Abstract
In this paper, we have performed accurate, high-lying theoretical calculations of the resonance energies and quantum defects of several series of autoionizing Rydberg resonances of the Ne2+ ion of interest to astrophysics and plasma physics via the modified atomic orbital theory (MAOT) method. The calculated resonance energies are in very good agreement with existing experimental data from the Advanced Light Source (ALS), and the discrepancies between theoretical calculation values and experimental data are minimal. In addition, this study calculates and compares all the uncertain energy positions in the ALS measurements. This comparison provides greater confidence in the ALS data and the new extrapolated results for astrophysical applications.
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References
Bizau, J.M., et al.: Photoionization study of Kr+ and Xe+ ions with the combined use of a merged-beam set-up and an ion trap. J. Phys. B at. Mol. Opt. Phys. 44, 055205 (2011). https://doi.org/10.1088/0953-4075/44/5/055205
Bruneau, J.: Correlation and relaxation effects in ns2-nsnp transitions. J. Phys. B at. Mol. Phys. 17, 3009 (1984). https://doi.org/10.1088/0022-3700/17/15/015/meta
Dance, M., Palay, E., Nahar, S.N., Pradhan, A.K.: Fine-structure collision strengths and line ratios for [Ne V] in infrared and optical sources. MNRAS 435, 1576–1581 (2013). https://doi.org/10.1093/mnras/stt1398
Diallo, A., Ba, M.D., Badiane, J.K., Gning, M.T., Sow, M., Sakho, I.: 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. Jour. Atom. Mol. Conden. Nano Phys. 5, 215 (2018a). https://doi.org/10.26713/jamcnp.v5i3.1111
Diallo, A., Ba, M.D., Badiane, J.K., Gning, M.T., Sow, M., Sakho, I.: Photoionization study of Cl II, Ar II and Kr II ions using the modified atomic orbital theory. J. Mod. Phys. 9, 2594 (2018b). https://doi.org/10.4236/jmp.2018.914162
Gning, M.T., Sakho, I.: Study of resonant photoionization of P III and P IV ions for the determination of abundances of phosphorus in astrophysical objects. Iran. J. Science 47, 1909–1919 (2023). https://doi.org/10.1007/s40995-023-01514-7
Gning, M.T., Sakho, I.: Photoionization study of S4+ Ions using the modified atomic orbital theory. Iran. J. Science (2024). https://doi.org/10.1007/s40995-024-01599-82349
Gning, M.T., Sakho, I., Diallo, A.: Photoionization study of K III and Br IV ions in the framework of the modified orbital atomic theory. Ind. J. Phys. 97, 3759–3773 (2023). https://doi.org/10.1007/s12648-023-02607-0
Ho, L.C., Keto, E.: The mid-infrared fine-structure lines of neon as an indicator of star formation rate in galaxies. ApJ. 658, 314–318 (2007). https://doi.org/10.1086/511260/pdf
Liang, L., Gao, W., Zhou, C.: Photoionization of Ne-like Ca XI. Phys. Scr. 87, 015301 (2013). https://doi.org/10.1088/0031-8949/87/01/015301/meta
McLaughlin, B.M., Balance, C.P.: Photoionization cross sections for the trans-iron element Se+ from 18 to 31 eV. J. Phys. B at. Mol. Opt. Phys. 45, 095202 (2012). https://doi.org/10.1088/0953-4075/45/9/095202
Nahar, S.N.: Photoionization of fine structure levels of Ne III. New Astron. 67, 97–102 (2019). https://doi.org/10.1016/j.newast.2018.09.011
Nahar, S.N., Covington, A.M., Kilcoyne, D., Davis, V.T., Thompson, J.F., Hernandez, E.M., Antillon, A., Juarez, A.M., Morales-Mori, A., Hinojosa, G.: Single-photon photoionization of oxygen-like Ne III. Int. J. Mass Spectrom. 443, 61–69 (2019). https://doi.org/10.1016/j.ijms.2019.05.009
Pradhan, A.K.: Close-coupling calculations for photoionisation cross sections of neon ions: Ne II, Ne III and Ne IV. J. Phys. B. at. Mol. Opt. 12, 3317 (1979). https://doi.org/10.1088/0022-3700/12/20/012/meta
Pradhan, A.K.: Photo-ionization cross-sections of Ne II, Ne III and Ne IV. Mon. Not. R. Astron. Soc. 190, 5P-8P (1980). https://doi.org/10.1093/mnras/190.1.5P
Rubin, R.H.: Proc. IAU Symp. In: Duc, P.A., Braine, J., Brinks, E. (ed.) Recycling Intergalactic and Interstellar Matter. Astron. Soc. Pac. 217, 190 (2004).
Rubin, R.H., Dufour, R.J., Geballe, T.R., Colgan, S.W.J., Harrington, J.P., Lord, S.D., Liao, A.L., Levine, D.A.: ASP Conf. Ser. In: Ferland, G., Savin, W.D. (ed.) Spectroscopic Challenges of Photoionized Plasmas. Astron. Soc. Pac., 247, 47 (2001).
Sakho, I.: Modified atomic orbital calculations for (1snl) 3Lπ and 2(1,0)n±1,3Se excited states of he isoelectronic sequence. J. at. Mol. Sci. 1, 224 (2010a). https://doi.org/10.4208/jams.042710.051510a
Sakho, I.: A modification of atomic orbital theory and its application to (1snl) 1Lπ and (nl2) Lπ excited states of he-like ions. J. at. Mol. Sci. 1, 103 (2010b). https://doi.org/10.4208/jams.022510.031010a
Sakho, I.: 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 (2014). https://doi.org/10.4208/jams.110813.021414a
Sakho, I.: Study of single-photon photoionization of oxygen-like Ne III via the screening constant per unit nuclear charge. Int. J. Mass Spectrom. 474, 116800 (2022). https://doi.org/10.1016/j.ijms.2022.116800
Shure, M.A., Houck, J.R., Gull, G.E., Herter, T.: Detection of the NE III 36 micron forbidden line in the planetary nebula NGC 6543. Astrophys. J. 281, L29–L31 (1984). (https://adsabs.harvard.edu/full/1984ApJ...281L..29S)
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M.T.G.: Conceptualization, Methodology, Investigation, Formal analysis, Writing—original draft,Writing—reviewand editing. I.S.: Methodology, Investigation,Writing—review and editing, Visualization, Formal analysis, Supervision. All authors have read and agreed to the published version of the manuscript.
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Gning, M.T., Sakho, I. Extended calculations of resonance energies and quantum defects for oxygen-like Ne III using modified atomic orbital theory. Proc.Indian Natl. Sci. Acad. (2024). https://doi.org/10.1007/s43538-024-00323-9
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DOI: https://doi.org/10.1007/s43538-024-00323-9