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arXiv:astro-ph/9601009 (astro-ph)
[Submitted on 3 Jan 1996 (v1), last revised 16 Jan 1996 (this version, v2)]

Title:Atomic Data for Astrophysics. II. New Analytic Fits for Photoionization Cross Sections of Atoms and Ions

Authors:D. A. Verner, G. J. Ferland, K. T. Korista (University of Kentucky), D. G. Yakovlev (Ioffe Institute)
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Abstract: We present a complete set of analytic fits to the non-relativistic 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.
Comments: 24 pages including Postscript figures and tables, uses this http URL, accepted for publication in Astrophysical Journal. Misprint in Eq.(1) is corrected
Subjects: Astrophysics (astro-ph); Atomic Physics (physics.atom-ph)
Cite as: arXiv:astro-ph/9601009
  (or arXiv:astro-ph/9601009v2 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/9601009
Journal reference: Astrophys.J.465:487,1996
Related DOI: https://doi.org/10.1086/177435

Submission history

From: Dima Verner [view email]
[v1] Wed, 3 Jan 1996 19:42:23 UTC (160 KB)
[v2] Tue, 16 Jan 1996 22:45:54 UTC (160 KB)
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