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19 April 2024

» arxiv » 1811.1511

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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 ;
Date:	5 Nov 2018
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.
Source:	arXiv, 1811.1511
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