Relativistic MR-MP Energy Levels for K-like Fe

Santana, Juan A.; Ishikawa, Yasuyuki; Beiersdorfer, Peter

doi:10.3847/1538-4365/ab76c7

Title: Relativistic MR-MP Energy Levels for K-like Fe

Journal Article · Mon Mar 23 00:00:00 EDT 2020 · The Astrophysical Journal. Supplement Series (Online)

DOI:https://doi.org/10.3847/1538-4365/ab76c7· OSTI ID:1820542

^[1]; Ishikawa, Yasuyuki ^[2];

^[3]

Univ. of Puerto Rico at Cayey (United States)
Univ. of Puerto Rico at Rio Piedras, San Juan (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Berkeley, CA (United States)

Relativistic Multi-Reference Møller-Plesset (MR-MP) many-body perturbation theory calculations are reported for the ground and excited states of Fe viii. Energies are provided for states coming from the configurations $$3{s}^{m}3{p}^{n}3{d}^{p}4{l}^{q}$$ (l = s, p, d, and f) with $m+n+p+q=9$, p ≤ 3, and q ≤ 1. The MR-MP results were compared with the recommended observed values in the CHIANTI-v8 database and with previous ab-initio calculations. The MR-MP calculations reproduce 90% of the available observed values within 3500 cm^–1. The previous accurate ab-initio calculations reproduce only 50% of the observed values within 3500 cm^–1. Furthermore, the electronic structure of Fe viii is very complex and our MR-MP results show that accurate calculations require the inclusion of not only 3s²–3d², 3p²–3d², and 3s3p–3d² promotions but also of all electron correlations via perturbation theory.

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Research Organization:: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: AC52-07NA27344

OSTI ID:: 1820542

Report Number(s):: LLNL-JRNL-808802; 1015001; TRN: US2214244

Journal Information:: The Astrophysical Journal. Supplement Series (Online), Vol. 247, Issue 2; ISSN 1538-4365

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

References (25)

