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Laboratory studies of Vacuum Ultra-Violet (VUV) emission spectra of heavy element ions

Published online by Cambridge University Press:  09 October 2020

W.-Ü Lydia Tchang-Brillet Open the ORCID record for W.-Ü Lydia Tchang-Brillet [Opens in a new window] ,
Ali Meftah ,
Djamel Deghiche ,
Jean-François Wyart ,
Christian Balança ,
Norbert Champion  and
Christophe Blaess
W.-Ü Lydia Tchang-Brillet
Affiliation:
Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique et Atmosphèère (LERMA), Observatoire de Paris-Meudon, PSL Research University; Sorbonne Universités, CNRS, F-92190 Meudon, France email: [email protected]
Ali Meftah
Affiliation:
Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique et Atmosphèère (LERMA), Observatoire de Paris-Meudon, PSL Research University; Sorbonne Universités, CNRS, F-92190 Meudon, France email: [email protected] Laboratoire de Physique et Chimie Quantique, University Mouloud MammeriTizi-Ouzou, Algeria
Djamel Deghiche
Affiliation:
Laboratoire de Physique et Chimie Quantique, University Mouloud MammeriTizi-Ouzou, Algeria
Jean-François Wyart
Affiliation:
Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique et Atmosphèère (LERMA), Observatoire de Paris-Meudon, PSL Research University; Sorbonne Universités, CNRS, F-92190 Meudon, France email: [email protected] Laboratoire Aimé Cotton, CNRS UMR9188, Univ Paris-Sud, Univ Paris-Saclay, bâtiment 505, 91405 Orsay CEDEX, France
Christian Balança
Affiliation:
Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique et Atmosphèère (LERMA), Observatoire de Paris-Meudon, PSL Research University; Sorbonne Universités, CNRS, F-92190 Meudon, France email: [email protected]
Norbert Champion
Affiliation:
Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique et Atmosphèère (LERMA), Observatoire de Paris-Meudon, PSL Research University; Sorbonne Universités, CNRS, F-92190 Meudon, France email: [email protected]
Christophe Blaess
Affiliation:
Laboratoire d’Etude du Rayonnement et de la Matière en Astrophysique et Atmosphèère (LERMA), Observatoire de Paris-Meudon, PSL Research University; Sorbonne Universités, CNRS, F-92190 Meudon, France email: [email protected]
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Abstract

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Reliable spectroscopic data are needed for interpretation and modeling of observed astrophysical plasmas. For heavy element ions, which have complex spectra, experimental data are rather incomplete. To provide valuable fundamental quantities, such as precise wavelengths, level energies and semi-empirical transition probabilities, we are carrying out laboratory studies of high-resolution VUV emission spectra of moderately charged ions of transition metals and rare earth elements. Experimental and theoretical methods are summarized. Examples of studies are described.

Keywords

heavy elementsspectraenergy levelstransition probabilitiesvacuum ultraviolet
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S357: White Dwarfs as Probes of Fundamental Physics: Tracers of Planetary, Stellar and Galactic Evolution , October 2019 , pp. 84 - 88
Copyright
© International Astronomical Union 2020

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