J/AcA/52/195 Partition functions of FeI - FeX (Halenka+, 2002)
Tables of the Partition functions for Iron, Fe I - Fe X.
Halenka J., Madej J.
<Acta Astron. 52, 195-202 (2002)>
=2002AcA....52..195H 2002AcA....52..195H (SIMBAD/NED BibCode)
ADC_Keywords: Atomic physics
Keywords: atomic data - atomic processes - stars: atmospheres
Abstract:
The authors calculated atomic partition functions (APF) for iron ions,
FeI-FeX, using recent compilations of atomic energy levels.
Observed sets of atomic energy levels were filled through levels
predicted in quantum mechanics and autoionization levels. Therefore,
our APFs include levels above those tabulated. APFs are functions of
temperature T and the lowering of ionisation energy (LIE). LIE is the
result of emitter-plasma interactions in gas that cause dissolution of
the highest energy levels and is applied here in a cut-off
approximation.
Description:
APFs are collected in 10 tables, each table for a single ion FeI,
FeII, ..., FeX. Values of APFs (decimal logarithms) are given in a
wide range of temperatures, 103-106K, and lowering of the
ionisation energy, 0.001eV<LIE<5.0eV.
File Summary:
--------------------------------------------------------------------------------
FileName Lrecl Records Explanations
--------------------------------------------------------------------------------
ReadMe 80 . This file
table1.dat 89 62 Partition function of Fe I
table2.dat 89 62 Partition function of Fe II
table3.dat 89 62 Partition function of Fe III
table4.dat 89 62 Partition function of Fe IV
table5.dat 89 62 Partition function of Fe V
table6.dat 89 62 Partition function of Fe VI
table7.dat 89 62 Partition function of Fe VII
table8.dat 89 62 Partition function of Fe VIII
table9.dat 89 62 Partition function of Fe IX
table10.dat 89 62 Partition function of Fe X
--------------------------------------------------------------------------------
See also:
J/AcA/51/347 : Partition functions of NiI-NiX (Halenka+, 2001)
Byte-by-byte Description of file: table*.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
2- 8 I7 K T Temperature
9- 17 F9.4 [-] 0.001 Log10 of the partition function, LIE=0.001eV (1)
18- 26 F9.4 [-] 0.003 Log10 of the partition function, LIE=0.003eV (1)
27- 35 F9.4 [-] 0.010 Log10 of the partition function, LIE=0.010eV (1)
36- 44 F9.4 [-] 0.030 Log10 of the partition function, LIE=0.030eV (1)
45- 53 F9.4 [-] 0.100 Log10 of the partition function, LIE=0.100eV (1)
54- 62 F9.4 [-] 0.300 Log10 of the partition function, LIE=0.300eV (1)
63- 71 F9.4 [-] 1.000 Log10 of the partition function, LIE=1.000eV (1)
72- 80 F9.4 [-] 3.000 Log10 of the partition function, LIE=3.000eV (1)
81- 89 F9.4 [-] 5.000 Log10 of the partition function, LIE=5.000eV (1)
--------------------------------------------------------------------------------
Note (1): LIE denotes the lowering of the ionizaton energy in electronovolts.
--------------------------------------------------------------------------------
Acknowledgements:
Jerzy Madej, jm(at)astrouw.edu.pl, University of Warsaw
(End) Patricia Vannier [CDS] 21-Jan-2019