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Recent advances in experimental laboratory astrophysics for stellar astrophysics applications and future data needs

Published online by Cambridge University Press:  12 October 2020

Juliet C. Pickering Open the ORCID record for Juliet C. Pickering [Opens in a new window] ,
Maria Teresa Belmonte ,
Christian P. Clear ,
Florence Liggins  and
Florence Concepcion-Mairey
Juliet C. Pickering
Affiliation:
Physics Department, Imperial College London London SW7 2BZ, UK email: [email protected]
Maria Teresa Belmonte
Affiliation:
Physics Department, Imperial College London London SW7 2BZ, UK email: [email protected]
Christian P. Clear
Affiliation:
Physics Department, Imperial College London London SW7 2BZ, UK email: [email protected]
Florence Liggins
Affiliation:
Physics Department, Imperial College London London SW7 2BZ, UK email: [email protected]
Florence Concepcion-Mairey
Affiliation:
Physics Department, Imperial College London London SW7 2BZ, UK email: [email protected]
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Abstract

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Accurate atomic data for line wavelengths, energy levels, line broadening such as hyperfine structure and isotope structure, and f-values, particularly for the line rich iron group elements, are needed for stellar astrophysics applications, and examples of recent measurements are given. These atomic data are essential for determination of elemental abundances in astronomical objects. With modern facilities, telescopes and spectrographs, access to underexplored regions (IR, UV, VUV), and improved stellar atmosphere models (3D, NLTE), and extremely large datasets, astronomers are tackling problems ranging from studying Galactic chemical evolution, to low mass stars and exoplanets. Such advances require improved accuracy and completeness of the atomic database for analyses of astrophysical spectra.

Keywords

atomic dataline: identificationline: profilesinstrumentation: spectrographsSun: abundancesstars: abundancesinfrared: starsultraviolet: stars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 15 , Symposium S350: Laboratory Astrophysics: From Observations to Interpretation , April 2019 , pp. 220 - 228
Copyright
© International Astronomical Union 2020

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