Document Type
Article
Publication Date
2024
DOI
10.3847/1538-4357/ad82ec
Publication Title
The Astrophysical Journal
Volume
975
Issue
2
Pages
154 (10 pp.)
Abstract
ZrO is a well-studied metal monoxide because of its astrophysical importance in characterizing S stars. The bands of the d³Φ–a³Δ system (γ system) with v′≤4 and v" ≤ 5 are rotationally analyzed using the PGOPHER program to provide spectroscopic constants. The high-resolution ZrO emission spectrum was recorded with a Fourier transform spectrometer using a high-temperature carbon furnace source. New ab initio calculations of the transition dipole moment were carried out in order to determine the vibronic band strengths. The spectroscopic constants, along with the band strengths, are used to calculate a line list for the γ system. This line list can be used to determine Zr abundances in S stars. We also correct the line strengths for the B¹Π–A¹Δ transition calculated in our previous work.
Rights
© 2024 The Authors.
Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License.
Original Publication Citation
Bernath, P. F., Bhusal, M., & Liévin, J. (2024). Visible opacities of S-type stars: The d³Φ–a³Δ band system of ZrO. The Astrophysical Journal, 975(2), 154. https://doi.org/10.3847/1538-4357/ad82ec
ORCID
0000-0002-1255-396X (Bernath), 0009-0008-6042-3271 (Bhusal)
Repository Citation
Bernath, Peter F.; Bhusal, Manish; and Liévin, Jacques, "Visible Opacities of S-Type Stars: The d³Φ–a³Δ Band System of ZrO" (2024). Chemistry & Biochemistry Faculty Publications. 315.
https://digitalcommons.odu.edu/chemistry_fac_pubs/315