Header menu link for other important links
X
Autoionization resonances in the argon iso-electronic sequence
Juby P. George, Milind V. Rundhe,
Published in
2012
Volume: 90
   
Issue: 6
Pages: 547 - 555
Abstract
We report results of theoretical studies of 3s → np and 2s → np autoionization resonances, respectively, in the 3p and the 2p photoionization cross sections of a few members (Ar, K +, Ca 2+, Fe 8+, Zn 12+, and Kr 18+) of the argon isoelectronic sequence, within the framework of the relativistic random phase approximation and using the relativistic multichannel quantum defect theory. The present approach would enable analysis of complex atomic spectra especially of atomic and (or) ionic species that are found in stellar gases in a computationally economical way. The shape profiles of the autoionization resonances have been analyzed in the present work using appropriate Fano parameters. The quantum defects determined for some of the lower or intermediate excited states are found to be in good agreement with the experimental and (or) theoretical results. © 2012 Published by NRC Research Press.
About the journal
JournalCanadian Journal of Physics
ISSN00084204
Open AccessNo
Concepts (17)
  •  related image
    AUTOIONIZATION RESONANCE
  •  related image
    COMPLEX ATOMIC SPECTRA
  •  related image
    FANO PARAMETERS
  •  related image
    IONIC SPECIES
  •  related image
    ISOELECTRONIC SEQUENCE
  •  related image
    MULTI-CHANNEL QUANTUM DEFECT THEORY
  •  related image
    Photoionization cross section
  •  related image
    QUANTUM DEFECTS
  •  related image
    RELATIVISTIC RANDOM-PHASE APPROXIMATION
  •  related image
    Theoretical result
  •  related image
    Theoretical study
  •  related image
    Approximation algorithms
  •  related image
    Atomic spectroscopy
  •  related image
    Krypton
  •  related image
    Quantum theory
  •  related image
    Resonance
  •  related image
    Argon