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 · Wed Mar 01 00:00:00 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]

---

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), Vol. 41:2; ISSN 0092-640X
• Country of Publication: United States
• Language: English

Related Subjects

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