Experimental energy levels of 12C14N through MARVEL analysis

Abstract

The cyano radical (CN) is a key molecule across many different factions of astronomy and chemistry. Accurate, empirical rovibronic energy levels with uncertainties are determined for 8 doublet states of CN using the \Marvel{} (Measured Active Rotational-Vibrational Energy Levels) algorithm. \notrans{} transitions were validated from \nosources{} different published sources to generate \noenergy{} spin-rovibronic energy levels. The empirical energy levels obtained from the \Marvel{} analysis are compared to current energy levels from the \Mollist{} line list. The \Mollist{} transition frequencies are updated with \Marvel{} energy level data which brings the frequencies obtained through experimental data up to \alert{77.3\%} from the original 11.3\%, with 92.6\% of the transitions with intensities over 10${}^{-23}$ cm/molecule at 1000 K now known from experimental data. At 2000 K, 100.0\% of the partition function is recovered using only \Marvel{} energy levels, while 98.2\% is still recovered at 5000 K.

Marvel data available here: http://kkrk.chem.elte.hu/marvelonline/index.php Updated line list available: http://exomol.com/

References in corpus (6)

• Line lists for the A2PI-X2Sigma+ (red) and {B2Sigma+-X2Sigma} (violet) Systems of CN, 13C14N, and 12C15N, and Application to Astronomical Spectra
• The first detection of near-infrared CN bands in active galactic nuclei: signature of star formation
• ExoMol line lists XXXI: Spectroscopy of lowest eights electronic states of C${}_2$
• MARVEL analysis of the measured high-resolution rovibronic spectra of ${}^{48}$Ti${}^{16}$O
• Empirical Line Lists in the ExoMol Database
• Self-consistent atmosphere modeling with cloud formation for low-mass stars and exoplanets

Cited by in corpus (5)

• The 2020 release of the ExoMol database: molecular line lists for exoplanet and other hot atmospheres
• Volatile-to-sulfur Ratios Can Recover a Gas Giant's Accretion History
• Full Spectroscopic Model and Trihybrid Experimental-Perturbative-Variational Line List for CN
• Three-component modelling of O-rich AGB star winds I. Effects of drift using forsterite
• Automated Graph-Based Detection of Quantum Control Schemes: Application to Molecular Laser Cooling