Photoionization of Fe XV
- 1 December 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 60 (6) , R4221-R4224
- https://doi.org/10.1103/physreva.60.r4221
Abstract
Relativistic and resonance effects in the photoionization of Mg-like Fe XV are investigated using the Breit-Pauli R-matrix method at near-threshold and intermediate energies, complemented by the relativistic random-phase approximation and multichannel quantum-defect theory in the energy region up to the L-shell ionization thresholds. The cross sections exhibit extensive resonance structures that considerably enhance the effective photoionization of Fe XV. These results should be of general interest in photoionization modeling of x-ray sources observed by space observatories.Keywords
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