K-shell photoionization of O+ and O2+ ions: Experiment and theory
Abstract
Absolute cross sections for the single and double K-shell photoionization of carbonlike O2+ and nitrogenlike O+ ions were measured in the 526-620-eV photon energy range by employing the ion-photon merged-beam technique at the SOLEIL synchrotron radiation facility. We report high-resolution spectroscopy up to E /Δ E ≈5300 was achieved. Rich resonance structures observed in the experimental spectra are analyzed and identified with the aid of R-matrix and multiconfiguration Dirac-Fock (MCDF) methods. For these two atomic oxygen ions of particular astrophysical interest we characterized the strong 1s →2p and the weaker 1s →np (n >2 ) resonances observed. A detailed comparison of the energies of the 1s →2p resonances in the first members of the oxygen isonuclear sequence measured by synchrotron based experiments and the Chandra and XMM-Newton x-ray satellites is presented.
- Authors:
-
- Univ. Paris-Sud, Orsay (France); Synchrotron SOLEIL, Gif-sur-Yvette (France)
- Univ. Paris-Sud, Orsay (France)
- Qatar University, Doha (Qatar)
- Jordan Univ. of Science and Technology, Irbid (Jordan)
- Alternative Energies and Atomic Energy Commission (CEA), Arpajon (France)
- Queen's Univ., Belfast, Northern Ireland (United Kingdom); Harvard Smithsonian Center for Astrophysics, Cambridge, MA (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
- Sponsoring Org.:
- USDOE; Scientific Research Support Fund; SESAME–Lounsbery Foundation; National Science Foundation (NSF)
- OSTI Identifier:
- 1565360
- Alternate Identifier(s):
- OSTI ID: 1208203
- Grant/Contract Number:
- AC05-00OR22725; Bas/2/02/2010
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review A - Atomic, Molecular, and Optical Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 2; Journal ID: ISSN 1050-2947
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; Optics; Physics
Citation Formats
Bizau, J. M., Cubaynes, D., Guilbaud, S., Al Shorman, M. M., Gharaibeh, M. F., Ababneh, I. Q., Blancard, C., and McLaughlin, B. M. K-shell photoionization of O+ and O2+ ions: Experiment and theory. United States: N. p., 2015.
Web. doi:10.1103/physreva.92.023401.
Bizau, J. M., Cubaynes, D., Guilbaud, S., Al Shorman, M. M., Gharaibeh, M. F., Ababneh, I. Q., Blancard, C., & McLaughlin, B. M. K-shell photoionization of O+ and O2+ ions: Experiment and theory. United States. https://doi.org/10.1103/physreva.92.023401
Bizau, J. M., Cubaynes, D., Guilbaud, S., Al Shorman, M. M., Gharaibeh, M. F., Ababneh, I. Q., Blancard, C., and McLaughlin, B. M. Mon .
"K-shell photoionization of O+ and O2+ ions: Experiment and theory". United States. https://doi.org/10.1103/physreva.92.023401. https://www.osti.gov/servlets/purl/1565360.
@article{osti_1565360,
title = {K-shell photoionization of O+ and O2+ ions: Experiment and theory},
author = {Bizau, J. M. and Cubaynes, D. and Guilbaud, S. and Al Shorman, M. M. and Gharaibeh, M. F. and Ababneh, I. Q. and Blancard, C. and McLaughlin, B. M.},
abstractNote = {Absolute cross sections for the single and double K-shell photoionization of carbonlike O2+ and nitrogenlike O+ ions were measured in the 526-620-eV photon energy range by employing the ion-photon merged-beam technique at the SOLEIL synchrotron radiation facility. We report high-resolution spectroscopy up to E /Δ E ≈5300 was achieved. Rich resonance structures observed in the experimental spectra are analyzed and identified with the aid of R-matrix and multiconfiguration Dirac-Fock (MCDF) methods. For these two atomic oxygen ions of particular astrophysical interest we characterized the strong 1s →2p and the weaker 1s →np (n >2 ) resonances observed. A detailed comparison of the energies of the 1s →2p resonances in the first members of the oxygen isonuclear sequence measured by synchrotron based experiments and the Chandra and XMM-Newton x-ray satellites is presented.},
doi = {10.1103/physreva.92.023401},
journal = {Physical Review A - Atomic, Molecular, and Optical Physics},
number = 2,
volume = 92,
place = {United States},
year = {Mon Aug 03 00:00:00 EDT 2015},
month = {Mon Aug 03 00:00:00 EDT 2015}
}
Web of Science
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