Work

X-ray and extreme-ultraviolet spectra from collisions of Ar$$^{18+}$$ and O$$^{8+}$$ ions with neutrals

Year: 2026

Type: article

Abstract: We present measurements of K-shell X-ray emission following charge exchange of fully ionized argon with various neutral gaseous targets at small collision energies inside an electron beam ion trap. We also resolve the principal quantum number of electron capture in extreme-ultraviolet spectra from initially bare and hydrogen-like oxygen ions held in the same trap. We analyze discrepancies between these as well as previous measurements with theoretical models based on the multichannel Landau–Zener approach.

Source: The European Physical Journal Special Topics

DOI: 10.1140/epjs/s11734-026-02492-8

Authors: Stepan Dobrodey, Chintan Shah, Sonja Bernitt, Ming Feng Gu, Liyi Gu, Thomas Pfeifer, José R. Crespo López-Urrutia

Institutions: Max Planck Institute for Nuclear Physics, Goddard Space Flight Center, Johns Hopkins University, Helmholtz Institute Jena, GSI Helmholtz Centre for Heavy Ion Research, Space Sciences Laboratory, University of California, Berkeley, Space Research Organisation Netherlands

Language: English

Topic: Atomic and Molecular Physics

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,790

Funders: European Commission, Deutsche Forschungsgemeinschaft, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Max-Planck-Gesellschaft, Max Planck Institute for Nuclear Physics

Awards: Integrated Activities for the High Energy Astrophysics Domain, Suche nach hochionisiertem Technetium in extrem heißen entwickelten Sternen

OpenAlex ID: W7169650587

FWCI: 2.764

Cites: 68

Cited by: 1

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