Marvel Analysis of the Measured High-resolution Rovibronic Spectra of 90Zr16O

Zirconium oxide (ZrO) is an important astrophysical molecule that defines the S-star classification class for cool giant stars. Accurate, empirical rovibronic energy levels, with associated labels and uncertainties, are reported for nine low-lying electronic states of the diatomic molecule. These 80...

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Published inThe Astrophysical journal Vol. 867; no. 1
Main Authors McKemmish, Laura K., Borsovszky, Jasmin, Goodhew, Katie L., Sheppard, Samuel, Bennett, Aphra F. V., Martin, Alfie D. J., Singh, Amrik, Sturgeon, Callum A. J., Furtenbacher, Tibor, Császár, Attila G., Tennyson, Jonathan
Format Journal Article
LanguageEnglish
Published Philadelphia The American Astronomical Society 01.11.2018
IOP Publishing
Subjects
Algorithms
astronomical databases: miscellaneous
Astrophysics
Electron states
Empirical analysis
Energy levels
Giant stars
molecular data
opacity
Partitions (mathematics)
planets and satellites: atmospheres
stars: low-mass
Temperature dependence
Zirconium
Zirconium oxides
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Summary:Zirconium oxide (ZrO) is an important astrophysical molecule that defines the S-star classification class for cool giant stars. Accurate, empirical rovibronic energy levels, with associated labels and uncertainties, are reported for nine low-lying electronic states of the diatomic molecule. These 8088 empirical energy levels are determined using the Measured Active Rotational-Vibrational Energy Levels algorithm with 23,317 input assigned transition frequencies, 22,549 of which were validated during this study. A temperature-dependent partition function is presented alongside updated spectroscopic constants for the nine low-lying electronic states.
Bibliography:AAS11550
Stars and Stellar Physics
ISSN:0004-637X
1538-4357
DOI:10.3847/1538-4357/aadd19