Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Modeling of iron K lines: radiative and Auger decay data for Fe II-Fe IX   A detailed analysis of the radiative and Auger de-excitation channels of
K-shell vacancy states in Fe II-Fe IX has been carried out. Level energies,
wavelengths, A-values, Auger rates and fluorescence yields have been calculated
for the lowest fine-structure levels populated by photoionization of the ground
state of the parent ion. Different branching ratios, namely
K-alpha_2/K-alpha_1, K-beta/K-alpha, KLM/KLL, KMM/KLL, and the total K-shell
fluorescence yields, omega_K, obtained in the present work have been compared
with other theoretical data and solid-state measurements, finding good general
agreement with the latter. The K-alpha_2/K-alpha_1 ratio is found to be
sensitive to the excitation mechanism. From these comparisons it has been
possible to estimate an accuracy of ~10% for the present transition
probabilities.

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The categories of this paper are: hep-th
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The categories of this paper are: hep-lat
31
The categories of this paper are: ao-sci
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
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The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
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The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
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The categories of this paper are: q-bio