I/xxx Decay properties of K-vacancy states in Fe X-Fe XVII (Mendoza+ 2003) =============================================================================== Decay properties of K-vacancy states in Fe X-Fe XVII Mendoza C., Kallman T.R., Bautista M.A., Palmeri P. =2003A&A...x...x =============================================================================== Keywords: atomic data-atomic processes-X-rays: spectroscopy Abstract: We report extensive calculations of the decay properties of fine-structure K-vacancy levels in Fe X-Fe XVII. A large set of level energies, wavelengths, radiative and Auger rates, and fluorescence yields has been computed using three different standard atomic codes, namely Cowan's HFR, AUTOSTRUCTURE and the Breit-Pauli R-matrix package. This multi-code approach is used to the study the effects of core relaxation, configuration interaction and the Breit interaction, and enables the estimate of statistical accuracy ratings. The K-alpha and KLL Auger widths have been found to be nearly independent of both the outer-electron configuration and electron occupancy keeping a constant ratio of 1.53+/-0.06. By comparing with previous theoretical and measured wavelengths, the accuracy of the present set is determined to be within 2 mA. Also, the good agreement found between the different radiative and Auger data sets that have been computed allow us to propose with confidence an accuracy rating of 20% for the line fluorescence yields greater than 0.01. Emission and absorption spectral features are predicted finding good correlation with measurements in both laboratory and astrophysical plasmas. File Summary: ------------------------------------------------------------------------------- Filename Lrecl Records Explanations ------------------------------------------------------------------------------- ReadMe 80 . This file table3.dat 52 251 Table 3: level list table4.dat 35 876 Table 4: line list ------------------------------------------------------------------------------- Byte-by-byte Description of file: table3.dat ------------------------------------------------------------------------------- Bytes Format Units Label Explanations ------------------------------------------------------------------------------- 1- 2 I2 ___ N Number of electrons 4- 6 I3 ___ i Index 8- 27 A20 ___ State Designation (':' questionable due to mixing) 29- 34 F6.3 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 ___ N 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 ------------------------------------------------------------------------------- Author's address: Patrick Palmeri =============================================================================== (End) Patrick Palmeri [NASA/GSFC] 17-Jun-2003