Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...57...43h&link_type=abstract
Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 57, July 1984, p. 43-49. Research sponsored by the Polska Ak
Astronomy and Astrophysics
Astrophysics
19
Atomic Energy Levels, Atomic Weights, Cosmic Plasma, Ionization Potentials, Iron, Astronomical Catalogs, Atomic Excitations, Quantum Mechanics
Scientific paper
Numerical values of the atomic partition functions (APF), U(r), for Fe I, Fe II and Fe III are given for the temperature range 2000-40000 K, and for various lowering of the ionization energy (in the range 0.01 to 2.00 eV). In the calculations of the APF all quantum energy levels have been taken into account, including those lying above the normal ionization energy. The values of APF are larger than those published previously; however, their ratios U(r+1)/U(r) are smaller.
Grabowski B.
Halenka J.
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