Photoionization of Fe XV

Details Photoionization of Fe XV Photoionization of Fe XV

1999-10-20

arxiv.org/abs/astro-ph/9910374v1

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figs., Phys. Rev. A (Rapid Communications, In Press), X-ray Photoionization, Inner-shell Resonant Processes

Scientific paper

10.1103/PhysRevA.60.R4221

Relativistic and resonance effects in the photoionization of Mg-like Fe~XV are investigated using the Breit-Pauli R-matrix Method (BPRM) at near-threshold and intermediate energies, complemented by the Relativistic Random Phase Approximation (RRPA) and multi-channel 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.

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