Relativistic MR-MP Energy Levels for L-shell Ions of Iron Santana, Juan A.; Peña-Cotto, Edgardo L.; Morales Butler, Emmanuel J. The Astrophysical Journal Supplement Series, Vol. 245, Issue 1 https://doi.org/10.3847/1538-4365/ab4c3d	journal	November 2019
The influence of core–valence electron correlations on the convergence of energy levels and oscillator strengths of ions with an open 3d shell using Fe VIII as an example Zeng, Jiaolong; Jin, Fengtao; Zhao, Gang Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 36, Issue 16 https://doi.org/10.1088/0953-4075/36/16/307	journal	August 2003
EFFECTIVE COLLISION STRENGTHS FOR ELECTRON-IMPACT EXCITATION OF Fe VIII Tayal, S. S.; Zatsarinny, O. The Astrophysical Journal, Vol. 743, Issue 2 https://doi.org/10.1088/0004-637X/743/2/206	journal	December 2011
Relativistic MR-MP energy levels: Low-lying states in the Mg isoelectronic sequence Santana, Juan A. Atomic Data and Nuclear Data Tables, Vol. 111-112 https://doi.org/10.1016/j.adt.2015.12.004	journal	September 2016
Electron-impact excitation of Fe ⁷⁺ Griffin, D. C.; Pindzola, M. S.; Badnell, N. R. Astronomy and Astrophysics Supplement Series, Vol. 142, Issue 2 https://doi.org/10.1051/aas:2000151	journal	March 2000
Relativistic MR–MP Energy Levels for L-shell Ions of Silicon Santana, Juan A.; Lopez-Dauphin, Nahyr A.; Beiersdorfer, Peter The Astrophysical Journal Supplement Series, Vol. 234, Issue 1 https://doi.org/10.3847/1538-4365/aa94d2	journal	January 2018
HIGH-ACCURACY MR-MP PERTURBATION THEORY ENERGY AND RADIATIVE RATES CALCULATIONS FOR CORE-EXCITED TRANSITIONS IN Fe XVI Díaz, F.; Vilkas, M. J.; Ishikawa, Y. The Astrophysical Journal Supplement Series, Vol. 207, Issue 1 https://doi.org/10.1088/0067-0049/207/1/11	journal	July 2013
Relativistic multireference many-body perturbation theory for quasidegenerate systems: Energy levels of ions of the oxygen isoelectronic sequence Vilkas, Marius J.; Ishikawa, Yasuyuki; Koc, Konrad Physical Review A, Vol. 60, Issue 4 https://doi.org/10.1103/PhysRevA.60.2808	journal	October 1999
Relativistic MR-MP Energy Levels for L-shell Ions of Sulfur and Argon Santana, Juan A.; Lopez-Dauphin, Nahyr A.; Morales Butler, Emmanuel J. The Astrophysical Journal Supplement Series, Vol. 238, Issue 2 https://doi.org/10.3847/1538-4365/aae14e	journal	October 2018
Relativistic multireference many-body perturbation theory for open-shell ions with multiple valence shell electrons: the transition rates and lifetimes of the excited levels in chlorinelike Fe X Ishikawa, Yasuyuki; Santana, Juan A.; Träbert, Elmar Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 43, Issue 7 https://doi.org/10.1088/0953-4075/43/7/074022	journal	March 2010
Relativistic MR-MP calculations of the energy levels and transition probabilities in Ni- to Kr-like Pt ions Santana, Juan A.; Ishikawa, Yasuyuki; Träbert, Elmar Atomic Data and Nuclear Data Tables, Vol. 100, Issue 1 https://doi.org/10.1016/j.adt.2013.05.001	journal	January 2014
Intercombination Transitions in the n = 4 Shell of Zn-, Ga-, and Ge-Like Ions of Elements Kr through Xe Träbert, Elmar; Santana, Juan; Quinet, Pascal Atoms, Vol. 6, Issue 3 https://doi.org/10.3390/atoms6030040	journal	July 2018
Relativistic multireference many-body perturbation calculations on multi-valence-electron systems: Benchmarks on Zn-like ions Vilkas, Marius J.; Ishikawa, Yasuyuki Physical Review A, Vol. 72, Issue 3 https://doi.org/10.1103/PhysRevA.72.032512	journal	September 2005
HIGH-RESOLUTION LABORATORY SPECTRA ON THE λ131 CHANNEL OF THE AIA INSTRUMENT ON BOARD THE SOLAR DYNAMICS OBSERVATORY Träbert, Elmar; Beiersdorfer, Peter; Brickhouse, Nancy S. The Astrophysical Journal Supplement Series, Vol. 211, Issue 1 https://doi.org/10.1088/0067-0049/211/1/14	journal	February 2014
Atomic data for the X-ray lines of Fe viii and Fe ix O’Dwyer, B.; Del Zanna, G.; Badnell, N. R. Astronomy & Astrophysics, Vol. 537 https://doi.org/10.1051/0004-6361/201117926	journal	December 2011
Emission Lines of Fe vii –Fe x in the Extreme Ultraviolet Region, 60–140 A Lepson, J. K.; Beiersdorfer, P.; Brown, G. V. The Astrophysical Journal, Vol. 578, Issue 1 https://doi.org/10.1086/342274	journal	October 2002
Atomic Data and Spectral Line Intensities for Fe VIII Bhatia, A. K.; Eissner, W. Atomic Data and Nuclear Data Tables, Vol. 76, Issue 2 https://doi.org/10.1006/adnd.2000.0845	journal	November 2000
CHIANTI – An atomic database for emission lines. Version 8 Del Zanna, G.; Dere, K. P.; Young, P. R. Astronomy & Astrophysics, Vol. 582 https://doi.org/10.1051/0004-6361/201526827	journal	October 2015
Multiconfigurational Dirac-Fock studies of two-electron ions. II. Radiative corrections and comparison with experiment Indelicato, P.; Gorveix, O.; Desclaux, J. P. Journal of Physics B: Atomic and Molecular Physics, Vol. 20, Issue 4 https://doi.org/10.1088/0022-3700/20/4/007	journal	February 1987
NEW Fe VIII LINE IDENTIFICATIONS USING OBSERVATIONS OF THE QUIET SUN Landi, E.; Young, P. R. The Astrophysical Journal, Vol. 713, Issue 1 https://doi.org/10.1088/0004-637X/713/1/205	journal	March 2010
Atomic data for astrophysics: improved collision strengths for Fe viii Del Zanna, G.; Badnell, N. R. Astronomy & Astrophysics, Vol. 570 https://doi.org/10.1051/0004-6361/201424508	journal	October 2014
Observation of Quasi-Continuum Line Emission from F[CLC]e[/CLC] [CSC]vii[/CSC] to F[CLC]e[/CLC] [CSC]x[/CSC] in the Extreme-Ultraviolet Region below 140 Å Beiersdorfer, P.; Lepson, J. K.; Brown, G. V. The Astrophysical Journal, Vol. 519, Issue 2 https://doi.org/10.1086/312122	journal	July 1999
Benchmarking atomic data for astrophysics: Fe VIII EUV lines Del Zanna, G. Astronomy & Astrophysics, Vol. 508, Issue 1 https://doi.org/10.1051/0004-6361/200912557	journal	October 2009
Resonance and intercombination lines in Mg-like ions of atomic numbers $Z = 13 - 92$ Santana, Juan A.; Träbert, Elmar Physical Review A, Vol. 91, Issue 2 https://doi.org/10.1103/PhysRevA.91.022503	journal	February 2015
Thermodynamic Properties of Key Organic Oxygen Compounds in the Carbon Range C ₁ to C ₄ . Part 1. Properties of Condensed Phases Wilhoit, Randolph C.; Chao, Jing; Hall, Kenneth R. Journal of Physical and Chemical Reference Data, Vol. 14, Issue 1 https://doi.org/10.1063/1.555747	journal	January 1985

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