Abstract
The single photoionization of S V ions into S VI is investigated in this paper within the framework of modified atomic orbital theory (MAOT). The theoretical resonance energies, quantum defects and effective nuclear charges of the autoionizing Rydberg series 2s22p53s2nd (1P1, 3D1), 2s22p53s2ns (1P1, 3D1) and 2s2p63s2np (1P1) resulting from the 2p → nd, 2p → ns and 2s → np transitions respectively in the 2s22p63s2 (1S0) ground state of S4+ are reported. The present results are in excellent agreement with experimental synchrotron radiation measurements and theoretical calculations (MCDF and R-matrix) by Mosnier et al. (Phys Rev A 106:033113, 2022). The newly tabulated MAOT data up to n = 40 are relevant for both laboratory and astrophysical plasmas.
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References
Bizau JM et al (2005) Absolute cross sections for L-shell photoionization of the ions N2+, N3+, O3+, O4+, F3+, F4+ and Ne4+. Astron Astrophys 439:387. https://doi.org/10.1051/0004-6361:20052641
Butler K, Mendoza C, Zeippen C (1984) Oscillator strengths and photoionization cross-sections for positive ions in the magnesium isoelectronic sequence. J Mon Not R Astron Soc 209:343. https://doi.org/10.1093/mnras/209.2.343
Diallo A, Ba MD, Badiane JK, Gning MT, Sow M, Sakho I (2018a) Photoionization study of Cl II, Ar II and Kr II ions using the modified atomic orbital theory. J Mod Phys 9:2594. https://doi.org/10.4236/jmp.2018.914162
Diallo A, Ba MD, Badiane JK, Gning MT, Sow M, Sakho I (2018b) Modified atomic orbital calculations of energy and width of the 2pns 1P0 and 2pnd 1P0 Rydbergs series of be-like N3+, O4+, F5+ and Ne6+ ions. J At Mol Condens Nano Phys 5:215. https://doi.org/10.26713/jamcnp.v5i3.1111
Feldman PD, Strobel DF, Moos HW, Weaver HA (2004) The far-ultraviolet spectrum of the Io plasma torus. ApJ 601:583. https://doi.org/10.1086/380302
Gning MT, Sakho I (2023) Study of resonant photoionization of P III and P IV ions for the determination of abundances of phosphorus in astrophysical objects. Iran J Sci. https://doi.org/10.1007/s40995-023-01514-7
Gning MT, Sakho I, Diallo A (2023) Photoionization study of K III and Br IV ions in the framework of the modified orbital atomic theory. Indian J Phys 97:3759. https://doi.org/10.1007/s12648-023-02607-0
Kalyar MA et al (2016) Measurements of photoionization cross section of the 4p levels and oscillator strength of the 4p→nd 2D3/2,5/2 transitions of potassium. Opt Laser Technol 77:72. https://doi.org/10.1016/j.optlastec.2015.09.001
Kennedy E, Costello J, Mosnier JP, Kampen PV (2004) VUV/EUV ionising radiation and atoms and ions: dual laser plasma investigations. Rad Phys Chem 70:291
Kim DS, Kwon DH (2013) Theoretical photoionization spectra for the Mg-like S4+ ion: partial and total cross sections for the ground 3s2 1S and excited 3s3p 3P and 3s3p 1P states. Phys Rev A 88:033426. https://doi.org/10.1103/PhysRevA.88.033426
Kjeldsen H (2006) Photoionization cross sections of atomic ions from merged-beam experiments. J Phys B At Mol Opt Phys 39:R325. https://doi.org/10.1088/0953-4075/39/21/R01
Kristensen B, Andersen T, Folkmann F, Kjeldsen H, West JB (2002) Photoionization of singly charged sulfur ions in the absolute continuum cross section and extreme-ultraviolet region: resonance structures. Phys Rev A 65:022707. https://doi.org/10.1103/PhysRevA.65.022707
McLaughlin BM, Balance CP (2012) Photoionization cross-sections for the trans-iron element Se+ from 18 eV to 31 eV. J Phys B At Mol Opt Phys 45:095202. https://doi.org/10.1088/0953-4075/45/9/095202
Morrissey PF et al (1997) Simultaneous spectroscopy and imaging of the Jovian aurora with the Hopkins ultraviolet telescope and the hubble space telescope. ApJ 476:918. https://doi.org/10.1086/303648
Mosnier JP et al (2022) L-shell photoionization of Mg-like S4+ in ground and metastable states: experiment and theory. Phys Rev A 106:033113. https://doi.org/10.1103/PhysRevA.106.033113
Mosnier JP et al (2023) L-shell photoionization of magnesium-like ions with new results for Cl5+. Atoms 11:66. https://doi.org/10.3390/atoms11040066
Müller A (2015) Precision studies of deep-inner-shell photoabsorption by atomic ions. Phys Scr 90:054004. https://doi.org/10.1088/0031-8949/90/5/054004
Nahar SN (2021) Photoionization features of the ground and excited levels of Cl II and benchmarking with experiment. New Astron 82:101447. https://doi.org/10.1016/j.newast.2020.101447
Sakho I (2014) General formalism of the modified atomic orbital theory for the Rydberg series of atoms and ions: application to the photoionization of Ne+. J At Mol Sci 5:206
Sakho I (2019) Photoionization of Ne atom ions in the framework of the modified atomic orbital theory. J At Mol Condens Nano Phys 6:93. https://doi.org/10.26713/jamcnp.v6i2.1251
Serrão JP (1995) Absorption spectrum of SV. J Quant Spectrosc Radiat Transf 54:447
Stancalie V (2018) Photoionization of S3+ using the Breit-Pauli R-matrix method. J Quant Spectrosc Radiat Transf 205:7
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Gning, M.T., Sakho, I. Photoionization Study of S4+ Ions Using the Modified Atomic Orbital Theory. Iran J Sci 48, 531–540 (2024). https://doi.org/10.1007/s40995-024-01599-8
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DOI: https://doi.org/10.1007/s40995-024-01599-8