of astrophysical interest. II. Ionization potentials, K thresholds, radiative rates and Auger widths in Ne- through He-like iron ions (Fe xvii - Fe xxv)
J. Deprince, M. A. Bautista, S. Fritzsche +5
Aims. In the context of accretion disks around black holes, we estimate plasma-environment effects on the atomic parameters associated with the decay of K-vacancy states in highly…
Plasma environment effects on K lines of astrophysical interest I. Atomic structure, radiative rates and Auger widths of oxygen ions
Deprince J., Bautista M. A., Fritzsche S. +5
Aims. In the context of black-hole accretion disks, the main goal of the present study is to estimate the plasma environment effects on the atomic structure and radiative parameter…
The Problem of the High Iron Abundance in Accretion Disks around Black Holes
J. A. García, T. R. Kallman, M. Bautista +4
In most accreting black-hole systems the copious X-rays commonly observed from the inner-most regions are accompanied by a reflection spectrum. The latter is the signature of energ…
K-Shell Photoabsorption of Magnesium Ions
M. F. Hasoglu, Sh. A. Abdel-Naby, E. Gatuzz +4
X-ray photoabsorption cross sections have been computed for all magnesium ions using the -matrix method. A comparison with the other available data for Mg II-Mg X shows good qua…
Nitrogen K-shell photoabsorption
J. Garcia, T. R. Kallman, M. Witthoeft +6
Reliable atomic data have been computed for the spectral modeling of the nitrogen K lines, which may lead to useful astrophysical diagnostics. Data sets comprise valence and K-vaca…