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arXiv · 1811.01511

MARVEL Analysis of the Measured High-Resolution Rovibronic Spectra of 90Zr16O

Laura K McKemmish·Jasmin Borsovszky·Katie L Goodhew·Samuel Sheppard·Aphra F V Bennett·Alfie D J Martin·Amrik Singh·Callum A J Sturgeon·Tibor Furtenbacher·Attila G Csaszar·Jonathan Tennyson
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Abstract

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 9 low-lying electronic states of the diatomic 90Zr16O molecule. These 8088 empirical energy levels are determined using the Marvel (Measured Active Rotational-Vibrational Energy Levels) algorithm with 23 317 input assigned transition frequencies, 22 549 of which were validated. A temperature-dependent partition function is presented alongside updated spectroscopic constants for the 9 low-lying electronic states.

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Laura K McKemmish, Jasmin Borsovszky, Katie L Goodhew, Samuel Sheppard, Aphra F V Bennett, Alfie D J Martin, Amrik Singh, Callum A J Sturgeon, Tibor Furtenbacher, Attila G Csaszar, Jonathan Tennyson. 2018-11-05. MARVEL Analysis of the Measured High-Resolution Rovibronic Spectra of 90Zr16O. https://doi.org/10.3847/1538-4357%2Faadd19

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