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

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.

References in corpus (8)

• Partition functions and equilibrium constants for diatomic molecules and atoms of astrophysical interest
• The {\it ab initio} calculation of spectra of open shell diatomic molecules
• Marvel analysis of the measured high-resolution rovibrational spectra of H2S
• MARVEL analysis of the measured high-resolution rovibronic spectra of ${}^{48}$Ti${}^{16}$O
• MARVEL analysis of the measured high-resolution rovibrational spectra of C2H2
• Laboratory spectra of hot molecules: data needs for hot super-Earth exoplanets
• Experimental energy levels and partition function of the ${}^{12}$C${}_2$ molecule
• Period and chemical evolution of SC stars

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