Photoionization of P+: Experiment and theory
Autor: | A. Morales-Mori, L. Hernández, K. C. Chartkunchand, A. Antillón, Aaron Covington, Sultana N. Nahar, O. González, A. M. Juarez, E.M. Hernández, Dag Hanstorp, G. Hinojosa |
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Rok vydání: | 2017 |
Předmět: |
Physics
Radiation Ion beam Photoionization mode Photoionization Photon energy 01 natural sciences Atomic and Molecular Physics and Optics Interstellar medium Cross section (physics) 0103 physical sciences Monochromatic color Atomic physics 010306 general physics 010303 astronomy & astrophysics Spectroscopy Beam (structure) |
Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 187:215-223 |
ISSN: | 0022-4073 |
Popis: | An experimental and theoretical study of the single photoionization cross section of the P+ cation of phosphorus is presented. Photoionization (PI) cross sections are instrumental for the determination of abundances in the interstellar medium. The experiment was performed by merging an ion beam with a photon beam. The photon beam was nearly monochromatic and had an energy resolution of 24 meV. Calculations were carried out using the Breit–Pauli R-matrix method. The combined study was developed in the photon energy interval from 18 eV (68.9 nm) to 50 eV (24.8 nm). Comparison between the measured and the calculated cross section shows good agreement in general and identifies features of the process and existence of states in the experimental beam. The present results should provide for more accurate modeling of P+. |
Databáze: | OpenAIRE |
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