Journal
ASTRONOMY & ASTROPHYSICS
Volume 624, Issue -, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201935075
Keywords
black hole physics; plasmas; atomic data; X-rays: general
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Funding
- NASA Astrophysics Research and Analysis Program [80NSSC17K0345]
- Alexander von Humboldt Foundation
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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 parameters associated with the K-vacancy states in ions of the oxygen isonuclear sequence. Methods. We used a time-averaged Debye-Htickel potential for both the electron-nucleus and the electron-electron interactions implemented in the fully relativistic multiconfiguration Dirac-Rock (MCDF) method. Results. Modified ionization potentials, K thresholds, Auger widths, and radiative transition wavelengths and rates are reported for O I-O VII in plasma environments with electron temperature and density ranges 10(5)-10(7) K and 10(18)-10(22) CM-3.
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