J/A+A/410/359 Radiative and Auger decay for Fe II-Fe IX (Palmeri+, 2003)
Modeling of the iron K lines: radiative and Auger decay data for Fe II-Fe IX.
Palmeri P., Mendoza C., Kallman T.R., Bautista M.A., Melendez M.
<Astron. Astrophys. 410, 359 (2003)>
=2003A&A...410..359P 2003A&A...410..359P
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes - techniques: spectroscopic
Abstract:
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-alpha2/K-alpha1, 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-alpha2/K-alpha1 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.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table3.dat 52 295 Level list
table4.dat 35 396 Line list
--------------------------------------------------------------------------------
See also:
J/A+A/387/1146 : M1 and E2 emission lines in K-like ions (Charro+, 2002)
J/A+A/414/377 : FeX-FeXVII fine-structure K-vacancy levels (Mendoza+, 2004)
Byte-by-byte Description of file: table3.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ne Number of electrons
4- 6 I3 --- i Index
8- 27 A20 --- State Configuration designation
29- 34 F6.4 keV E Energy
36- 43 E8.2 s-1 Ar Radiative width
45- 52 E8.2 s-1 Aa Auger width
--------------------------------------------------------------------------------
Byte-by-byte Description of file: table4.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 2 I2 --- Ne Number of electrons
4- 6 I3 --- k Index of the upper level
8- 10 I3 --- i Index of the lower level
12- 17 F6.4 0.1nm Lambda Wavelength
19- 26 E8.2 s-1 Ar Transition probability
28- 35 E8.2 --- Omega Fluorescence yield
--------------------------------------------------------------------------------
Acknowledgements: Patrick Palmeri
(End) Patrick Palmeri [NASA/GSFC], Patricia Bauer [CDS] 03-Oct-2003