Influence of the plasma environment on atomic structure using an ion-sphere model

Belkhiri, Madeny Jean; Fontes, Christopher John; Poirier, Michel

doi:10.1103/PhysRevA.92.032501

Title: Influence of the plasma environment on atomic structure using an ion-sphere model

Journal Article · Thu Sep 03 00:00:00 EDT 2015 · Physical Review A - Atomic, Molecular, and Optical Physics

DOI:https://doi.org/10.1103/PhysRevA.92.032501· OSTI ID:1221808

Belkhiri, Madeny Jean ^[1]; Fontes, Christopher John ^[1]; Poirier, Michel ^[2]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Centre d'Etudes de Saclay, Cedex (France)

Plasma environment effects on atomic structure are analyzed using various atomic structure codes. To monitor the effect of high free-electron density or low temperatures, Fermi-Dirac and Maxwell-Boltzmann statistics are compared. After a discussion of the implementation of the Fermi-Dirac approach within the ion-sphere model, several applications are considered. In order to check the consistency of the modifications brought here to extant codes, calculations have been performed using the Los Alamos Cowan Atomic Structure (cats) code in its Hartree-Fock or Hartree-Fock-Slater form and the parametric potential Flexible Atomic Code (fac). The ground-state energy shifts due to the plasma effects for the six most ionized aluminum ions have been calculated using the fac and cats codes and fairly agree. For the intercombination resonance line in Fe²²⁺, the plasma effect within the uniform electron gas model results in a positive shift that agrees with the MCDF value of B. Saha et al.

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Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1221808

Alternate ID(s):: OSTI ID: 1213945

Report Number(s):: LA-UR-15-23708; PLRAAN; TRN: US1600414

Journal Information:: Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 92, Issue 3; ISSN 1050-2947

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 32 works

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Opacity calculations in X and XUV range using a detailed atomic code Poirier, M. Contributions to Plasma Physics, Vol. 58, Issue 10 https://doi.org/10.1002/ctpp.201700070	journal	May 2018
Plasma environment effects on K lines of astrophysical interest: I. Atomic structure, radiative rates, and Auger widths of oxygen ions Deprince, J.; Bautista, M. A.; Fritzsche, S. Astronomy & Astrophysics, Vol. 624 https://doi.org/10.1051/0004-6361/201935075	journal	April 2019
Computation of Atomic Astrophysical Opacities Mendoza, Claudio Atoms, Vol. 6, Issue 2 https://doi.org/10.3390/atoms6020028	journal	May 2018
Plasma environment effects on K lines of astrophysical interest: IV. IPs, K thresholds, radiative rates, and Auger widths in Fe II–Fe VIII Deprince, J.; Bautista, M. A.; Fritzsche, S. Astronomy & Astrophysics, Vol. 643 https://doi.org/10.1051/0004-6361/202038659	journal	November 2020
Plasma environment effects on K lines of astrophysical interest: II. Ionization potentials, K thresholds, radiative rates, and Auger widths in Ne- through He-like iron ions (Fe XVII – Fe XXV)⋆ Deprince, J.; Bautista, M. A.; Fritzsche, S. Astronomy & Astrophysics, Vol. 626 https://doi.org/10.1051/0004-6361/201935444	journal	June 2019
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Plasma environment effects on K lines of astrophysical interest. II. Ionization potentials, K thresholds, radiative rates and Auger widths in Ne- through He-like iron ions (Fe xvii - Fe xxv) Deprince, J.; Bautista, M. A.; Fritzsche, S. arXiv https://doi.org/10.48550/arxiv.1903.06458	text	January 2019

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Title: Influence of the plasma environment on atomic structure using an ion-sphere model

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