Dielectronic recombination of highly ionized iron
Journal Article
·
· Phys. Rev. A; (United States)
Dielectronic recombination of the iron ions Fe/sup 15+/, Fe/sup 23+/, and Fe/sup 25+/ has been studied in the isolated-resonance, distorted-wave approximation. The cross-section calculations include the dielec- tronic transitions associated with the 3s..-->..3l and 3s..-->..4l excitations in Fe/sup 15+/, the 2s..-->..2p and 2s..-->..3l excitations in Fe/sup 23+/, and the 1s..-->..2l excitations in Fe/sup 25+/. The effects of external electric fields have been included by employing intermediate-coupled, field-mixed eigenvectors for the doubly excited Rydberg states, determined by diagonalizing a Hamiltonian matrix which includes the internal electrostatic and spin-orbit terms, as well as the Stark matrix elements. The field effects are found to be quite large in Fe/sup 15+/, relatively small in Fe/sup 23+/, and negligible in Fe/sup 25+/. The calculations indicate that there are large resonances near threshold in Fe/sup 23+/ that are unaffected by external fields and may be measurable in new experiments currently being designed. In addition, the contributions of radiative recombination and the possible interference between radiative and dielectronic recombination in low-lying resonances are considered. Even though the radiative recombination cross sections may be appreciable near threshold in Fe/sup 15+/ and Fe/sup 23+/, the interference between these processes appears to be completely negligible.
- Research Organization:
- Joint Institute for Laboratory Astrophysics, University of Colorado and National Bureau of Standards, Boulder, Colorado 80309
- OSTI ID:
- 5895440
- Journal Information:
- Phys. Rev. A; (United States), Journal Name: Phys. Rev. A; (United States) Vol. 35:7; ISSN PLRAA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of external electric fields on the dielectronic recombination cross section of lithium and sodium like ions
Distorted-wave calculations of dielectronic recombination as a function of electric field strength
Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Na-like W from Ne-like W
Technical Report
·
Thu Feb 28 23:00:00 EST 1985
·
OSTI ID:5886479
Distorted-wave calculations of dielectronic recombination as a function of electric field strength
Journal Article
·
Thu May 01 00:00:00 EDT 1986
· Phys. Rev. A; (United States)
·
OSTI ID:6018939
Excitation energies, radiative and autoionization rates, dielectronic satellite lines, and dielectronic recombination rates for excited states of Na-like W from Ne-like W
Journal Article
·
Sat Nov 14 23:00:00 EST 2009
· Atomic Data and Nuclear Data Tables
·
OSTI ID:21333870
Related Subjects
640302* -- Atomic
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
AUGMENTATION
CHARGE STATES
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTRIC FIELDS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ION COLLISIONS
IONS
IRON IONS
MANY-BODY PROBLEM
RECOMBINATION
TWO-BODY PROBLEM
Molecular & Chemical Physics-- Atomic & Molecular Properties & Theory
74 ATOMIC AND MOLECULAR PHYSICS
AUGMENTATION
CHARGE STATES
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DISTORTED WAVE THEORY
ELECTRIC FIELDS
ELECTRON COLLISIONS
ELECTRON-ION COLLISIONS
ION COLLISIONS
IONS
IRON IONS
MANY-BODY PROBLEM
RECOMBINATION
TWO-BODY PROBLEM