Abstract
We present a complete set of analytic fits to the nonrelativistic photoionization cross sections for the ground states of atoms and ions of elements from H through Si, and S, Ar, Ca, and Fe. Near the ionization thresholds, the fits are based on the Opacity Project theoretical cross sections interpolated and smoothed over resonances. At higher energies, the fits reproduce calculated Hartree-Dirac-Slater photoionization cross sections.
Original language | English |
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Pages (from-to) | 487-498 |
Number of pages | 12 |
Journal | Astrophysical Journal |
Volume | 465 |
Issue number | 1 PART I |
DOIs | |
State | Published - 1996 |
Keywords
- Atomic data
- Atomic processes
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Space and Planetary Science