S-Type Stars: Line List for the A²Π-X²Σ⁺ Band System of LaO

Authors

P. F. Bernath, Old Dominion UniversityFollow
R. Dodangodage, Old Dominion UniversityFollow
J. Liévin, Université Libre de Bruxelles

Document Type

Article

Publication Date

2023

DOI

10.3847/1538-4357/ace68a

Publication Title

The Astrophysical Journal

Volume

953

Issue

2

Pages

181 (1-7)

Abstract

LaO bands are found in the spectra of cool S-type stars. The bands of the A²Π–X²Σ⁺ transition with v' ⩽ 3 and v'' ≤ 4 are rotationally analyzed, providing spectroscopic constants for the A²Π state. Line strengths are calculated using an ab initio transition dipole moment function, and radiative lifetimes for the A²Π state have also been computed. A line list for the A²Π–X²Σ⁺ transition of LaO is provided and can be used to determine LaO stellar abundances.

Rights

© 2023 The Authors.

Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 (CC BY 4.0) Licence. Any further distribution of this work must maintain attribution to the authors and the title of the work, journal citation and DOI.

Original Publication Citation

Bernath, P. F., Dodangodage, R., & Liévin, J. (2023). S-type stars: Line list for the A²Π-X²Σ⁺ band system of LaO. The Astrophysical Journal, 953(2), 1-7, Article 181. https://doi.org/10.3847/1538-4357/ace68a

ORCID

0000-0002-1255-396X (Bernath), 0000-0003-4814-4970 (Dodangodage)

Repository Citation

Bernath, P. F.; Dodangodage, R.; and Liévin, J., "S-Type Stars: Line List for the A²Π-X²Σ⁺ Band System of LaO" (2023). Chemistry & Biochemistry Faculty Publications. 280.
https://digitalcommons.odu.edu/chemistry_fac_pubs/280