Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI

In the present study, the photoionization cross-sections are calculated for the trans-Fe ions Se IV, Se V, and Se VI over a wide energy region for ground and meta-stable states within the Dirac Atomic <i>R</i>-matrix approach (<span style="font-variant: small-caps;">darc&...

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Main Authors: Brendan M. McLaughlin, Joern Wilms, James F. Babb
Format: Article
Language:English
Published: MDPI AG 2025-04-01
Series:Atoms
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Online Access:https://www.mdpi.com/2218-2004/13/4/31
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author Brendan M. McLaughlin
Joern Wilms
James F. Babb
author_facet Brendan M. McLaughlin
Joern Wilms
James F. Babb
author_sort Brendan M. McLaughlin
collection DOAJ
description In the present study, the photoionization cross-sections are calculated for the trans-Fe ions Se IV, Se V, and Se VI over a wide energy region for ground and meta-stable states within the Dirac Atomic <i>R</i>-matrix approach (<span style="font-variant: small-caps;">darc</span>). Our cross-section results, when benchmarked against the available high-resolution measurements taken at the Advanced Light Source (<span style="font-variant: small-caps;">ALS</span>) for Se IV (Ga-like) and Se VI (Cu-like) selenium ions, show good agreement over the entire photon energy investigated. The present high quality cross-section data are suitable for use in many applications in astrophysics.
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spelling doaj-art-7006199a0b534716b9f168b3ce6ff3ad2025-08-20T02:24:43ZengMDPI AGAtoms2218-20042025-04-011343110.3390/atoms13040031Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VIBrendan M. McLaughlin0Joern Wilms1James F. Babb2Centre for Theoretical Atomic, Molecular and Optical Physics, School of Mathematics and Physics, The Old Physics Building, Queens University Belfast, Belfast BT7 1NN, UKKarl-Remeis-Sternwarte, Astronomisches, Institut der Universität Erlangen-Nürnberg, Sternwartstr. 7, 96049 Bamberg, GermanyInstitute for Theoretical Atomic, Molecular and Optical Physics, Center for Astrophysics, Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAIn the present study, the photoionization cross-sections are calculated for the trans-Fe ions Se IV, Se V, and Se VI over a wide energy region for ground and meta-stable states within the Dirac Atomic <i>R</i>-matrix approach (<span style="font-variant: small-caps;">darc</span>). Our cross-section results, when benchmarked against the available high-resolution measurements taken at the Advanced Light Source (<span style="font-variant: small-caps;">ALS</span>) for Se IV (Ga-like) and Se VI (Cu-like) selenium ions, show good agreement over the entire photon energy investigated. The present high quality cross-section data are suitable for use in many applications in astrophysics.https://www.mdpi.com/2218-2004/13/4/31atomic processesatomic datascatteringphotoionizationcross-sectionsrelativistic
spellingShingle Brendan M. McLaughlin
Joern Wilms
James F. Babb
Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI
Atoms
atomic processes
atomic data
scattering
photoionization
cross-sections
relativistic
title Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI
title_full Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI
title_fullStr Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI
title_full_unstemmed Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI
title_short Photoionization of Trans-Fe Ions: Se IV, Se V, and Se VI
title_sort photoionization of trans fe ions se iv se v and se vi
topic atomic processes
atomic data
scattering
photoionization
cross-sections
relativistic
url https://www.mdpi.com/2218-2004/13/4/31
work_keys_str_mv AT brendanmmclaughlin photoionizationoftransfeionsseivsevandsevi
AT joernwilms photoionizationoftransfeionsseivsevandsevi
AT jamesfbabb photoionizationoftransfeionsseivsevandsevi