Computed oscillator strengths and energy levels for Fe III, Fe IV, Fe V, and Fe VI with calculated wavelengths and wavelengths derived from established data

Journal Article · Tue Feb 28 23:00:00 EST 1989 · Atomic Data and Nuclear Data Tables; (USA)

DOI:https://doi.org/10.1016/0092-640X(89)90019-3· OSTI ID:5731979

Fawcett, B C ^[1]

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1. Rutherford Appleton Laboratory, Oxfordshire (England)

Calculated weighted oscillator strengths are tabulated for spectral lines of Fe III, Fe IV, Fe V, and Fe VI. The lines belong to transition arrays 3d{sup 6}-3d{sup 5}4p and 3d{sup 5}4s-3d{sup 5}4p in Fe III, 3d{sup 5}-3d{sup 4}4p and 3d{sup 4}4s-3d{sup 4}4p in Fe IV, 3d{sup 4}-3d{sup 3}4p and 3d{sup 3}4s-3d{sup 3}4p in Fe V, and 3d{sup 3}-3d{sup 2}4p and 3d{sup 2}4s-3d{sup 2}4p in Fe VI. For the calculations, Slater parameters are optimized on the basis of minimizing the discrepancies between observed and computed wavelengths. Configuration interaction was included among the 3d{sup n}, 3d{sup n{minus}1}4s, 3d{sup n{minus}2}4s{sup 2}, 3d{sup n{minus}1}4d, and 3d{sup n{minus}1}5s even configurations and among the 3d{sup n{minus}1}4p, 3d{sup n{minus}2}4s4p, and 3d{sup n{minus}1}5p odd configurations, with 3p{sup 5}3d{sup n+1} added for Fe VI. Calculated wavelengths are compared with observational data, and the compositions of energy levels are listed. This completes a series of similar computations for these complex configurations covering Fe I to Fe VI.

• OSTI ID: 5731979
• Journal Information: Atomic Data and Nuclear Data Tables; (USA), Journal Name: Atomic Data and Nuclear Data Tables; (USA) Vol. 41:2; ISSN 0092-640X; ISSN ADNDA
• Country of Publication: United States
• Language: English

Related Subjects

640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
CHARGED PARTICLES
COMPARATIVE EVALUATIONS
COMPILED DATA
CONFIGURATION INTERACTION
DATA
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
INFORMATION
IONS
IRON IONS
MULTICHARGED IONS
NUMERICAL DATA
OSCILLATOR STRENGTHS
SLATER METHOD
TABLES
WAVELENGTHS