On the Z-Dependence of Lithium like Photoionization Cross Sections

Details On the Z-Dependence of Lithium like Photoionization Cross Sections On the Z-Dependence of Lithium like Photoionization Cross Sections

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...288..831t&link_type=abstract

Astrophysical Journal, Vol.288, NO. 2/JAN15, P. 831, 1985

Astronomy and Astrophysics

Astrophysics

3

Scientific paper

The isoelectronic extrapolation procedure proposed by Pradhan is shown to be invalid since it is based on a paper by Reilman and Manson which contains a printing error. Likewise, the rate coefficients presented by Woods, Shull, and Sarazin for radiative recombination to form Fe+22 and Fe+23 are incorrect. A simple Zdependent formula is given which reproduces to within 2% the threshold photoionization cross-sections of Reilman and Manson for the lithium sequence, and a modified form of Pradhan's formula for the radiative recombination rate coefficient is thereby obtained.

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