High-accuracy measurements of core-excited transitions in light Li-like ions
The transition energies of the two 1𝑠 core-excited soft x-ray lines (dubbed 𝑞 and 𝑟) from 1𝑠22𝑠1𝑆1/2 to the respective upper levels 1𝑠(2𝑆)2𝑠2𝑝(3𝑃)2𝑃3/2 and 2𝑃1/2 of Li-like oxygen, fluorine, and neon were measured and calibrated using several nearby transitions of He-like ions. The m...
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| Hauptverfasser: | , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
4 September, 2024
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| In: |
Physical review
Year: 2024, Jahrgang: 110, Heft: 3, Pages: 1-7 |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/PhysRevA.110.L030802 |
| Online-Zugang: | Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevA.110.L030802 Verlag, kostenfrei, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.110.L030802 
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| Verfasserangaben: | Moto Togawa, Steffen Kühn, Chintan Shah, Vladimir A. Zaytsev, Natalia S. Oreshkina, Jens Buck, Sonja Bernitt, René Steinbrügge, Jörn Seltmann, Moritz Hoesch, Christoph H. Keitel, Thomas Pfeifer, Maurice A. Leutenegger, and José R. Crespo López-Urrutia |
MARC
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| 245 | 1 | 0 | |a High-accuracy measurements of core-excited transitions in light Li-like ions |c Moto Togawa, Steffen Kühn, Chintan Shah, Vladimir A. Zaytsev, Natalia S. Oreshkina, Jens Buck, Sonja Bernitt, René Steinbrügge, Jörn Seltmann, Moritz Hoesch, Christoph H. Keitel, Thomas Pfeifer, Maurice A. Leutenegger, and José R. Crespo López-Urrutia |
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| 520 | |a The transition energies of the two 1 core-excited soft x-ray lines (dubbed and ) from 12211/2 to the respective upper levels 1(2)22(3)23/2 and 21/2 of Li-like oxygen, fluorine, and neon were measured and calibrated using several nearby transitions of He-like ions. The major remaining source of energy uncertainties in monochromators, the periodic fluctuations produced by imperfect angular encoder calibration, is addressed by a simultaneously running photoelectron spectroscopy measurement. This leads to an improved energy determination of 5 parts per million, showing fair agreement with previous theories as well as with our own, involving a complete treatment of the autoionizing states studied here. Our experimental results translate to an uncertainty of only 1.6 km/s for the oxygen line blend used to determine the outflow velocities of active galactic nuclei, ten times smaller than previously possible. | ||
| 700 | 1 | |a Kühn, Steffen |e VerfasserIn |4 aut | |
| 700 | 1 | |a Shah, Chintan |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zaytsev, Vladimir A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Oreshkina, Natalia S. |e VerfasserIn |0 (DE-588)1232424382 |0 (DE-627)1756569088 |4 aut | |
| 700 | 1 | |a Buck, Jens |e VerfasserIn |4 aut | |
| 700 | 1 | |a Bernitt, Sonja |e VerfasserIn |4 aut | |
| 700 | 1 | |a Steinbrügge, René |e VerfasserIn |4 aut | |
| 700 | 1 | |a Seltmann, Jörn |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hoesch, Moritz |e VerfasserIn |4 aut | |
| 700 | 1 | |a Keitel, Christoph H. |d 1965- |e VerfasserIn |0 (DE-588)1012769488 |0 (DE-627)699763630 |0 (DE-576)170520188 |4 aut | |
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| 700 | 1 | |a Leutenegger, Maurice A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Crespo López-Urrutia, José Ramon |e VerfasserIn |0 (DE-588)113701816X |0 (DE-627)893956635 |0 (DE-576)491044976 |4 aut | |
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